70results about How to "Add measurement function" patented technology

A portable terminal includes a GPS processing unit and RTC oscillator. In the GPS processing unit, a free-run RTC counter continuously counts real time clocks generated by the RTC oscillator even in the power saving mode, a time maintenance processing unit which includes a memory storing the count value of the free-run RTC counter and a notified GPS time upon a shift from a normal power mode to the power saving mode, calculates the duration of the power saving mode from the difference between the count value stored in the memory and the count value read from the free-run RTC counter upon return from the power saving mode to the normal power mode, and calculates the current GPS time by adding the calculated duration of the power saving mode to the stored GPS time upon a shift from the normal power mode to the power saving mode, and a position measurement processing unit performs position measurement by receiving a radio wave from the GPS satellite in the normal power saving mode, also notifies the time maintenance processing unit of the GPS time acquired when position measurement is performed, and performs position measurement by using the GPS time notified from the time maintenance processing unit upon a shift from the power saving mode to the normal power mode. A GPS keeping method is also disclosed.

The invention discloses an intelligent sensor for the electrical conductivity of water quality. The sensor comprises a temperature-conductivity probe used for sensing the temperature and the electrical conductivity of the water; a signal conditioning module which is connected with the temperature-conductivity probe, forms a sensing circuit with the temperature-conductivity probe and carries out filtering and amplification to an output signal; a microprocessor which is connected with the signal conditioning module, is used for digitizing the signal input by the signal conditioning module and adopts IEEE1451 standards to carry out the calibration and alignment of channels; a bus interface module which is connected with the microprocessor and is used for the functions of networking and plugging and playing; and a power module which supplies power to the circuits of all parts of the sensor under the control of the microprocessor and realizes the characteristic of low power consumption. The invention can eliminate the polarization effect of the probe, has pollution resistance, large measuring range and low price, and is characterized by the functions of self alignment and compensation, self diagnosis and plugging and playing and high integrity.

The invention discloses an automobile safety tail lamp control device with lamplight language. The automobile safety tail lamp control device consists of an automobile speed sensor, a range finder and a controller. The controller comprises a singlechip, a lamplight drive circuit and an interface circuit, wherein a safety distance prompt module is stored inside the singlechip. After the singlechip processes a received front automobile speed Vm and a relative distance Ln in the safety distance prompt module, an enabled instruction f of the lamplight language of a high-position brake tail lamp is obtained and outputted to the lamplight drive circuit which controls the different statuses of the high-position brake lamp through turning on / off a relay. The control device can intelligently calculate and forecast the optimum safety distance on different driving conditions according to the real speeds of front and back automobiles and the distance change.

The invention relates to a device of stimulating the multi-factor joint effect of the electrostatic dynamic potential which comprises the imitating chamber, the data collecting and processing system connected with each other. The chamber comprises the rotating friction disk, static friction disk, thermoprobe, hygrometric probe, elevating controlling device and deriving motor, wherein the friction disk is fixed relative to the static friction disk and connected with the deriving motor, the static friction disc is connected with the elevating controlling device through the force application pallet. The data collecting and processing system comprises the electrostatic dynamic potential measuring probe connected with the host machine and computer in turn.

The invention discloses a method for measuring inter-modulation spectral lines by using a network analyzer based on a multi-voice excited step recovery diode (SRD) pulse generator and relates to a method for measuring inter-modulation spectral lines. The method solves the problem that the harmonic phase reference of the conventional single-voice excited SRD pulse generator cannot provide the inter-modulation spectral lines with controllable quantity and resolution nearby each sub-harmonic frequency point. The signal output end of the SRD-based pulse generator is connected with the phase reference signal input end of the nonlinear vector network analyzer (NVNA); the excitation signal input end of the SRD-based pulse generator is connected with the excitation signal output end of a multi-voice excitation signal generator; and the output provided with a vector signal generator is used as excitation of the SRD-based pulse generator, n-voice modulation signals to be detected are input to a measurement port, phase reference signals are added to all measurement frequency points, meanwhile, continuous and stable detected spectral lines are provided, and thus an effective measurement value of a detected channel phase spectrum is obtained. The method is used for measuring the inter-modulation spectral lines.

