Uses
- Shock and vibration measurement and analysis
- Vibration monitoring
- Modal and structural analysis
- Vibration test control
- Production and quality control
| Features
- Competitively priced DeltaShear ®V” Types, especially suitable for permanent setups
- Uni-Gain types for easy interchangeability
- DeltaTron types with integral preamplifier
- Acceleration ranges cover 20 m ms–2 to 1000 kms–2
- Frequency ranges cover from a fraction of a Hz to 60 kHz (+ 10% limit)
- Temperature ranges cover – 74° to + 250°C (– 101 to + 482°F)
- Low sensitivity to extraneous environmental influences including temperature fluctuations
- Low sensitivity to base bending effects
- Individual calibration supplied
- Artificially aged for long-term stability
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The Brüel & Kjær transducer range incorporates accelerometers suitable for most application requirements. In addition to the comprehensive range of piezoelectric accelerometers described in this Data Sheet, Brüel & Kjær supply accelerometers for heavy-duty industrial use and transducers specifically designed for special-purpose applications.
The active element of Brüel & Kjær accelerometers consists of piezoelectric discs or slices loaded by seismic masses and held in position by a clamping arrangement. When the accelerometer is subjected to vibration, the combined seismic mass exerts a variable force on the piezoelectric element. Due to the piezoelectric effect, this force produces a corresponding electrical charge.
For frequencies from DC up to approximately one third of the resonance frequency of the accelerometer assembly, the acceleration of the seismic mass is equal to the acceleration of the whole transducer. Consequently, the charge produced by the piezoelectric element is proportional to the acceleration to which the transducer is subjected.
The electrical signal output from Brüel & Kjær accelerometers is self-generated, though the types with built-in preamplifiers require an external power supply for this signal to be measured.
All the piezoelectric accelerometer types described in this Product Data sheet are supplied with an individual calibration chart and, in most cases, an individually measured frequency-response curve. Data from these charts are summarised in the Specifications.
®V” and Uni-Gain Types
Some of the piezoelectric accelerometers described in this Product Data sheet are available both as ®V” types as well as Uni-Gaintypes. The DeltaShear without Uni-Gain types are recognized by the ®V” suffix in the type name. The only difference between these two types is that all the specifications on the calibration chart for ®V” types,...
For a full Description and Specifications, see Product Data
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