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Impact of Manganin Transducer Protective Medium on Detonator's Output Record Waveform

HAN Xiu-feng,YAN Nan,CAI Rui-jiao Beijing Institute of Technology, Beijing100081, China)  
When measuring the axial output of an explosive element with bottom case by a manganin sensor, a protective medium should be added to the front of the sensor. PMMA and Mylar films are selected to protect the sensor when measuring a No.1 electric detonator. By analyzing the measured waveform hydrodynamically, the following conclusion was obtained: the use of 1 mm PMMA compared better than a 0.05~0.10 mm Mylar film when measuring explosive elements with fragments.
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