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Method and device for measuring speed and acceleration of shot

A measurement method and acceleration technology, which are applied in directions such as the use of inertial force for acceleration measurement, the use of devices that measure the time required to move a certain distance, the radio wave measurement system, etc., can solve problems such as the inability to measure the acceleration of projectiles, and achieve anti-interference ability. Strong and stable effect

Inactive Publication Date: 2013-01-02
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention belongs to light curtain target speed measurement, but the traditional light curtain target speed measurement device cannot measure the acceleration of the projectile

Method used

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  • Method and device for measuring speed and acceleration of shot
  • Method and device for measuring speed and acceleration of shot
  • Method and device for measuring speed and acceleration of shot

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Experimental program
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Embodiment Construction

[0025] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0026] The measurement principle of the present invention fixes the first light receiver 6, the second light receiver 7 and the third light receiver 8 on the track of the projectile 2 and maintains a certain distance, correspondingly on the other side of the pipeline 1, The first light transmitter 3 , the second light transmitter 4 and the third light transmitter 5 are fixed parallel to the first light receiver 6 , the second light receiver 7 and the third light receiver 8 . When the projectile flies past the first light receiver 6, the first light receiver 6 cannot receive the light emitted by the first light transmitter 3, and the photoelectric conversion amplifier circuit 9 converts the light signal into an electrical signal, and transmits it to the processing unit. When the projectile continues to travel and passes through the second light receiver 7, accordi...

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Abstract

The invention relates to a method and a device for measuring speed and acceleration of a shot. The device is characterized by comprising three pairs of light transmitters and light receivers, three photovoltaic conversion amplification circuits and a data processor. The three pairs of light transmitters and light receivers are arranged on two sides of a shot running track, a certain distance is reserved between each pair of light transmitter and light receiver, each light receiver is connected with one photovoltaic conversion amplification circuit, and the three photovoltaic conversion amplification circuits are connected with the data processor. Transmitting terminals of the light transmitters are aligned with the shot running track and are parallelly opposite to the light receivers, and a light path and the shot running track form a right angle. According to the method and the device for measuring the speed and the acceleration of the shot, the speed and the acceleration of the shot can be measured, and due to the fact that the input quantity is the switching value, a measuring system is high in anti-interference and stability.

Description

technical field [0001] The invention belongs to a speed measuring method and a device thereof, in particular to a method and a device for measuring the velocity and acceleration of a projectile. Background technique [0002] Shot peening is one of the effective methods to reduce fatigue of parts and improve service life. Shot peening is to spray high-speed shot stream onto the surface of the spring to make the surface of the spring plastically deform and form a strengthening layer with a certain thickness. High residual stress, due to the existence of compressive stress on the surface of the spring, can offset part of the stress resistance when the spring is under load, thereby improving the fatigue strength of the spring. [0003] Classified according to the working characteristics of the instruments and devices used, the projectile velocity measurement methods can be divided into canopy target velocity measurement, coil target velocity measurement, light curtain target vel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P3/68G01P15/03
Inventor 张贤杰王俊彪曹小宝司朝润周建强潘爱刚周若飞
Owner NORTHWESTERN POLYTECHNICAL UNIV
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