Proposed Design for a Differential Pressure Gage to Measure Dynamic Pressure in Blast Waves

Résumé du livre

The current technique for determining dynamic pressure in blast waves is subject to large errors below incident shock over pressures of 69 kPa (10 psi). It is shown that if a single pressure-sensing element can be used to measure the differential pressure between stagnation and side-on overpressures, then dynamic pressure can be determined with much less error. A design for a differential pressure gage is presented. A particular diaphram size and material are proposed, and several diaphram deflection-sensing techniques are indicated. The frequency response of the gage seems adequate for measurements of blast waves from large HE charges. (Author).