Acceleration recording apparatus used for ejection test under large impact

A recording device and acceleration technology, applied in the direction of measuring acceleration, speed/acceleration/shock measurement, speed/acceleration/shock meter details, etc., can solve the damage that cannot meet the large impact requirements of the projectile ejection test and does not consider the performance of the measuring device and other problems, to achieve the effect of saving test costs, reducing impact, and increasing earthquake resistance

Inactive Publication Date: 2017-03-29
SHAANXI AEROSPACE TIMES NAVIGATION EQUIP CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Ordinary accelerometers are mainly used in shock and vibration detection records during transportation, fragility tests, and impact tests on train coupler connections. Although they can record the acceleration of the impact process, they are far from meeting the large impact requirements of the shell ejection test

Method used

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  • Acceleration recording apparatus used for ejection test under large impact
  • Acceleration recording apparatus used for ejection test under large impact
  • Acceleration recording apparatus used for ejection test under large impact

Examples

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Example Embodiment

[0027] The present invention will be further described through the following embodiments.

[0028] Please refer to Figure 1 to Figure 8 , The acceleration recording device for ejection test under large impact includes: a base, a processing circuit board, an accelerometer circuit, a power monitoring circuit, an acquisition and processing circuit, a sensor circuit, a signal processing circuit, and a memory circuit; the power monitoring circuit Including power detection chip, through the processor to issue control commands to obtain the battery voltage and current parameters.

[0029] The acquisition and processing circuit includes a processor chip, the processor chip is an ARM core 32-bit processor, the highest operating frequency is 72MHz, the analog output from the accelerometer sensor is filtered and collected through the processor's own ADC And temperature compensation processing, the compensation result is written into the external expansion FLASH through SPI.

[0030] The sens...

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PUM

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Abstract

The invention provides an acceleration recording apparatus used for an ejection test under large impact. The apparatus comprises a pedestal, a processing circuit board, an accelerometer circuit, a power supply monitoring circuit, an acquisition processing circuit, a sensor circuit, a signal setting circuit and a memory circuit, wherein the power supply monitoring circuit comprises a power supply detection chip and emits a control command through a processor to obtain voltage and current parameters of a battery. A high-strength titanium-magnesium alloy material is employed, the overall antivibration capability of the apparatus is enhanced, dampers of an acquisition processing circuit board are installed on a base support, and thus impact caused to circuit components in an impact process is further reduced. Therefore, under the condition of the large impact, the acceleration recording apparatus can be repeatedly used for carrying out an accurate axial acceleration measurement on the ejection test, after measurement ends, measurement data is read through host software, through multiple application under the condition of the large impact, the progress of the ejection test is accelerated objectively, and the test cost is also saved.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of acceleration recording devices, in particular to an acceleration recording device for ejection tests under large impacts. [0003] 【Background technique】 [0004] The ejection test acceleration recording device is used to measure the axial acceleration of the projectile when the projectile is ejected vertically, so the accuracy and reliability of the acceleration recording device directly affect the accuracy of the acceleration measurement when the projectile is ejected. [0005] Ordinary accelerometers are mainly used in shock and vibration detection records during transportation, fragility tests, and impact tests on train coupler connections. Although they can record the acceleration of the impact process, they are far from meeting the large impact requirements of the shell ejection test. . However, some existing studies on the measurement of the axial acceleration of projectile ejection are only at the ...

Claims

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Application Information

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IPC IPC(8): G01P15/00G01P1/12
CPCG01P15/00G01P1/127
Inventor 姚兴波陈涛
Owner SHAANXI AEROSPACE TIMES NAVIGATION EQUIP CO LTD
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