The invention relates to a forest measurement method and particularly relates to a forest measurement method based on an electronic tree measurement gun. An inclination sensor angle measurement, a laser distance measurement, an electronic compass, a central control unit, a flash memory, a liquid crystal display, a micro-button, a universal serial bus (USB) data communication interface and the like are performed high-density high-reliability integration, and a physical casing is designed in accordance with ergonomics. Functions such as measurement of coordinates, measurement of tree heights, measurement of angle gauges and measurement of forest mean height are achieved. In the measurement process, measurement data are digitally displayed and stored automatically. Problems that the period of data acquirement is long, the efficiency is low and the precision is poor in traditional forest measurement methods are solved. The efficiency and the precision are improved, the period is shortened, and the accurate measurement of forest stand is achieved.

The invention relates to a low-laser loss parameter comprehensive measurement device for a high reflector. In the process of developing a high-performance laser gyro, a high reflector in an annular cavity is required to have very low scattering, transmission and back scattering loss; and in an annular laser gyro, loss generated by all elements of a laser cavity is the main reason for the locking of the annular laser gyro. The low-laser loss parameter comprehensive measuring device for the high reflector, which is provided by the invention, comprises a light source assembly and an integrating sphere which are arranged on an optical platform, wherein the light source assembly is provided with a wave plate and an attenuating plate, and the integrating sphere is provided with a photomultiplier, a transmission measurement component A, an integral scattering measurement component B and a back scattering measurement component C. The invention realizes the measurement of integral scattered power, transmissivity and back scattered power on the same device, improves the measurement function of the device, reduces the measurement cost, and can automatically change an incidence angle by rotating a sample in the measurement; and in addition, all the three measurements can obtain two-dimension measured value distribution map of the sample.

The invention relates to a static dynamic potential intelligent test device with a real-time testing technique. The device comprises a data acquisition module and a personal computer (PC) machine, wherein the data acquisition module comprises an input unit, a multi-way switch, an analog / digital (A / D) converter, a complex programmable logic device (CPLD), an opto-coupler isolation module and a universal serial bus (USB) bridge; the USB bridge transmits a data acquisition command signal of the PC machine to the CPLD; the CPLD transmits the signal to the input unit, the multi-way switch and the A / D converter through the input action of the opto-coupler isolation module; the input unit transmits an acquired static potential signal to the A / D converter through the multi-way switch; and the A / Dconverter transmits a digital signal back to the CPLD through the isolation amplifying action of the opto-coupler isolation module. The static dynamic potential intelligent test device can perform real-time analog monitoring on the dynamic operation process of the whole process in the fields of hazardous article storehouse, gas station, oil tanker, railway, highway transportation and the like, and continuously record and display the size, polarity and dynamic waveform of the static dynamic potential generated in the dynamic operation process of the whole process in real time.

The embodiment of the invention discloses a method, a device and a system for detecting system noise, which can enhance accuracy of base-band power measured value. The method provided by the embodiment of the invention includes steps of obtaining idle air interface time frequency resource of uplink frame of measurement frame; obtaining average system noise power of the measurement frame according to the obtained idle air interface time frequency resource of the uplink frame; carrying out smooth filtering to the average system noise power of the measurement frame to obtain smooth value of the average system noise power of the measurement frame; and using the smooth value of the average system noise power of the measurement frame to linearly correct practical measured value of base-band power and using the linear correction value as final measured value of the base-band power. The technical solution of the embodiment of the invention increases measurement function of middle radio frequency system noise and can be used in OFDM system.

