120AA-00001RBJ  绝对电容压力计  测量压力的变化

概述

120AA-00001RBJ Baratron® 加热高精度绝对电容压力计具有世伟洛克® 4 VCR® 母接头、集成信号调节器和控制在 45°C 的传感器温度，可实现 1 Torr 满量程压力测量，读数精度为 ±0.08%。

电容压力计是一种常用的压力测量仪器，其工作原理是基于电容的变化来测量压力的变化。电容压力计由传感器和测量电路两部分组成，其中传感器部分负责感应压力的变化，测量电路部分则负责将感应到的电容变化转换成可读的压力值。

120AA-00001RBJ电容压力计具有精度高、稳定性好、易于维护等优点，因此在工业自动化、气体分析、环保监测等领域得到广泛应用。同时，由于电容压力计的测量范围较广，可以根据不同的应用场景选择不同的型号和规格。

120AA-00001RBJ需要注意的是，在使用电容压力计时，应避免高温、低温、腐蚀等恶劣环境的影响，同时要进行定期校准和维护，以保证测量的准确性和可靠性。

电容压力传感器的工作原理是基于电容变化的原理。当被测物体施加压力时，活动板会发生形变，从而使电容值发生变化。传感器的电路会根据电容变化来计算被测压力大小。

120AA-00001RBJ电容压力传感器通常由两个平行的金属薄膜电极组成，中间夹有一个空气或介质填充的腔体。其中一个电极固定不动，称为固定电极；另一个电极可随压力的变化而移动，称为可动电极。当没有压力施加到传感器时，两个电极之间的空气或介质形成一个固定的电容。当压力施加到传感器上时，可动电极会发生微小的位移，导致电容值发生变化。

120AA-00001RBJ  绝对电容压力计  测量压力的变化

summarize

The 120AA-00001RBJ Baratron® Heated high precision Absolute Capacitance manometer features a Swagelok ® 4 VCR® female connector, integrated signal regulator, and sensor temperature control at 45°C for 1 Torr full scale pressure measurement with a reading accuracy of ±0.08%.

Capacitance manometer is a commonly used pressure measuring instrument, its working principle is based on the change of capacitance to measure the change of pressure. The capacitance manometer is composed of a sensor and a measuring circuit. The sensor part is responsible for sensing the pressure change, and the measuring circuit part is responsible for converting the capacitance change into a readable pressure value.

120AA-00001RBJ capacitance manometer has the advantages of high precision, good stability and easy maintenance, so it is widely used in industrial automation, gas analysis, environmental monitoring and other fields. At the same time, due to the wide measuring range of the capacitive manometer, different models and specifications can be selected according to different application scenarios.

It should be noted that in the use of capacitive pressure timing, the impact of high temperature, low temperature, corrosion and other harsh environments should be avoided, and regular calibration and maintenance should be carried out to ensure the accuracy and reliability of the measurement.

The working principle of the capacitive pressure sensor is based on the principle of capacitance change. When the pressure is applied to the measured object, the movable plate will be deformed, so that the capacitance value changes. The circuit of the sensor calculates the measured pressure based on the capacitance change.

The 120AA-00001RBJ capacitive pressure sensor typically consists of two parallel metal thin film electrodes with an air - or media-filled chamber sandwiched between them. One of the electrodes is fixed and is called a fixed electrode; The other electrode can move with the change of pressure, called the movable electrode. When no pressure is applied to the sensor, the air or medium between the two electrodes forms a fixed capacitance. When pressure is applied to the sensor, the movable electrode will shift slightly, causing the capacitance value to change.