سنسور و مبدل سنسور و ترانسمیتر فشار

Product Attributes

Introduction

The 24PC series pressure sensors are four active element piezoresistive bridges. When pressure is applied, the resistance changes, and the 24PC provides an output signal proportional to the applied pressure. Gauge pressure is measured relative to ambient pressure. As the applied pressure increases, the differential voltage V2 - V4 increases; as the pressure decreases, the differential voltage V2 - V4 decreases. Differential sensors provide a differential voltage proportional to the pressure difference between ports P2 and P1. As DP = P2 - P1 increases, the differential voltage V2 - V4 increases; as DP = P2 - P1 decreases, the differential voltage V2 - V4 decreases. The sensor measures pressure relative to a vacuum reference. As pressure increases, the differential voltage V2 - V4 becomes more negative.

Features

• Uncompensated pressure sensor excited by constant current rather than voltage, with temperature compensation characteristics over the full span.
• Constant current excitation also offers the additional benefit of temperature measurement. When driven by a constant current source, the terminal voltage of a silicon pressure sensor increases with rising temperature. This voltage increase not only compensates for the full span but also indicates the sensor temperature.