The invention discloses an instrument for measuring rock point load strength and a structural surface frictional angle in the field. The instrument comprises a lower bottom plate and an upper bottom plate, wherein support columns are mounted between the lower bottom plate and the upper bottom plate, and a turbine reducer is mounted on the upper bottom plate and connected with a storage hand wheel and a screw; a slider is mounted on the support columns, and the screw is connected with a connecting block which is connected with the slider; a rock point load strength measuring device or a rock structural surface frictional angle measuring device is mounted between the connecting block and the lower bottom plate. By means of the instrument for measuring rock point load strength and the structural surface frictional angle in the field, the weight of an existing rock point load instrument is reduced substantially, measurement parameters of the instrument are directly stored and transmitted without manual recording, requirements of rock point load strength measurement in the field for low weight and intelligence of the instrument are met, the way of measuring the rock structural surface frictional angle through visual inspection at the site is avoided, and the function of measurement of the structural surface frictional angle is increased.

The invention discloses a wireless electrical parameter measuring instrument which is mainly composed of a core control and communication module, a power management module, an electrical parameter measuring module and a display / indicate and control module. The core control and communication module comprises a core controller circuit, a serial port and a universal serial bus (USB) communication circuit. The power management module serves as a power management circuit. The electrical parameter measuring module comprises a small scale electric quantity, current and power consumption measurement circuit, a large scale electric quantity, current and power consumption measurement circuit, a voltage measurement circuit and a protection circuit. The display / indicate and control module serves as a display / indicate and control circuit. The wireless electrical parameter measuring instrument enables a communication mode to be improved from old single local control display to wireless and wired modes to read data and simultaneously does not reduce original measuring functions.

The invention discloses a real-time spectrum analyzer tracking generator design method. 100 MHZ reference serves as phase demodulation reference of a first local oscillator and a tracking generator local oscillator loop; a first local oscillator signal is divided into two paths through a coupler, wherein one path of local oscillator signal passes through an amplifier 1 and then, reaches a reception down-conversion channel, and the other path of local oscillator signal passes through an amplifier 2 and then, reaches a frequency mixer; the reception down-conversion channel outputs an Intermediate-frequency signal to a high-speed ADC; and the high-speed ADC carries out digitization on an analog signal, and then, carrying out signal processing analysis. A tracking generator local oscillator output signal realizes mixed output or direct output with the first local oscillator signal through selection of switches 1 and 2, and then, passes through an amplifier 3, a low-pass filter 2 and a radio-frequency attenuator in sequence to serve as tracking generator output. On the basis of an original hardware architecture of a real-time spectrum analyzer, the method increases a tracking generatorand output channels thereof, conveniently realizes spectrum analyzer all-band tracking generator design, enables the spectrum analyzer to have a tracking generator measurement function, and greatly expands the application range of the real-time spectrum analyzer.

Provided is an aircraft engine lubricating oil level and oil product integrated measurement sensor comprises a lower inner electrode 1, an upper inner electrode 2, a lower outer electrode 3, an upperouter electrode 4, a housing 5, an installation base 6, a circuit board 7, an aviation socket 8, a temperature sensor 9, high-temperature wires 10 and an oil leakage through hole 11; the lower inner electrode 1, the upper inner electrode 2, the lower outer electrode 3, the upper outer electrode 4 and the temperature sensor 9 are fixed in the housing 5; the oil leakage through hole 11 runs throughthe housing 5, the lower outer electrode 3 and the upper outer electrode 4, and the circuit board 7 is fixed in the installation base 6 and connected to the aviation socket 8; the upper inner electrode 2, the lower outer electrode 3, the upper outer electrode 4 and the temperature sensor 9 are fixed to the circuit board 7 through the high-temperature wires 10.

The invention discloses a high-temperature and high-pressure liquid pressure and temperature measurement sensor based on ceramic package. The sensor is mainly composed of a pressure sensor sensitive element comprising a variable capacitor, a temperature sensor sensitive element, a ceramic shell, sensor signal transmission leads, and a related conditioning circuit in a measurement instrument. The pressure and temperature of liquid can be measured by contacting the pressure and temperature sensor sensitive elements wrapped in the ceramic shell with the measured liquid and transmitting signals measured by the sensor sensitive elements to a measurement circuit inside the measurement instrument through the sensor leads. The sensor not only can measure the pressure of liquid, but also can measure the temperature of liquid. The sensor is conductive to the analysis of the influence of liquid temperature on liquid pressure and temperature compensation. The sensor has great advantages compared with the existing sensors which can only measure a single parameter of liquid, and is of high measurement precision.

The following invention pertains to the introduction of a gas (or fluid) around a SPM probe or nanotool™ to control chemical activity e.g. oxygen to promote oxidation, argon to inhibit oxidation or clean dry air (CDA) to inhibit moisture to control static charging due to the action of the probe or nanotools and to provide vacuum at and around the tip and substrate area. The invention can also produce electrical current for use with active electronic devices on, in or near the body of the device. In addition by use of a fluid like water, certain oils, and other liquids in conjunction with specific tip structure either electric discharge machining can be used at the tip area on the tip itself (in conjunction with a form structure on the work piece) or on a work piece beneath the tip to shape, polish and remove material at very small scales (10 microns to 1 nm or less).

The present invention discloses a chromatic dispersion collimator objective. The chromatic dispersion collimator objective comprises a plurality of single lenses, light with different wavelengths is incident at different divergence angles after luminous points of a continuous spectroscopic light source pass through the chromatic dispersion collimator objective, the positions of the luminous points, if the divergence angle of one wavelength beam in a designed wavelength range is close to zero, the divergence angles of beams smaller than the wavelengths are negative values, and the divergence angles of beams larger than the wavelengths are positive values. The chromatic dispersion collimator objective can perform free combination with imaging lenses or microobjectives or laser machine focusing objective lenses in the prior art to achieve an independent objective lens system with a spectrum confocal chromatic dispersion objective lens function to expand the measurement function of the current measurement system, and for the laser micromachine system, the problems of dimension measurement such as coaxial height tracking and depth after machining, and the intelligence and the precisionlevel of the devices and instruments can be observably improved.

An intelligent power tour-inspection terminal comprises an RFID module, a shooting module, a distance sensor, an angle sensor, a microprocessor and a communication module; the RFID module reads an RFID label of a measured object, and collects state data of the measured object according to the read RFID label information; the shooting module collects image data of the measured object; the distance sensor measures the distance, namely a first distance, between a measuring point and the measured object; the angle sensor measures an azimuth of the measured object and an inclination angle of a connecting line between the highest point of the measured object and the measuring point; the microprocessor calculates and obtains the height of the measured object according to the first distance, the inclination angle and the azimuth; and the communication module sends the state data, image data, first distance, inclination angle, azimuth and height to a background system. The invention also provides a mobile phone. Due to arrangement of the shooting module, the distance sensor and the angle sensor, image collecting and distance, angle and height measuring functions are provided additionally.

The present invention provides an atmospheric aerosol analysis method based on coherent laser radar spectrum intensity data, according to the signal detection process analysis of the coherent laser radar, the maximum intensity of the gate spectrum data of different distances contains atmospheric echo information. Spectral intensity data of corresponding height is extracted and can correspondinglyinclude an atmospheric extinction coefficient and a backscattering coefficient atmospheric laser radar equation. The atmospheric extinction coefficient is inverted by utilizing the calculation relationship between the atmospheric backscattering coefficient and the atmospheric extinction coefficient. The coherent laser radar carries out aerosol detection, the application function of the coherent radar is expanded, and the data utilization rate of a coherent system is improved. Compared with traditional aerosol laser radar detection, the spectral intensity data is large in signal-to-noise ratio,and the detection distance and precision have obvious advantages. Moreover, the coherent laser radar is compact in structure, optical components are stable and reliable, and the reliability of the used environment is superior to that of a traditional aerosol radar.

