42results about How to "Enables indirect measurements" patented technology

The invention relates to an inspection device used in the sliding rail production process, in particular to a sliding rail outer rail measuring device. The sliding rail outer rail measuring device comprises a base, wherein an end blocking plate and a measuring scale are respectively fixed at two ends of the base surface, a sliding rail is fixedly arranged on the upper surface of the base, two ends of the sliding rail are respectively connected with the positions of the end blocking plate and a base plate of the measuring scale, a measuring table and a slide block are arranged on the sliding rail in a sliding mode, a second measuring rolling wheel and a third measuring rolling wheel are fixedly arranged on one side of the upper surface of the measuring table close to the slide block, and a connection line formed by the second measuring rolling wheel and the third measuring rolling wheel is parallel to the long side of the measuring table. A first measuring rolling wheel and a measuring blocking plate are fixed on the top face of the slide block, the end of a measuring rod of the measuring scale abuts against the measuring blocking plate, and a spring is arranged between the measuring table and the slide block. The sliding rail outer rail measuring device can conveniently and quickly measure whether a sliding rail outer rail meets fixed specification parameters or not.

The invention relates to an inspection device used in the sliding rail production process, in particular to a sliding rail outer rail measuring device. The sliding rail outer rail measuring device comprises a base, wherein an end blocking plate and a measuring scale are respectively fixed at two ends of the base surface, a sliding rail is fixedly arranged on the upper surface of the base, two ends of the sliding rail are respectively connected with the positions of the end blocking plate and a base plate of the measuring scale, a measuring table and a slide block are arranged on the sliding rail in a sliding mode, a second measuring rolling wheel and a third measuring rolling wheel are fixedly arranged on one side of the upper surface of the measuring table close to the slide block, and a connection line formed by the second measuring rolling wheel and the third measuring rolling wheel is parallel to the long side of the measuring table. A first measuring rolling wheel and a measuring blocking plate are fixed on the top face of the slide block, the end of a measuring rod of the measuring scale abuts against the measuring blocking plate, and a spring is arranged between the measuring table and the slide block. The sliding rail outer rail measuring device can conveniently and quickly measure whether a sliding rail outer rail meets fixed specification parameters or not.

The invention provides a method for processing the compressor impeller of a VTR series supercharger, comprising the steps of: a. the inner hole of the shaft of the impeller center; b. heat treatment; c. turning the end surface and outer circle of the impeller; d. turning the small end of the impeller and the impeller shaft Facing the inner hole, take the sample ring on the impeller at the same time; e. Inspection; f. Rough turning the small end of the impeller; g. Blades and runners; i. The outer circle of the large end of the finishing impeller; j. The large end of the finishing impeller and the axial inner hole of the impeller; k. Clamping and positioning the impeller on the turning tool, the impeller positioning surface used in the next process of finishing turning ; l. The large end of the impeller and the axial inner hole of the impeller; m. The small end face of the impeller; n. The meridian surface of the impeller and the end face of the blade. This method improves the matching accuracy and sealing performance between the large end surface of the impeller and the air seal, and solves the problem that the original sample ring and the impeller are separated and then heat treated, and the sample ring cannot truly reflect the performance status of the part after heat treatment.

The invention discloses a measuring technology of a gear clearance between a water pump gear and a crankshaft gear. The measuring technology includes the following steps that: the water pump gear is assembled on the rotation shaft of a water pump, a water pump turbine is installed on the rotation shaft through a fastening nut on the water pump turbine, and the water pump is assembled to an engine, and the water pump gear and the crankshaft gear are engaged with each other; the crankshaft of the crankshaft gear is fixedly installed; a first sealing flange at the inlet of the water pump is disassembled, a measurement fixture is concentrically connected onto the fastening nut, the measurement fixture is provided with two scribed lines, and the distance between the two scribed lines is the reference circle diameter of the water pump gear; a second sealing flange at the outlet of the water pump is provided with a supporting mechanism provided with a dial indicator, and the pushing pin of the dial indicator abuts against one of the scribed lines; the dial indicator is zeroed; and the water pump gear is rotated towards the direction of the dial indicator. The measuring technology is simple in measuring process and easy in operation, and can assist in shortening measuring time and improving working efficiency. The measurement of the gear clearance between the water pump gear and the crankshaft gear can be realized through the dial indicator, and measuring accuracy is high.

