6154 results about "Measuring equipment" patented technology

A proximity measuring apparatus (70) comprises an interrogator (80) for generating an interrogation signal encoded with a reference signature code comprising concatenated codes and emitting it as interrogating radiation. It also incorporates a transponder (90) for receiving the interrogating radiation, demodulating it to extract its signature code and then remodulating it after a delay period to provide a signal for reemission as return radiation therefrom. The interrogator (80) receives return radiation at its antenna (260) and demodulates it to extract its signature code and then correlates the code with the reference code to determine mutual correlation thereof. The interrogator (80) incorporates a computer (290) for controlling a scan direction of the antenna (260) and for measuring time delay between emission of the interrogating radiation therefrom and receipt of corresponding return radiation. The computer (290) computes distance and relative bearing of a transponder (90) providing the return radiation from the scan direction and the time delay. The apparatus (70) may be used for improving road vehicle safety.

Environmental indicators computed for a particular environment are converted into a transmittable data format each of the environmental indicators is computed by electronic environmental measurement device from among multiple diverse electronic environmental measurement devices. Environmental indicators are transmitted to a portable data processing system associated with a user, which analyzes each of the environmental indicators according to an environment sensitivity profile stored at the portable data processing system for the user. Control signals are determined by the portable computer system for adjusting multiple environment control systems that control the particular environment in response to the analysis, such that a particular environment is temporarily managed by a portable data processing system according to environmental sensitivities of a particular user located within that particular environment.

An audio beacon system, apparatus and method for collecting information on a panelist's exposure to media. An audio beacon is configured as on-device encoding technology that is operative in a processing device (e.g., cell phone, PDA, PC) to enable the device to encode an environmental sound and transmit it for a predetermined period of time. The acoustically transmitted data is received and processed by a portable audience measurement device, such as Arbitron's Personal People Meter™ (“PPM”), or other specially equipped portable device to enable audience measurement systems to achieve higher levels of detail on panel member activity and greater association of measurement devices to their respective users.

A measurement apparatus for measuring traffic of packets with high time resolution is provided. The measurement apparatus includes an accumulation part for accumulating packet lengths of packets having predetermined header information in successively received packets, and storing an accumulated value of the packet lengths in a storage; and a periodic reading part for reading the accumulated value from the storage at predetermined time intervals, and outputting the accumulated value.

The invention discloses a gas-conducting pressure measuring intermittent producing oil exploitation device. The gas-conducting pressure measuring intermittent producing oil exploitation device makes contact with well liquid during working, the gas-conducting pressure measuring intermittent producing oil exploitation device comprises gas conducting and pressure measuring equipment used for measuring the hydrostatic fluid column pressure, controlling equipment used for receiving data of the gas conducting and pressure measuring equipment so as to control oil pumping equipment to realize intermittent oil production, and the oil pumping equipment making direct contact with the well liquid, wherein the gas conducting and pressure measuring equipment comprises tubular billet pressure measuring equipment and sleeving pressure measuring equipment, the tubular billet pressure measuring device comprises a nitrogen cylinder, a nitrogen booster pump, a capillary steel pipe used for conducting nitrogen, a pressure transmitting cylinder used for bearing the nitrogen and tubular billet pressure sensors connected to an outlet of the nitrogen booster pump and an inlet of the capillary steel pipe which are sequentially connected, and the sleeving pressure measuring device comprises a sleeving pressure sensor connected with the oil pumping equipment. Controller equipment receives data of a data collector to control the working frequency of oil extraction equipment or start and stop of the oil extraction equipment, so that the intermittent production is realized to achieve the effect of reducing the production cost.

An audience measurement system generates signatures of unknown pieces of content viewed by panel members, and generates multiplexed reference signatures of known pieces of content. The signatures of the unknown pieces of content are stored and transmitted to a central processing site, where they are compared with the reference signatures for their identification. A signature comparator finds matches between the signatures of the unknown and the known contents.

