由于压力不同,薄壁圆筒的固有振动频率也不同。利用这一原理,研制了圆筒谐振式压力传感器。下面就其工作原理、性能以及特点作一概述。 近年来,随着计算机的飞速发展,计算机与传感器的接口已成为一个重要问题,因此,人们广泛报导了高精度的A/D变换器。由于圆筒式压力传感器为频率输出式,所以用简单的数字电路容易实现约24bit的变换, Due to the different pressures, the inherent vibration frequency of the thin-walled cylinder is also different. Using this principle, developed a cylindrical resonant pressure sensor. Here’s a summary of its working principle, performance and features. In recent years, with the rapid development of computer, the interface between computer and sensor has become an important issue. Therefore, it is widely reported that A / D converter with high accuracy. Since the cylinder pressure sensor is a frequency output type, it is easy to realize the conversion of about 24 bits with a simple digital circuit,