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Charge Amplifier

Testing functional capability

The production process ends with functional testing of the common rail system, which by now is already installed in the engine. This includes checking the injectors in a defined sequence and checking the opening times. This is done by triggering the injectors in the engine and examining their behavior. Up to eight piezoelectric injectors can be triggered simultaneously e.g. for rinse, hot or cold testing during end-of-line testing in engine production.

The Charge Amplifier has the appropriate interfaces for integration into the testing concept of the automation system. Current/voltage trigger patterns can be defined via a multiplexer input and the output switches of the amplifier triggered in accordance with the pattern.


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