- Uses
- Quick, easy field calibration of vibration measurement and recording systems
- System fault finding and continuity checking
- Acceleration, velocity and displacement calibration
- Features
- Convenient, hand-held vibration reference
- Integral accelerometer for servo-stabilisation of vibration amplitude
- Reference vibration level 10 ms-2
- Fixed operating frequency of 159.15 Hz corresponding to 1000 rads-1
- Crystal controlled oscillator
- Self contained battery operation
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The Calibration Exciter 4294 is a small, handy completely self contained vibration reference source.
It is intended for rapid calibration and checking of vibration measurement, monitoring and recording systems utilising piezoelectric accelerometers as well as other vibration transducers - up to a maximum mass of 70 grams.
The 4294 permits accurate adjustment of measuring instrumentation to indicate a standard acceleration level of 10 ms-2 thus calibrating the system for correct measurement of other vibration levels
The reference level may also be used for velocity and displacement calibration: 10 ms-2 ~ 160 Hz = 10 mm/s-1 and 10 µm respectively.
Not only will a system calibration using the 4294 automatically take into account the influence of the connecting cables on the voltage sensitivity of the transducer but it will also provide a quick check on the correct function of the complete measurement system
Manufacturer's Specifications
The vibrating 'table' has a 10-32 UNF thread. Also included is a YQ 2962 steel stud and a DB 2996 mounting disk (10 grams) which has a 3 mm thread and YQ 2007 stud for miniature accelerometers. The calibrator is delivered in a small leather pouch.
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| BSI approved for the hire of noise & vibration instruments |