The invention discloses a method and device for dynamic weighing and estimation of vehicles at a toll station. The left and right sides of the toll station road are respectively equipped with a laser transmitter group and a photoelectric receiver group; the vehicle to be tested first blocks the laser light emitted by the first laser transmitter, and then Block the laser emitted by the second laser transmitter, the MCU control system calculates the speed of the vehicle to be measured before passing the impact force measuring device, and the left and right pressure sensor groups input the signals of the impact force of the left and right wheels into the MCU control system; The speed and impact force of the vehicle to be tested are used as the input of the BP artificial neural network model, and the mass is used as the output to estimate the vehicle mass; the present invention comprehensively considers the kinetic energy of the moving vehicle and the impact force generated during the collision with the force measuring device. Using road speed bumps to allow vehicles to maintain a certain speed passing through the speed bumps, combined with artificial neural network technology to achieve indirect measurement of vehicle quality and improve toll station traffic efficiency.

The invention discloses a non-contact electromagnetic detection method for discrete-phase non-conductive particles, which belongs to the field of electromagnetic measurement. The principle of the loop is to perform frequency mixing and low-pass filtering on the induced voltage signal and the reference signal, demodulate the phase, and then judge whether the phase corresponding to the induced voltage signal is equal to the phase when no non-conductive particles pass through. If so, the discrete phase is normal, and the next moment Otherwise, it means that the discrete phase has non-conductive particles passing through; through uninterrupted measurement, the phase corresponding to each moment is obtained, and finally, according to the selected threshold τ, each phase value is compared one by one, so as to pass the statistical phase The number of exceptions is obtained by counting the discrete phase non-conductive particles. The invention realizes high-efficiency and real-time detection of non-conductive particles in the flowing discrete phase.

The invention discloses a device and a method for detecting blood pressure and oxyhemoglobin saturation simultaneously, and belongs to the technical field of radial artery detection. By the device and the method, the problems that the blood pressure and the oxyhemoglobin saturation are needed to be detected by using separate sensors at present, so more electronic components of a detection device are needed, and the detection device is complex in structure are solved. The device comprises a cuff, a pulse generator, a photoelectric plethysm sensor, a wave crest retainer, a first high-pass filter, a first low-pass filter, a second high-pass filter, a second low-pass filter, an analog to digital (A / D) converter, a digital to analog (D / A) converter, a computer, an electro-pneumatic converter, an air pump, a power amplifier, and a pressure sensor; and according to the method, the radial artery is used as a detected target, the blood pressure, and the oxyhemoglobin saturation of arterial and venous blood can be detected simultaneously, and the oxyhemoglobin saturation of the venous blood is measured indirectly. The device and the method are suitable for detecting the blood pressure and the oxyhemoglobin saturation simultaneously.

The present invention relates to proportional valves. The intelligent calibration device and method of the steady-state hydraulic power of the proportional valve spool of the present invention is to install the proportional valve with the valve controller on the installation table of the adjustable pressure hydraulic system valve; the calibration circuit board is connected with the valve controller , the D / A module on the circuit board sends a position command to the valve controller to make it control at the target position, and receives the valve core position and the current signal of the proportional valve through the A / D module; the circuit board adopts a single-chip microcomputer or other The microprocessor is programmed, and the program processes the collected signals to obtain the hydraulic force of the measuring point, and sends out the position command signal of the next measuring point until the hydraulic force of all measuring points is measured, at this time, the calibration circuit board communicates through the serial port Or bus communication and other methods to send the measured data to the computer. The solution of the invention can automatically calibrate the size of the hydraulic power without dismantling the proportional valve body.