Acceleration sensor low frequency calibration platform and usage method for the same

A technology of acceleration sensor and calibration table, which is applied in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, instruments, etc., which can solve the problem that the distortion of vibration waveform cannot meet the requirements and is not achievable And other issues

Active Publication Date: 2016-09-28
GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

It can be obtained by calculation, if you want to get 0.1g (0.98m/s) under the condition of 0.1Hz 2 ) acceleration load, the required vibration displacement amplitude is 2.48m, and the total length of the sliding table reaches 4.96m, and such a long

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  • Acceleration sensor low frequency calibration platform and usage method for the same
  • Acceleration sensor low frequency calibration platform and usage method for the same
  • Acceleration sensor low frequency calibration platform and usage method for the same

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with accompanying drawing:

[0043] Such as figure 1 As shown, a low-frequency calibration platform for an acceleration sensor of the present invention includes a disc-type precision centrifuge 1, a turntable 2, a linear guide rail 3 and a slide table 5, the linear guide rail 3 is fixedly installed on the turntable 2 through a guide rail bracket 4, and the slide table 5 is installed On the linear guide rail 3 and can slide along the linear guide rail 3, the diameter of the linear guide rail 3 coincides with the turntable 2, the slide table 5 is an electric slide table or a pneumatic slide table, the rotating shaft of the disc precision centrifuge 1 is a hollow shaft, and the slide table 5 The drive line, control line and signal line used for calibration pass through the hollow shaft of the centrifuge 1 and are connected with the calibrated sensor and the standard sensor through the electric slip ring 6...

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Abstract

The invention discloses an acceleration sensor low frequency calibration platform and a usage method for the same. The acceleration sensor low frequency calibration platform comprises a disc type precision centrifuge, a linear guide rail and a sliding table; the linear guide rail is fixedly installed on a rotation plate of the disc type precision centrifuge through a guide rail support and overlaps with a diameter direction of the rotation plate of the disc type precision centrifuge; and the sliding table is installed on the linear guide rail and can perform reciprocating sliding along the linear guide rail. The invention provides a low frequency calibration device combining the centrifuge and the sliding table. A reference acceleration load is provided to the siding table through the centrifuge and a distance between the sliding table and the rotation center of the centrifuge is regulated through sliding of the sliding table so as to realize the fact that an acceleration load changes according to a sine rule. Finally, on the premise that the travel of the sliding table is not increased, the acceleration sensor low frequency calibration platform and the usage method for the same can achieve extremely low frequency and a large acceleration load and greatly improve signal-to-noise ratio of an output signal of a calibrated sensor.

Description

technical field [0001] The invention relates to a calibration device, in particular to a low-frequency calibration platform for an acceleration sensor and a method for using the same. Background technique [0002] The low-frequency calibration equipment of the acceleration sensor mostly adopts two forms of specially developed low-frequency vibration table and low-frequency slide table, among which the low-frequency slide table is more used because of its larger stroke. The low-frequency sliding table drives the sliding table on the linear guide rail, that is, installs the standard sensor and the sensor to be calibrated on the sliding table, and then drives the sliding table to reciprocate left and right on the linear guide rail, thereby generating a sinusoidal motion over time. The changing acceleration load acts on the sensor on the sliding table, and then the sensor is calibrated. [0003] Whether it is a low-frequency vibrating table or a low-frequency sliding table, the...

Claims

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Application Information

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IPC IPC(8): G01P21/00
CPCG01P21/00
Inventor 吴付岗周怡妃孟念湘王彩霞
Owner GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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