First, the introduction of diffused silicon sensor Sensor technology, communication technology and computer technology constitute the three pillars of the information industry. In recent years, countries around the world attach great importance to the development and research of transmitter technology, and there are more than 6,000 sensor development and production units in the world. The pressure sensor diffuses a Wheatstone bridge on a single crystal silicon wafer, and the pressure of the measured medium (gas or liquid) changes the resistance value of the bridge wall (piezoresistive effect), generating a differential voltage signal, which is converted into a standard analog signal or digital signal by a dedicated amplifier. Second, the characteristics of the star instrument diffusion silicon pressure sensor Feature 1: The diaphragm isolation technology is adopted Feature 2: integrated chip, wide voltage power supply Feature 3: Small structure, easy installation Feature 4: Interception design, strong anti-interference ability, lightning protection Feature 5: Current limiting, voltage limiting, reverse polarity protection (current output only) Feature 6: high precision, good stability, fast response speed, impact resistance Third, the performance parameters of the star sensor CYYZ11 diffused silicon pressure transmitter sensor Measuring medium: liquid or gas (compatible with contact material) Diaphragm material : 316L stainless steel (contact) Pressure range: -100kPa~0~100Mpa Pressure mode: gauge pressure, absolute pressure, negative pressure Output signal: 4~20mA, RS485 Supply voltage : 12~36VDC conventional, 15~36VDC conventional, 3~5VDC customized Accuracy class: 0.1%FS (range≥100kPa customized), 0.25%FS (range≥100kPa default), 0.5%FS (10kPa≤ range<100kPa default)1%FS (range<10kPa default) Working conditions: medium temperature -40~85°C ambient temperature -40~85°C Ambient humidity : 0%~95%RH (non-condensing, non-condensing) Temperature compensation: -10~70°C Seismic performance : 10g(20…2000Hz) Overload capacity: 200% full scale or 120MPa (minimum) Response frequency: Analog signal output≤ 500Hz, digital signal output≤ 5Hz Stable performance: ±0.1% FS/year Temperature drift: ±0.01%FS/°C (temperature compensation range) Protection class : IP65 (no display) IP54 (with display) Maximum power: Current type≤0.02Us(W) Digital type≤0.015Us(W) Note: Us=supply voltage　Fourth, the application of pressure sensor Pressure sensors are one of the most used measuring devices in automatic control in the petrochemical industry. In large-scale chemical projects, almost all pressure sensor applications are included: differential pressure, absolute pressure, gauge pressure, high pressure, differential pressure, high temperature, low temperature, as well as remote flange pressure sensors of various materials and special processing. The diffused silicon sensors produced by Star Meter Manufacturing Co., Ltd. are distributed in various fields and have a wide range of applications. In addition to intelligent applications in transportation, home appliances, medical care, and environmental protection, sensors are also used in remote battlefield monitoring in the military field, radar operating system, production control and safety protection in the industrial field, fine management in the agricultural field, and agricultural product production. For any questions such as product consultation, product customization, agent, technical inquiry, quotation, etc., please contact Xingyi hotline: 400-600-4496!