The invention discloses a composite polymethacrylimide foam wave absorption material which is prepared by the following steps: (1) performing surface treatment on a wave absorber, namely uniformly mixing the wave absorber and a surfactant with a solvent, ultrasonically processing, drying to remove the solvent, and breaking and grinding to obtain a wave absorber subjected to surface treatment; (2) preparing expandable polymethacrylimide resin particles; (3) preparing the composite polymethacrylimide foam wave absorption material. The material is good in wave absorption performance, heat resistance and mechanical property, can be used for avoiding the defects of complex process, material waste and the like caused by a process that the material is machined to obtain a complex shape, can absorb electromagnetic waves to prevent electromagnetic wave interference, can be applied to the aspects of medical appliances, household appliances, electronic products, high-rise buildings, communication equipment, measurement equipment and the like, also can be used for stealth of various aircrafts, and has wide application prospect in the civil or military field.

An apparatus for determining the refraction of a patient's eye includes a wavefront measurement device that determines aberrations in a return beam from the patient's eye viewing a target through a corrective test lens in the apparatus. The wavefront measurement device preferably outputs an display representative of the quality of vision afforded the patient through the test lens. The display may be, e.g., a representation of a Snellen chart convolved with the optical characteristics of the patient's vision, an overall quality of vision scale, or the optical contrast function, all of which are based on the wavefront measurements of the patient's eye. The examiner may use the display information to conduct a refraction examination or other vision tests without the subjective response from the patient.

A method is disclosed for implementing and reporting network measurements between a source of probe packets and an element, such as a router. The invention exploits commonly implemented features on commercial elements. By exploiting these features, the expense of deploying special purpose measurement devices can be avoided. In one aspect of the invention, a plurality of probe packets is transmitted in a packet network with each of the probe packets having the same key and the same aggregation characteristic. A report is then received from an instructionless element regarding the plurality of probe packets, thereby enabling measurement of a parameter of the packet network.

The present invention relates to a base station of a cellular radio system, which base station comprises antenna equipment for receiving signals from a certain mobile station simultaneously by at least two antenna beams directed in different directions, and measuring equipment for measuring the signal levels of the signals received by the respective antenna beans. For determining the position of the mobile station with greater accuracy the base station is provided with calculating means which are responsive to the measuring equipment to determine the direction from the base station to the mobile station by calculating the relations between the signal levels of the signals for the respective beams.

The invention discloses a noninvasive continuous human body arterial blood pressure measuring method and equipment. The noninvasive continuous human body central arterial blood pressure measuring method comprises the steps as follows: calculating individualization parameters of a to-be-measured person artery blood vessel network model according to acquired pulse wave forms of radial arteries and brachial arteries; calculating radial artery blood pressure systolic pressure, diastolic pressure and blood pressure wave forms according to radial artery pulse wave speeds and artery blood vessel network parameters; calculating ascending aorta-radial artery transfer functions; further calculating central arterial blood pressure. The noninvasive continuous human body central arterial blood pressure measuring equipment consists of a signal processing and analyzing unit, a pulse wave and motion signal acquisition unit worn on the wrist as well as an electro-cardio and motion signal acquisition unit worn in front of the chest. According to the method and the equipment, electrocardiograms, the radial artery blood pressure, the central arterial blood pressure as well as motions and postures are monitored simultaneously, heart rate and electro-cardio morphological parameters are analyzed in various motion states, artery network model parameters and blood pressure parameters, particularly central arterial pressure wave form parameters, are analyzed, and the method and the equipment have great significance for prevention and control on cardiovascular diseases, particularly for prevention and control on high-risk diseases such as the hypertension, the coronary heart disease and the like.

