CSM-015G-LF

Introduction

CSM-015G-LF is a type of pressure sensors, transducers, commonly used in the industrial, automotive, medical, and aerospace industries. It was designed by AVTECH Electronics Corporation in the late 1980s. This device is a highly reliable and accurate pressure sensor and transducer, which uses a modified Wheatstone bridge circuit to measure pressure. It operates on linear, differential, dual or analog voltage outputs.

Application Field

CSM-015G-LF can be used in various industrial and automotive applications such as vacuum testing, component testing, fuel tank measurement, pneumatic control and automobile cabin pressure monitoring systems. It is also used in aerospace applications for fuel pressure measurement, navigation systems’ pressure sensors and air and gas pressure monitoring systems. In medical applications, it is used in ventilators, pressure measuring systems and respirometers for precise readings.

Working Principle

The CSM-015G-LF consists of a differential pressure sensor which is hooked up with a four-terminal Wheatstone bridge circuit to measure pressure. Its measurement accuracy can be adjusted with the help of a calibration capacitance circuit, also known as the differential capacitance bridge. This circuit is highly sensitive to the fluctuations in the pressure, which helps to measure the true pressure value. The bridge circuit in the device has four resistors which are connected in a symmetrical manner, thus making the bridge trace an approximate diamond-shaped pattern.

The differential pressure sensor in the device is placed between two closed reference chambers. When subjected to pressure fluctuations, the differential pressures sensors move, resulting in the modification of the bridge circuit parameters. The changes in the bridge circuit parameters create an imbalanced voltage contrast between the two terminals near the pressure sensors. The imbalanced voltage contrast is then processed by an internal data processor and transmitted to the output interface. This output signal is then further processed to determine the actual pressure value.

Conclusion

The CSM-015G-LF is a highly reliable and accurate pressure sensor and transducer which is used in various industries and applications. It uses a modified Wheatstone bridge to measure pressure. This bridge has four symmetrically connected resistors to approximate a diamond-shaped pattern. The differential pressure sensor in the device is placed between two closed reference chambers and it helps to measure the true pressure value.