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Mini acceleration meter continuous speed measurement impact correction method and device

A micro-accelerometer and speed measurement technology, which is applied in the testing/calibration of speed/acceleration/shock measuring equipment, measuring devices, speed/acceleration/shock measurement, etc., and can solve problems such as acceleration

Inactive Publication Date: 2005-11-09
INST OF MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

This method can only obtain the change in velocity from the initial acceleration to the end moment, so a shock calibration process can only obtain the sensitivity under this acceleration

Method used

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  • Mini acceleration meter continuous speed measurement impact correction method and device
  • Mini acceleration meter continuous speed measurement impact correction method and device
  • Mini acceleration meter continuous speed measurement impact correction method and device

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Embodiment Construction

[0030] The continuous velocity measurement shock calibration method and its device will be described in detail below in conjunction with the accompanying drawings.

[0031] The shock calibrating device for continuous speed measurement of the present invention comprises a spring-type micro-accelerometer calibrating shock device, a magnetoelectric high-frequency shock speed sensor, a transient waveform memory, and an amplifier. The connection method is as follows: the magnetoelectric high-frequency shock velocity sensor is placed on the stage of the spring calibration shock device, the micro-accelerometer to be calibrated is placed on the coil support of the magnetoelectric high-frequency shock velocity sensor, and the micro-acceleration to be calibrated The signal of the gauge is connected to the transient waveform memory through the amplifier through the signal cable, and the signal of the magnetoelectric high-frequency impact speed sensor is connected to the transient waveform...

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Abstract

A method for the impact calibration of microaccelerometer by continuous speed measurements features that a special speed sensor is used to directly measure the instant speed of microaccelerometer for obtaining continuous speed variation values in an impact calibration procedure, and in turn its continuous sensitivities and its linearity. Its calibrating equipment is composed of a spring-type impact unit, a magnetoelectric HF impact speed sensor, a transient waveform memory and an amplifier.

Description

technical field [0001] The invention belongs to a micro accelerometer measuring shock calibration method and a device. Background technique [0002] At present, regarding the shock calibration of accelerometer sensitivity, the international standard ISO5347 / 0-1987 and the national standard GB / T13823.1-93 start with measuring the total velocity change during the shock calibration process, and install the accelerometer to be calibrated directly on the On an anvil that can move along a guide device (such as a guide rail or a guide cylinder), when the anvil is subjected to the impact force of the loading device, it turns from a static state to an accelerated state, and its final final velocity is the total speed formed by the pulse acceleration. The amount of speed change. The key to this approach is reliable speed measurement technology. The existing speed measurement method is mainly light cutting method. This method can only obtain the change in velocity from the initial a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P21/00
Inventor 张泰华郇勇杨业敏
Owner INST OF MECHANICS CHINESE ACAD OF SCI
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