Verification method of bullet velocity measuring instrument
A speedometer and bullet technology, applied in the field of bullet speedometer verification, can solve the problem of no national verification regulations in the field of measurement, and achieve the effects of objective and true verification results, comprehensive verification results, and wide verification scope.
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[0030] The implementation method of the present invention will be specifically described below in conjunction with the accompanying drawings.
[0031] like figure 1 As shown, the bullet speedometer measures speed through the internal light-sensitive trigger device (generally two sets of hollow apertures or light targets). When the measured object passes through the light-sensitive trigger device at high speed, due to When the surface is blocked by the passing object, the back-end electronic device that triggers the light-sensitive trigger device generates a pulse signal (positive pulse or negative pulse).
[0032] When the bullet passes through the first group of light-sensing trigger devices, a trigger signal is generated, which transmits the pulse signal to the time interval measurement unit inside the instrument through the internal signal line of the instrument and triggers the timing of the instrument; when the bullet passes through the second group of light-sensing trigg...
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