PAS3General purpose wideband preamplifier Description and Features The voltage signal output by acoustic emission sensors can sometimes be as low as a few microvolts. Such weak signals, if transmitted over long distances, will inevitably decrease in strength. The original sensor signal needs to be amplified several times before transmission, and then transmitted to the signal acquisition unit through a high-frequency coaxial cable. The preamplifier is an analog circuit, with the input being the voltage signal output from the acoustic emission sensor, and the output being the amplified analog signal. Technical Specs Response frequency Equivalent noise Maximum transient output Maximum steady-state output Board power supply Output load Working temperature Housing material Cast aluminum Dimensions (LxWxH) Protection level Address: Room 601-9, Building 3,232 Kezhu Road, Huangpu District, Guangzhou City, Guangdong Province, CHINA Tel:+86-20-32290092 E-mail: [email protected] Contactor: Jessica Jia Specifications subject to change without notice. Copyright @ 2022 Qingcheng AE Institute. All Rights Reserved, www.aendt.com

PAS 3General purpose wideband preamplifierFunctional Description • Input Switch: choose between "Single" input (left) or "Differential" input (right) as the input signal. • Differential Input: connect it when a differential sensor is used. BNC • Gain Switch: choose one of the gains. There are three options, from left to right, 40dB | 20dB | 60dB respectively. • Filter Knob: rotate the knob to choose one of the analog filter range. There are four options, from left to right, 5k-1200kHz | 80k-480kHz | 5k-160kHz | 5k-50kHz. • Attenuation Switch: choose between the two attenuation values, OdB (left)...