Micro g Piezoelectric Accelerometer - A/800, A/800T, A/800/TC

9nC/g nom. • 400/407gm • 250°C Max. Temp.Piezoelectric Accelerometer A800

 

 

Highest sensitivity multiple shear plate vibration transducers intended for micro g level measurement – virtual immunity to strain input side effects provides guarantee of low frequency, measurement integrity. System nose level of 10-2pC is equivalent to 1mg. With bandwidth restricted to 1 kHz, noise floor should be significantly below this. Bear in mind that charge amplifier noise increases as a function of input capacitance – noise assessment should be made with the charge amplifier input correctly terminated. The transducer adds mass at its point of attachment to a structure, thus imposes a transparency constraint above which data corruption will be excessive. The single degree of freedom example
where MT represents the transducer mass, reduces  by 3% for a transducer adding 10% to the structure mass. Application area of the A/800 is thus limited in scope to low level vibration surveys in the civil engineering and heavy engineering domain

This Accelerometer is also available as an IEPE version - A/1800.

Features

  • Robust Design
  • Shear Plate design
  • High Operating Temperature of up to 250°C Standard
  • Ultra High Sensitivity - 9 nC/g output

Options

  • Hermetic TNC connector version: ref. A/800/TC
  • Wideband temperature calibration -50/+250°C

Charge Amplifiers

Charge Output Accelerometers require a Charge Amplifier to convert the charges from the vibration sensor to a voltage, readable by front end instrumentation or vibration analysers.

The CA/04/EH variant of the CA/04 Series of Charge Amplifiers is best suited for use with the A/800. The CA/100 Miniature Charge Amplifier may be suitable for some applications.

Calibration

All DJB Accelerometers are calibrated on site prior to despatch, and are accompanied by a calibration chart with temperature and frequency responses listed. Periodic calibration can be carried out with our VC-01 Handheld Calibrator whilst we also offer a full calibration service including cross axis checks to aid accuracy of data. We are able to provide this service for all makes of accelerometer with a full report given for each device. Please contact us with an enquiry 

Cable Assembly and Repair Service

• Cable Repair Service to make current cabling as good as new, cutting costs whilst good for the environment
• Specialist Cable Assembly - for all manufacturers
• Cable and connector stock held for a quick turnaround

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