Method for converting PR9270 type vibration exciter into piezoelectric accelerometer calibrator

A piezoelectric accelerometer and vibration exciter technology, which is applied in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, fluid using vibration, etc., can solve the problem of high idle rate and device utilization Not advanced question

A piezoelectric accelerometer and vibration exciter technology, which is applied in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, fluid using vibration, etc., can solve the problem of high idle rate and device utilization Not advanced question

CN103513060AInactive Publication Date: 2014-01-15洛阳市重冶矿山机械有限公司
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  • Method for converting PR9270 type vibration exciter into piezoelectric accelerometer calibrator
  • Method for converting PR9270 type vibration exciter into piezoelectric accelerometer calibrator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] 1. The whole device has three parts: install the vibration platform (2), the cantilever beam (13), adjust the vibration spring (5) and assemble the support spring (1), and prepare the corresponding amplitude measurement device.

[0009] 1.1 Vibration table: In order to reduce the quality of the movable part, the vibration table (2) can be made of hard aluminum alloy, and fixed on the ejector rod of the vibrator, the accelerometer to be calibrated (14), and the measuring light slit with three screws (4) and the standard accelerometer are fixed on the table; in order to obtain greater acceleration, a rectangular cantilever beam (13) can be made and fixed on the vibrating table. When the cantilever beam (13) resonates, a greater acceleration can be generated.

[0010] 1.2 Adjusting the vibration spring (5) and assembly support spring (1), the PR9270 vibrator has two sets of vibration springs, and the preload of each set is 45N. When two sets of springs are installed in the...

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Abstract

Provided is a method for converting a PR9270 type vibration exciter into a piezoelectric accelerometer calibrator. Through the method that two supporting bearings of the PR9270 type vibration exciter are reversely arranged, an adjusting vibrating spring is further arranged, and a set of vibrating table board (or a cantilever beam) is arranged at the top end of a shaft rod, and peripheral detection equipment, the vibration exciter is remanufactured into the piezoelectric accelerometer calibrator. Through the method, measurement precession can reach 4%, and convenience, practicality and economic performance are achieved. Meanwhile, the calibrator can be restored to the vibration exciter.

Description

technical field [0001] The invention relates to the calibration field, in particular to a method for refitting a PR9270 vibrator into a piezoelectric accelerometer calibrator. Background technique [0002] The exciter is a device that stimulates vibration. In my country, there are many industrial and mining enterprises and research units that use exciters, but the utilization rate of these devices is not high, and the idle rate is also high. Contents of the invention [0003] Aiming at the appeal problem, the present invention utilizes the PR9270 type vibrator, by installing its two support springs in reverse, installing an adjustment vibration spring, and installing a set of vibrating table tops (or cantilever beams) on the top of the shaft, plus Peripheral testing equipment, the vibrator is transformed into a piezoelectric accelerometer calibrator. [0004] The beneficial effects of the invention are: the measurement accuracy of this method can reach 4%, and it is conve...

Claims

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Application Information

Patent Timeline
15 Jan 2014
Publication
CN103513060A
IPC
G01P21/00; B06B1/10
Inventors
王亚龙; 牛君乐