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在液体或超声波风洞试验中,有许多相关的临界压力和流量的测量问题需要使用小型、宽量程的、高频的压力传感器。例如,一种风洞试验,它在1～30毫秒的运行时间中具有的测量范围为0.0002～2磅/吋~2(0.000014～0.14公斤/厘米~2)。在超声波研究中所使用的传感器其结构通常是一种带有膜片敏感元件的差动器件。从测量面积也就是在膜片上引出的差动压力杆,增
In liquid or ultrasonic wind tunnel tests, there are many measurement issues related to critical pressures and flow rates that require the use of small, wide-range, high-frequency pressure sensors. For example, a wind tunnel test that has a measurement range of 0.0002 to 2 pounds per square inch (0.000014 to 0.14 kilograms per square meter) over a 1 to 30 millisecond running time. The sensor used in the ultrasound study is usually constructed as a differential device with a diaphragm sensor. From the measurement area is the differential pressure on the diaphragm leads to increase