Acceleration sensor testing device and method
A technology of acceleration sensor and testing device, which is applied in the direction of speed/acceleration/shock measurement, measuring device, and acceleration measurement using inertial force. Convenience, simple structure, and simple installation structure
Active Publication Date: 2021-04-20
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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Problems solved by technology
[0003] At present, since the acceleration sensor needs to be rotated during the test, the corresponding fixed part and the rotating part need to be docked, which leads to the complicated structure of the current corresponding test device, and also affects the reliability of the test to a certain extent; in addition , test equipment also needs to provide a stable and reliable test environment (including reliability and accuracy), but the current test equipment is often difficult to achieve
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0032] like figure 1 and figure 2 As shown, the acceleration sensor testing device of this embodiment includes a host computer 1, a servo motor 2, an induction generator 3, a circuit unit 4 and a turntable 5; the output shaft of the servo motor 2 is connected to the induction generator 3, and the turntable 5 is installed on On the output shaft of the servo motor 2, the circuit unit 4 is embedded in the turntable 5, the acceleration sensor 6 to be measured is installed on the circuit unit 4, and the turntable 5 is provided with a counterweight acceleration sensor 502 and a mounting bolt (screw, screw, etc.) Screw hole array 501; with the center of the turntable 5 as a symmetrical point, the acceleration sensor 6 to be measured and the counterweight acceleration sensor 502 are symmetrical about the center of the symmetrical point, and the circu...
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The invention discloses an acceleration sensor testing device and method. The acceleration sensor testing device comprises an upper computer, a servo motor, an induction generator, a circuit unit and a turntable; wherein an output shaft of the servo motor is connected with the induction generator, the turntable is arranged on the output shaft of the servo motor, the circuit unit is embedded into the turntable, a to-be-tested acceleration sensor is arranged on the circuit unit, and the turntable is provided with a counterweight acceleration sensor and a screw hole array; the circuit unit comprises a wireless power supply module and a wireless data sending module, the wireless power supply module is used for wirelessly receiving electric energy of the induction generator and providing the electric energy to the to-be-tested acceleration sensor and the wireless data sending module; an encoder is arranged on the output shaft of the servo motor; the to-be-tested acceleration sensor is connected with the upper computer through the wireless data sending module, and the upper computer acquires the test precision according to the deviation between the acceleration signal and a rotating speed signal output by the encoder. The scheme has the advantages of simple structure, high test reliability and precision and the like.
Description
technical field [0001] The invention mainly relates to the technical field of acceleration sensor testing, in particular to an acceleration sensor testing device and a testing method. Background technique [0002] An acceleration sensor refers to a sensor capable of measuring acceleration. At present, acceleration sensors have been widely used in military, aerospace, geodetic and industrial control and other fields. Various characteristics of the acceleration sensor directly affect its performance, and the characteristics include sensitivity, zero point voltage, input and output impedance, offset voltage and so on. Therefore, the acceleration sensor needs to be tested and calibrated before leaving the factory. [0003] At present, since the acceleration sensor needs to be rotated during the test, the corresponding fixed part and the rotating part need to be docked, which leads to the complicated structure of the current corresponding test device, and also affects the relia...
Claims
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IPC IPC(8): G01P15/08G01P1/00
Inventor 赖伟刘敏胡思聪郑华雄王臻雷江河谭晓辉侯懿孙雷
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD