ST150PG2BPCF

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Pressure sensors, transducers, and ST150PG2BPCF are instruments that measure, transmit or use environmental pressure to provide an output for a pressure measurement system such as a process control system or aircraft flight control system. ST150PG2BPCF application field and working principle are discussed below.

Application Field

ST150PG2BPCF is a piezoresistive pressure sensor suitable for a wide range of pressure measurement applications, such as hydraulic systems, air flow and water flow, fuel systems, and in medical and chemical measurement systems. It is designed to sense pressure up to 150PSI and offers excellent performance, robustness, and accuracy. The ST150PG2BPCF is also suitable for measuring small pressure variations in medical and chemical processes.

Working Principle

The ST150PG2BPCF is a piezoresistive pressure sensor with an internal bridge circuit. The bridge circuit is connected to a Wheatstone bridge, which is made of four individual resistors. These resistors are exposed to the pressure, which causes them to deform. The resulting variation in resistance causes a corresponding variation in the bridge signal voltage. The output of the bridge circuit is then converted to a voltage or current signal which is proportional to the measured pressure.

The ST150PG2BPCF pressure sensor uses a Wheatstone bridge consisting of two pairs of matched transducers. Each transducer is a Piezoresistive strain gauge. That is, when pressure is applied to the diaphragm, a displacement occurs that causes the resistance of the Wheatstone bridge to change. This change in resistance is detected by the sensor, and converted to a voltage signal. The voltage signal is then amplified by an amplifier, and the resulting voltage signal is used as an indication of the applied pressure.

The ST150PG2BPCF also has a built-in temperature compensation system. This is necessary because the resistance of the Wheatstonebridge varies with temperature. The temperature compensation system works by using a diaphragm and a reference thermistor. The thermistor has a negative temperature coefficient, meaning that its resistance decreases as the ambient temperature increases. This allows the sensor to compensate for temperature variations by automatically adjusting the bridge signal voltage.

In order to provide for a reliable and accurate pressure measurement system, the ST150PG2BPCF must be correctly calibrated. This involves setting the bridge to a known pressure, and then adjusting the bridge output so that the output voltage is proportional to the applied pressure. The output voltage can then be used to provide a linear indication of the applied pressure.

The ST150PG2BPCF is a reliable and accurate pressure sensor that is designed for a variety of pressure measurement applications. It is a piezoresistive pressure sensor that provides an output signal proportional to the applied pressure, and has a built-in temperature compensation system. It is also easy to calibrate, making it a practical and economical choice for many pressure measurement applications.

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