Silicon miniature pressure sensor applications

Manufactured using micro-machining techniques typical product is a silicon micro- pressure sensors , which are U.S. Japan and Europe, the formation of industry . Silicon has developed rapidly in recent years, miniature pressure sensor , the sensor is mainly used in the automotive industry and healthcare fields.Silicon micro- pressure sensors are characterized by small size , light weight, no moving parts , high reliability , but also large-scale production of  Cooling Temperature Sensor  , so the cost is low. High reliability and low cost requirements for the automotive industry can be said to be very suitable, so in the automotive industry rapidly expanded its applications. Such as automatic brake system pressure car surface pressure , tire pressure , bladder pressure , transmission fluid pressure , fluid pressure injection system , fuel injection pressure, engine oil pressure . Intake manifold pressure has the amount of silicon micro pressure sensor useless .Silicon micro- pressure sensors in the field of health care products is the largest application of blood pressure monitor. Allegedly some large medical equipment manufacturer to be used each year nearly 5 million pressure  Car Temperature Sensor . In addition, if the pressure of women with uterine dystocia time monitoring of silicon micro- pressure sensors, intravenous injection of liquid flow monitoring sensors , etc. are a considerable number of market demand. Many other healthcare applications are being constantly developed.Silicon miniature pressure  Engine Water Temperature Sensor is basically divided into two types : capacitive and piezoresistive . Capacitive pressure sensor includes a membrane , which acts as one plate of a variable air capacitor , when the pressure on the film , the film is displaced , thereby changing the capacitance value through the appropriate use of such change processing circuit , the pressure can be obtained values. Silicon piezoresistive pressure sensors will produce a resistance change principle made , generally the four strain resistance silicon material constituting the Wheatstone bridge to measure pressure .