SQ4-A22-P

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Specialized sensors encompass a broad range of devices and systems that are designed to detect, measure, or respond to a specific type of input. The SQ4-A22-P is one such device, built primarily for pressure or stress sensing applications. It operates on the principle of variable capacitance, meaning that it detects changes in capacitance in response to pressure changes and outputs these changes as a voltage signal.

The SQ4-A22-P is composed of a metal diaphragm, a ceramic substrate, and copper plates on both the upper and lower sides of the substrate, which house an electrode on the top and a variable capacitor on the bottom. As pressure is applied to the diaphragm, the distance between the plates increases, resulting in a corresponding increase in capacitance. This capacitance change is detected and converted into a voltage signal, which can then be read on instrumentation or analog outputs.

The SQ4-A22-P is designed to be highly accurate and repeatable, with a sensitivity of approximately 30pF/V and a temperature coefficient of less than 0.1%. It is rugged and highly reliable, with an operating temperature range of -40°C to 150°C. In addition, it is relatively easy to install and maintain, requiring minimal calibration or adjustment in most applications.

The SQ4-A22-P is suitable for use in a wide variety of industrial and consumer applications, including vehicle speedometers and tachometers, level sensors, vehicle airbag control systems, testing and measuring instruments, and fuel and lubrication systems. Its highly accurate and reliable operation makes it ideal for use in applications where precise readings are required. It can also be used to detect and measure changes in atmospheric pressure, providing valuable data for a variety of scientific applications. Finally, due to its wide temperature range, it can be used in a range of extreme environments, from desert heat to arctic cold.

Overall, the SQ4-A22-P is an excellent choice for pressure or stress sensing applications. Its accuracy and reliability make it a valuable tool in a variety of applications, both industrial and consumer. Its rugged design and wide temperature range make it suitable for use in even the most extreme environments, while its easy installation and maintenance requirements make it an attractive option for applications requiring accurate readings with minimal setup.

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