1.Introduction

8201:Battery-powered IEPE sensor signal conditioners provide a portable method for powering low impedance, piezoelectric sensors with built-in or in-line electronics, especially in field, low-noise or test and evaluation applications. The output from the signal conditioner couples piezoelectric IEPE sensors to standard readout instrumentation. All units provide an AC coupled output and have a LED to monitor sensor operation and detect cable faults. Most operate from standard 9-Volt alkaline batteries.

8204 sensor signal conditioners supply constant current excitation to piezoelectric sensors with built-in or in-line electronics and couple them to oscilloscopes, analyzers, recorders and other readout instruments. Several configurations are available including: single and multi-channel, AC coupled output, AC/DC coupled output, gain, filtering,  and overload indication. All models incorporate  LED's to monitor sensor operation and detect cable faults. Most models have adjustable constant current excitation (2 to 20 mA) to power piezoelectric IEPE sensors as well as provide more current for driving long cables at high frequencies.

8216 Multi-channel IEPE sensor signal conditioners mount conveniently into standard 19-inch rack enclosures to easily manage multiple channels of piezoelectric sensors with built-in or in-line electronics. The output from the signal conditioner couples to most standard readout instruments for vibration, shock and blast, continuous monitoring and long cable driving applications. These multichannel signal conditioners are AC powered and are available in several configurations including: 8 and 16-channel versions with unity gain, adjustable gain, filtering, integration, cable fault detection, overload indication.

2.Specification