论文部分内容阅读
压力-电荷放大传感器是把高灵敏度的压电传感部分与电荷放大部分结合成一个整体的传感器(如图1所示)。因而噪声小、温度稳定性好、输出阻抗低,有利于低频、低振级振动的测量。 DYG-1型低频压电加速度计是压电-电荷放大传感器。它主要由压电部分(包括质量块、芯柱、压电陶瓷)和电荷放大部分组成,两部分密封在同一外壳内(见图2)。它的结构简单、坚实牢靠、防潮性能好,而且能方便地进行较远距离(约100米)的垂直与水平分量的测量。
The pressure-charge amplification sensor is a sensor that combines a high-sensitivity piezoelectric sensing part with a charge amplification part (Figure 1). Therefore, noise, temperature stability, low output impedance, is conducive to low-frequency, low vibration level vibration measurement. DYG-1 low frequency piezoelectric accelerometer is a piezoelectric-charge amplification sensor. It is mainly composed of piezoelectric parts (including mass, core column, piezoelectric ceramic) and charge amplification part, the two parts sealed in the same housing (see Figure 2). Its simple structure, solid and reliable, moisture-proof performance, but also easy to carry more long-distance (about 100 meters) vertical and horizontal component measurements.