航天工业部上海801研究所利用石英晶体的正压电效应,制成一种压力与电荷转换的有源式传感器—FcCY_4石英晶体动态压力传感器。这种传感器机械性能优越,没有自发的极化效应和热释电现象,灵敏度十分稳定。由于它线性特点好,因而滞后效应小,使用温度范围大,具有频响宽,体积小,耐腐蚀, 801 Shanghai Institute of Aerospace Industry, the use of quartz crystal positive piezoelectric effect, made of a pressure and charge conversion active sensor-FcCY_4 quartz crystal dynamic pressure sensor. This sensor has superior mechanical properties, no spontaneous polarization effects and pyroelectric phenomena, the sensitivity is very stable. Because of its linear characteristics, and thus lag effect is small, the use of temperature range, with a wide frequency response, small size, corrosion resistance,