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HBM offers CFT sensors without charge amplifier

A HBM UK product story
Edited by the Engineeringtalk editorial team Jun 3, 2009

HBM UK is now offering its CFT range of piezoelectric force sensors without a corresponding charge amplifier to give customers greater freedom when choosing components.

This move is intended to benefit clients that operate the sensors in a partial range of their nominal (rated) load.

The CFT range of piezoelectric force sensors is now available without a corresponding charge amplifier

The CFT range of piezoelectric force sensors is now available without a corresponding charge amplifier

This can be achieved with piezoelectric sensors as the output signal is not dependent on the nominal (rated) load of the force transducer used.

Alternatively, a charge amplifier with a smaller measurement range may provide better resolution.

The force transducers are available with nominal (rated) loads of 5kN, 20kN, 50kN, 70kN und 120kN.

In transducers with smaller nominal (rated) loads of 5kN and 20kN, the piezo-crystal is Gallium phosphate (GaPO4), which has an output signal of 7.9pC/N.

Quartz is used as the sensor element for the larger nominal (rated) load ranges.

The transducers are factory calibrated in two ranges and can be used immediately in the application.

The compact structure of the sensors and the IP65 degree of protection enable operation under difficult conditions, according to the company.

Typical applications for the CFT range of piezoelectric force sensors are in monitoring production processes such as joining, spot welding, press fitting or punching, where the sensors can provide information about process quality.

Find out more about this article. Request a brochure, download technical specifications and request samples here.

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