가스 흐름 센서 다이 XGZF9304
애플리케이션
- 송풍기,Oxygen Generator, CPAP 장치, Anesthesia, Critical care equipment etc,.
- HVAC, 공기 청정기, Environmental monitoring etc,.
- Fuel cell control and more air flow control and measurement
소개
XGZF9304 flow sensing chip is a thermodynamically based measurement of gas flow through the surface of the chip. All pads are pulled to one side for ease of packaging. In addition a low heat source resistor is used so that it can operate at voltages as low as 5V, so the chip has low power consumption. The sensitive area of the chip consists of a heating resistor and two sets of thermopiles. The thermopiles are distributed at the two ends of the heating resistor as upstream and downstream, when a gas flows through, the upstream heat is taken away and cooled, and the downstream is heated up by heat delivery, and the heat distribution is no longer symmetrical, and the difference between the output voltage of the upstream and downstream thermopiles is used as the output of the sensor, which improves the measurement accuracy and reduces the error.
Compared with traditional MEMS flow sensors, XGZF9304 has two key advantages. The first is the replacement of the thermistor with a thermopile temperature measurement element of special structural design, which can realize ultra-low noise signal, improve measurement accuracy and simplify peripheral circuit. Secondly, traditional MEMS flow sensing chips use probes to measure, it is easy to destroy the original flow field, so that the measurement accuracy is reduced, while the XGZF9304 can be placed in the manifold, reducing the chance of contamination of the chip surface.
치수 (단위:mm)
More information about XGZF9304, 데이터 시트를 참조하십시오 CFSENSOR에 문의하십시오
