Bruel & Kjaer 2693 /2690丹麦 功率放大器 NEXUS
双通道(单探头)声强调理放大器适调放大器
信号调理可以改进测量系统的性能和可靠性。一个典型的系统包括信号调理硬件,作为原始信号和传感器输出到测量设备之间的接口。调理放大器为系统提供信号放大、电绝缘、滤波、传感器供电、过载检测及传感器电子数据表(TEDS)功能支持。
调理输入的主要类型有:
传声器
DeltaTron?(或IEPE)
电荷
强度
桥式和差分
用途
Specially suited for automotive use. Developed in association with major car manufacturers, for high-quality field and laboratory measurement systems
Used with charge accelerometers, hydrophones, force transducers, condenser microphones, DeltaTron? accelerometers, DeltaTron preamplifiers, voltage input and sound intensity probes
Field recording of vibration and acoustic signals
Specially suitable for applications where shocks and impulses occur such as gas turbine testing and munitions testing (Types 2692-C and -D only)
特点
Highly flexible construction – 1, 2, 3 or 4 channel configurations, or a combination of acoustic and vibration transducer inputs is possible
High input signal range. Low noise. Extensive overload facilities
Supports transducers with TEDS according to IEEE 1451.4
Available for: charge, microphone, sound intensity, DeltaTron and very high input
Compact robust design and battery operation makes it suitable for use in the field (and in the laboratory)
Serial control interface (RS–232) allows computer control of setups and test functions. A large number of amplifiers can be controlled from a single PC
High accuracy due to reliable construction and a wide range of calibration options. Built-in patented Charge Injection Calibration (CIC) and patented Mounted Resonance Testing
Wide range of filters that can be set up for specific tasks
Rack-mounting fittings available
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