Voltage Preamplifiers

A voltage preamplifier amplifies the voltage output from the sensor. This is the most commonly used preamplifier type.

The MISTRAS voltage Preamplifiers were designed to be used with all available AE systems that have their power supplied via the output signal BNC. Provided with a user selectable gain, these preamplifiers operate with either a single-ended or differential sensor.

Plug-in filters provide the flexibility to optimize sensor selectivity and noise rejection. These filters are supplied in the Low Pass (LP), High Pass (HP) and Band Pass (BP) configurations, and offer constant insertion loss for easy filter swapping without the need for recalibration.

Used to verify sensor coupling, the unique Auto Sensor Test (AST) allows the sensor to characterize its own condition, as well as send out a simulated acoustic emission wave that other sensors can detect.