The present invention relates to a method for improving the efficiency of dimensional acquisition of an object by a dimensional measurement device directed over the object, comprising the steps: a) directing the measurement device over the object to acquire its dimensions, b) providing an indication of the resolution of the acquired regions, c) re-directing the measurement device over at least part of the acquired regions indicating insufficient resolution according to predetermined criteria, d) updating the indication of the resolution of the acquired regions, and e) repeating steps c) and d) until sufficient resolution is indicated according to the predetermined criteria, thereby efficiently acquiring the dimensions of the object at sufficient resolution. It also relates to a computer program therefor.

A method of measuring ego-motion speed of a mobile device is described. The linear motion of the device is measured using an image sensor component, thereby creating linear motion data. The rotational or angular motion of the device is measured using an inertial sensor component, thereby creating rotational motion data. The rotational and linear motion data of the device are used to calculate the ego-motion speed of the mobile device. This ego-motion speed can then be used to control a virtual camera control module for adjusting the view of 3D content viewed by the user on the mobile device as the user moves the device, changing the position of the virtual camera.

An indoor surveying apparatus comprises a light source, a color imaging system, a memory storing calibration coefficients, and a computing device for determining coordinates of 3D intersection points of the emitted light with objects using calibration coefficients and images captured by the imaging system. A method of using the surveying apparatus comprises the steps of capturing first image of a scene illuminated by the light source, capturing second image of the scene without the illumination by the light source, comparing the two images to identify locations of the 3D intersection points in the first image, using the set of calibration coefficients and the locations of the 3D intersection points in the first image to compute 3D coordinates of the intersection points, whereby surveying information collected by the apparatus comprises the coordinates of 3D intersection points and the color photographic images captured from known poses relative to the 3D intersection points.

The embodiment of the invention relates to the technical field of wireless communication, particularly relates to a pilot signal transmission method, a signal measuring method, a signal measuring system, a piece of pilot signal transmission equipment and a piece of signal measuring equipment, and aims to solve the problem that each antenna unit transmits one pilot signal to result in very low transmission power of each antenna unit, and user equipment is high in complexity when the number of the antenna units is large in the prior art. The pilot signal transmission method of the embodiment of the invention comprises the step in which network side equipment sends determined CSI feedback configurations to user equipment, wherein one CSI feedback configuration corresponds to one CSI-RS resource, and a pilot signal corresponding to each port of one CSI-RS resource is sent through a set of antenna units corresponding to the port. By adopting the scheme provided by the embodiment of the invention, the transmission power of the antenna units can be increased to enable the user equipment to carry out signal measurement correctly, the performance of data transmission is improved, and the complexity of the user equipment is reduced when the number of the antenna units is large.

A portable device and associated method are described for use with a system in which a locating signal is transmitted from within the ground during an operational procedure. The locating signal includes a transmission frequency that is selectable from a group of discrete transmission frequencies in a frequency range and the region includes electromagnetic noise that can vary. The portable device includes a receiver having a bandwidth that includes the transmission frequency range and is operable for measuring the electromagnetic noise in the transmission frequency range to establish a frequency content of the electromagnetic noise for use in selecting one of the discrete transmission frequencies that is subsequently transmitted as the locating signal during the operational procedure. The locating signal can be transmitted from a boring tool, a pullback arrangement or an inground cable. A predicted maximum operational depth for a transmitter can be determined prior to the operational procedure.

A measuring apparatus and method for measuring dynamic parameters in a driven bicycle wheel are described. Parameters which are measured are; driven torque, angular velocity, angular acceleration, lateral angular acceleration, and applied power of the driven wheel. The measuring apparatus is affixed to the rear driven cog(s) of a bicycle wheel. One or more strain sensing elements affixed to the rear driven cog(s) detect the applied driven torque. Three or more acceleration sensing integrated circuits are used to determine angular velocity, angular acceleration, and lateral angular acceleration of the driven rear cog. These circuits reside on the primary electronics board and are affixed to the rear driven cog; hence they rotate along with the driven rear cog. Power applied to the driven wheel is derived from the torque and angular velocity measurements of the invention. These performance variables will aid a competitive cyclist to evaluate and observe progress in his or her physical training.

