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Application
• Charge preamplifier for use with piezoelectric transducers with charge output
• To be mounted close to the transducer, particularly for applications where IEPE transducers are not available, e.g. measurements at high temperature or with very small transducers
• Suitable for long distance signal transmission due to low impedance output
• Rugged small package
• IEPE compatible power supply via output cable
• Compatible to standard instrumentation
Properties
• Charge input stage, no influence of sensor cable capacitance
• Low noise device
• Constant current for power supply carried with the output cable, no separate power line required
• 3 gain ranges selectable by internal DIP switch: 0.1 / 1 / 10 mV/pC
Gain : 0,1 mV/pC; 1 mV/pC; 10 mV/pC; (selectable by internal DIP switches)
Measuring ranges :
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0,1 mV/pC: ± 50 000 pC
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1 mV/pC: ± 5000 pC
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10 mV/pC: ± 500 pC
Frequency range :
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0,6 Hz - 23 kHz (-5 %)
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0,3 Hz - 33 kHz (-10 %)
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0,2 Hz - 65 kHz (- 3 dB)
Input : Charge input, single ended, connected to signal ground, BNC socket (female)
Output : IEPE compatible, voltage, single ended, connected to signal ground, BNC plug (male)
Operating temperature range : -20 .. 80 °C
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