The invention discloses a multifunctional measuring and line drawing ruler which comprises a ruler main body, a movable ruler, an installation structure, an angle scale, a first datum line and a second datum line. The movable ruler is rotationally arranged on the ruler body, the installation structure is arranged on the movable ruler and used for installing a line drawing pen, the angle scale is arranged on the ruler main body, the circle center of the angle scale coincides with the rotation center of the movable ruler, the first datum line is arranged on the ruler main body, a drawing radiusline is formed between the rotation center of the movable ruler and the center of the line drawing pen, the drawing radius line can coincide with the first datum line, the second datum line is arranged on the ruler main body, the movable ruler is provided with an angle measuring line which can coincide with the second datum line, and the angle measuring line rotates along with the movable ruler toform an angle measuring mechanism with the second reference line. According to the measuring and line drawing ruler, the movable ruler which is rotatably arranged on the ruler main body is matched with the angle scale to carry out angle measurement, the line drawing pen is arranged on the movable ruler, a circular arc line can be drawn by rotating the movable ruler, and therefore the functions ofangle measurement and circular arc line drawing can be added through a simple structure.

The invention provides a multifunctional wrench. The multifunctional wrench comprises a box spanner and an open-end wrench, wherein the box spanner is in blocking connection with the open-end wrench; the box spanner is equipped with three box spanner heads, a fixed handle and a telescopic handle; the open-end wrench comprises an open-end wrench end and an open-end wrench body; the box spanner heads are arranged in the open-end wrench body; and the open-end wrench body is equipped with a graduated scale and an LED lamp. The multifunctional wrench provided by the invention integrates wrenches of various specifications, saves space, meets multi-aspect using requirements, is convenient to carry, and is not liable to lose; and meanwhile, the LED lamp and the graduated scale increase an illuminating function and a measuring function for the wrench, so that the functions are various.

The invention provides a novel leakage current measuring device and a method thereof. The device is characterized in that the device comprises an A-phase current transformer, a B-phase current transformer, a C-phase current transformer, a zero line current transformer, an A-phase current transformer secondary line, a B-phase current transformer secondary line, a C-phase current transformer secondary line, a zero line current transformer secondary line, a measurement current transformer and a measurement terminal; the A-phase current transformer, the B-phase current transformer, the C-phase current transformer and the zero line current transformer are respectively installed on an A phase, a B phase, a C phase and a zero line of a line to be measured; the A-phase current transformer secondary line, the B-phase current transformer secondary line, the C-phase current transformer secondary line and the zero line current transformer secondary line penetrate through holes of the measurement current transformer. According to the invention, the leakage current of the original line is calculated by measuring the induced current of the current transformer, so the problem that a transformer isdifficult to sleeve to measure the leakage current due to overlarge line distance of the low-voltage 400V overhead line is solved.

The invention discloses an angle measuring triangular rule. One side of the triangular rule is provided with angle measuring graduations taking the middle point of the same side as a reference point; the angle measuring graduations are in a range of 0-180 degrees; the other sides of the triangular rule are carved with graduations for measuring straight lines; the graduations for measuring the straight lines are in a range of 0-100 mm; and the triangular rule is made of a plastic or stainless steel material, and is an equilateral triangular rule. Any angle in the range of 0-180 degrees can be measured through the angle measuring graduations on one of the three sides, and straight-line distances of 0-100 millimeters can be measured simultaneously by using the graduations for measuring the straight lines on the other two sides, so that the measuring functions of the triangular rule are verified.

The invention discloses a parallel precise measuring system for measuring the surface area and the perimeter of a tiny object. In the invention, geodesic active contour line is applied to the parallel measurement problem of irregular-shaped image multi-objective area / perimeter, a quick and precise measuring method is developed and is applied to a two-dimensional image measuring machine, so as to realize the quick and precise measurement of surface area / perimeter of multiple tiny objects. Besides, a novel centroid self-calibration technology is used, the calibration of pixel size equivalent can be finished accurately without any standard test pieces, finally, the actual surface area and perimeter of the tiny object can be obtained. A guide rail is moved during calibration, and the displacement of the guide rail is precisely measured by a double-frequency laser.

