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Strain gauges

Strain gauges

Traditional strain sensors are based on strain gauge technology. To effectively measure strain values in a force or load measurement, a Wheatstone bridge resistance configuration is typically used. A Wheatstone bridge works well but only within a smaller measurement range and not fully linearly at the lower and upper ends of a larger and broader measurement range. Therefore, significant measurement errors can occur in these areas of the measurement range. To avoid these errors, PCB manufactures piezoelectric strain sensors with a quartz crystal that outputs the same mV/µε across the entire usable measurement range. Thus, the accuracy is improved. The ICP® models RHM240 and 740B02 are the strain sensors for these applications.

Torque sensors

Torque sensors

For more than 25 years, PCB has offered torque sensors of various types. These torque sensors have helped customers meet the most demanding test and measurement requirements in the process, automotive, aerospace, and defense industries, as well as in development laboratories. PCB's torque sensors are built around strain gauge technology with a Wheatstone bridge that converts the physical, mechanical force into an electrical signal that can be filtered, displayed, and recorded for further processing. This highly accurate electrical torque signal is proportional to the applied mechanical force.

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