Uses- Powering and connecting piezoresistive accelerometers and other bridge transducers directly to Brüel & Kjaer microphone input sockets
| Features- Powered from 7-pin LEMO microphone socket on Brüel & Kjær instruments
- Transducer excitation voltage
- DC signal coupling
- Low-pass filter
- Built-in TEDS conforms to IEEE 1451.4 Class 1
- Input balance adjustment
- Variable output offset
- High-pass filters
- AC/DC signal coupling
- Switchable amplifier gain
- Individually configured
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The units have very high input impedance, presenting virtually no load to the transducer. Both units have built-in TEDS and low-pass filters. They can be powered from the 7-pin LEMO microphone socket on Brüel & Kjær instruments. The low output impedance means that up to 30 m of cable can be connected between the preamplifier and the measurement equipment without introducing distortion.
The main application is in analysis systems where bridge transducers such as variable capacitance accelerometers, piezoresistive accelerometers and pressure transducers are used.
Type 2697 is DC coupled and has no gain, whereas Type 2697 A is AC coupled and has three switchable gain settings. Furthermore, Type 2697 A has a variable input balance and output offset, adjustable by potentiometers.
The following additional configurations of Type 2697 A can be requested at the time of ordering:
Please contact your local Brüel & Kjær representative for further information.
For a full Description and Specifications, see
Product Data
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