The invention discloses an underwater Brillouin scattering spectrum measurement device and measurement method. In the measurement device, an iodine molecule absorption cell receives a scattered light signal and filters Brillouin scattered light; the filtered Brillouin scattered light passes through a beam splitter, a beam expander and a dual-channel FP etalon in sequence; the beam splitter extracts a small part of the Brillouin scattered light, and a reference light energy detection device receives and detects a reference energy value; the beam expander controls an optical path emission angle so as to control the line width of the dual-channel FP etalon; and the two-channel FP etalon is used for transmitting two parts of scattered light on the two sides of the Brillouin spectrum to a first passing light energy detection device and a second passing light energy detection device respectively to detect an energy value. According to the underwater Brillouin scattering spectrum measurement device and measurement method, the spectrum of Brillouin scattering light can be calculated in real time, the measurement function of the edge detection technology is expanded, measurement of the whole Brillouin scattering spectrum is achieved, and good timeliness and stability are achieved.

An external device is configured to be detachably attached to a measuring instrument via a connector. The external device includes a connector part, an external device body part and a movable connection part. The connector part has a connection terminal. The external device body part has a display part on a side surface of the external device body part. The movable connection part is configured to connect the connector part with the external device body part. The movable connection part is a biaxial rotation hinge having two pivot axes which are in a twisted position relationship with respect to each other.

The invention discloses a novel multifunctional four-way reversing valve. The novel multifunctional four-way reversing valve comprises a valve seat and a valve element, wherein the valve seat comprises four fluid connecting ports, the four fluid connecting ports are horizontally connected with the valve seat and communicate with the interior of a valve body, the four fluid connecting ports comprise a supply side inlet, a supply side outlet, a load side inlet and a load side outlet, the supply side inlet and the supply side outlet are used for being connected with a main supply side system, andthe load side inlet and the load side outlet are used for being connected with a user side system; and the valve element is assembled in an inner cavity of the valve seat in a sealed and rotating mode, four channels are formed in the valve element, and when the valve element rotates relative to the valve seat, reversing, blocking and 0-100% flow adjusting functions of the valve are achieved through the valve element and the four fluid connecting ports. The novel multifunctional four-way reversing valve can have the functions of flowing reversing, blocking and controlling or flow adjusting offluids such as gas and liquid in a pipeline, the four-way valve can be conveniently installed on a connecting pipe in a system, the design and manufacturing cost is reduced, and the energy consumptionof the system is also reduced.

The invention discloses a vernier caliper additionally provided with an improved measuring pawl. The vernier caliper comprises a main ruler, a depth indicator disposed at one end of the main ruler, a vernier scale which is attached to the main ruler and can slide, and a first inner measuring pawl and a first outer measuring pawl which are fixed on the main ruler and the vernier scale. The first inner measuring pawl is disposed above the main ruler, the first outer measuring pawl is disposed below the main ruler, the improved measuring pawl sleeves the first outer measuring pawl from the bottom to the top, the pawl foot of the improved measuring pawl is provided with a cover plate with a nut hole, and the improved measuring pawl is fixed to the first outer measuring pawl by screwing tight a nut. According to the invention, on the basis of a conventional 0-200 mm universal vernier caliper, an improved inner measuring pawl and an improved outer measuring pawl are adaptively selected and additionally arranged, so that the test requirement of a special process is satisfied, and the application scope of the 0-200 mm universal vernier caliper is enlarged. The improved inner measuring pawl and the improved outer measuring pawl employ a common measuring tool steel material and are formed through lathe processing, what is needed is only fixation on the conventional 0-200 mm universal vernier caliper through an original screw, the installation is convenient, and the installation and application can be at any time and at any place. At the same time, a large amount of cost for purchasing professional calipers is saved.