A method for determining rotational offset between first and second gravity measurement devices deployed on a downhole tool is disclosed. The method includes positioning the tool in a previously surveyed section of a borehole that provides a historical survey including at least three previously surveyed azimuthal reference points and utilizing the gravity measurement devices to determine local azimuths at three or more sites in the previously surveyed section of the borehole. The method further includes comparing local azimuths with the historical survey and determining a rotational offset between the measurement devices that gives a best fit between local azimuths and the historical survey. A system adapted to execute the disclosed method and a computer system including computer-readable logic configured to instruct a processor to execute the disclosed method are also provided.

A measurement apparatus for enumeration of particles or white blood cells in a sample comprises: a holder, which is arranged to receive a sample acquiring device that holds a sample, an imaging system, comprising a magnifying means and at least one digital image acquiring means, said imaging system being arranged to acquire at least one digital image of the sample, and an image analyser, which is arranged to analyse the digital image for identifying particles or white blood cells and determining the number of particles or white blood cells and which is arranged to analyse the digital image for identifying particles or white blood cells that are imaged in focus, determining types of these particles or white blood cells, the types being distinguished by physical features and determining the ratio of different types of particles or white blood cells.

An enhancement that improves the performance of test and measurement equipment such as digital oscilloscopes and arbitrary waveform generators through the use of compression and decompression is described. The present invention is particularly effective for compressing and decompressing high-speed, bandlimited analog signals that are not appropriately or cannot effectively be compressed by prior art speech, audio, image, and video compression algorithms due to various limitations of such prior art compression solutions. The present invention improves digital oscilloscopes by compressing the sampled version of an analog waveform under observation in real time, allowing a significantly longer duration of the waveform to be stored in the oscilloscope's capture memory, when compared with the duration of the same signal's uncompressed waveform stored in the same memory. Similarly, the present invention improves arbitrary waveform generators by storing a compressed version of a desired arbitrary waveform, instead of the uncompressed version of the arbitrary waveform, in the signal generator's waveform memory. During signal generation, the compressed waveform is decompressed in real time. The uncompressed waveform drives a D / A converter that generates the desired analog waveform. The present invention's simplicity, and its ability to be implemented using parallel compression and decompression elements, allows its use at the high sampling rates of test and measurement instruments. Using the present invention, storage elements in test and measurement equipment can hold significantly longer waveforms in a fixed amount of memory. Users of the present invention can also determine the proper balance between the fidelity and the duration of the decompressed waveform by adjusting various compression and decompression control parameters.

A system adapted to determine a property of a paving-related material is provided. Such a system comprises a central computing system housing database, such as a geographic information system (GIS). A measuring device for selectively and directly measuring the property of the paving-related material is remotely disposed with respect to the central computing system and operably engaged with a locating device, such as a global positioning system (GPS) device, for determining a location of the measuring device when the property of the paving-related material is selectively measured thereby. A portable handheld computer device is in communication with the measuring device, the locating device, and the central computing system, wherein the handheld computer device is configured to receive data, comprising the measured property of the paving-related material and the corresponding location of the measuring device when the property is selectively measured thereby, from the measuring device and the locating device, and to communicate the data with the central computing system for incorporation of the data into the database. An associated device, apparatus, and method are also provided.

A package measurement apparatus comprising three measurement devices, one for each dimension. Each measurement device comprises a plurality of signal receptor modules. Each module comprises a row of signal receptor, and a signal energy source. In a first calibration step, the outputs of each receptor are standardized to reference maximums and minimums. In a second calibration step, calibration sets of receptor outputs are created and recorded. During measurement, a measurement set of receptor outputs is obtained and matched with a calibration set of receptor outputs to determine the dimension of an object.

