Shock-wave pressure-sensor on-site inspection and sorting method

Abstract

The invention provides a shock-wave pressure-sensor on-site inspection and sorting method. The method is characterized in that shock wave overpressure values with different distances are pre-estimated and inspected and sorted pressure sensors of suitable measuring ranges are determined; a bomb holding frame at a detonation center is used to fix a standard explosion signal source; air arrangement sensor installation devices are arranged at each distance; a standard pressure sensor and the inspected and sorted pressure sensors are installed on the air arrangement sensor installation devices; explosion shock wave signals of the standard explosion signal source are collected; 50% inspected and sorted pressure sensors are rejected, wherein a deviation value of test data of the 50% inspected and sorted pressure sensors and the standard pressure sensor on each air arrangement sensor installation device is large. By using the method in the invention, rapid and reliable on-site inspection and sorting of a lot of shock wave pressure sensors can be effectively realized; consistency of the sensors in a same measurement scope can be assessed; the size of the installation devices are small and the weight is light; on-site installation is easy and the method is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of explosion damage tests and relates to an on-site selection method for shock wave pressure sensors in an explosion environment, which can be used for the detection and selection of explosion shock wave overpressure test sensors. Background technique [0002] The shock wave overpressure generated during the explosion is often used as an important index to evaluate the power of the explosion. However, through a large number of actual test data, it is found that the comparability of the shock wave pressure values ​​measured by different measurement units is poor. The main reasons for the analysis are: First, the test The pressure sensors used in the test are all completed under static calibration conditions, which cannot truly reflect the dynamic corresponding characteristics of the sensor; second, in order to suppress or reduce the parasitic effect, necessary protective measures have been taken for the sensor...

AI Technical Summary

Problems solved by technology

The on-site calibration methods of shock wave pressure introduced in the two related materials both use standard TNT explosives to explode on site and calibrate the pressure sensors arranged on the ground; however, they are both simple and general introductions to the calibration methods. There is no guidance, and the unevenness of the ground at the explosion site is unavoidable, and the unevenness is high, especially for large-equivalent explosions. The sensor range on the ground is wider and the height difference is larger. The field calibration method error of the pressure sensor on the ground large, poor maneuverability

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