An optical detector (110) is disclosed. The optical detector (110) comprises: —an optical sensor (112), having a substrate (116) and at least one photosensitive layer setup (118) disposed thereon, the photosensitive layer setup (118) having at least one first electrode (120), at least one second electrode (130) and at least one photovoltaic material (140) sandwiched in between the first electrode (120) and the second electrode (130), wherein the photovoltaic material (140) comprises at least one organic material, wherein the first electrode (120) comprises a plurality of first electrode stripes (124) and wherein the second electrode (130) comprises a plurality of second electrode stripes (134), wherein the first electrode stripes (124) and the second electrode stripes (134) intersect such that a matrix (142) of pixels (144) is formed at intersections of the first electrode stripes (124) and the second electrode stripes (134); and —at least one readout device (114), the readout device (114) comprising a plurality of electrical measurement devices (154) being connected to the second electrode stripes (134) and a switching device (160) for subsequently connecting the first electrode stripes (124) to the electrical measurement devices (154).

Methods of reducing the effects of measurement device artifacts on a measurement of a sample are presented. A number of reference measurements performed with the measurement device are observed to identify reference independent components of the reference measurements. The variations of the reference independent components are used as surrogates for possible artifacts of the measurement device. A number of measurements of subjects similar to the sample are observed, and similarity components of the subject measurements that vary in a manner similar to the reference independent components may be identified. The sample measurement is then adjusted to remove at least part of the similarity components that correspond to the variations in the reference independent components. The adjustment of the sample measurement is thereby improved by reducing the effects of artifacts of the measurement device.

The invention discloses a device for testing the durability of a water pressure resistant grouted rock, which comprises a pressure chamber, a control cabinet, heating equipment, pressurizing equipment, measuring equipment and accessory equipment, wherein the heating equipment can supply a stable heat source for the pressure chamber; the pressurizing equipment can provide confining pressure and osmotic pressure for the pressure chamber; the pressure chamber can apply an axial pressure by means of a universal test, is corrosion resistant and can realize annular and vertical penetration tests of three kinds of standard samples of different dimensions at different temperatures and pressures; the measuring equipment can realize accurate measurement of temperature, pressure and flow rate; and the control cabinet can realize the accurate control of pressure and temperature. The device can be used for indoor researches on the durability of tunnel water pressure resistant grouted rock or dam impervious curtain in an environment of high-water-pressure and corrosive environment, and at the same time, realizes the researches on the change rule of the permeability of a rock sample under the coupled actions of a temperature field, a seepage field, a stress field and a chemical field.

The invention discloses a converter smelting endpoint molten steel carbon and temperature control system and a method thereof, and belongs to the technical field of converter steelmaking automation control. The converter smelting endpoint molten steel carbon and temperature control system comprises hardware equipment and a software processing module, and is characterized in that: the hardware equipment comprises converter sublance measuring equipment and converter exhaust gas analysis equipment; the software processing module comprises a converter production process data acquisition module, a converter smelting endpoint carbon calculation module, a converter smelting endpoint temperature calculation module, and an information display module; the software processing module is operated on a computer; and the hardware equipment and the software module are connected with a converter production process database through an Ethernet to realize data interaction. The control system and the method thereof have the advantages of accurately controlling the converter smelting endpoint molten steel carbon content and the molten steel temperature, along with stable operation, cost conservation, and wide application range.

A system and method of detecting, locating, geolocating and providing diagnostics on electronic devices includes use of emission detection apparatus, information collected over a network and template containing emission signatures. Collected unintended emissions are compared to an emission signature in the template preferably constructed from the information collected on the network. Using the known location of the electronic device, the emissions measurement device is then used to detect and identify other devices in the vicinity of the electronic device that is connected to the network. The emission detection apparatus includes a high sensitivity receiver for receiving and analyzing electronic emissions. The network collection apparatus could be any software manifestation known in the art for collecting information about a device such as a cookie or online fingerprinting or a hardware based collection mechanism.