A/28/E Micro-miniature piezo-electric accelerometer DJB INSTRUMENTS

This ultra small vibration transducer and the smallest in the market in stainless steal, provides virtual transparency applied to lightweight structures, allied to relative freedom from strain induced error. The reliability and performance criteria applied to our transducers generally, welded electrical connections and case seal, are fully implemented in the construction of the A/28/E. With its all welded stainless steel very rigid construction it is an absolutely unique micro-miniature accelerometer.
Good practice in use of the A/28/E will maximise service life. Removal from a structure involves shearing an adhesive bond, shock means are not adviseable, use the detachment tool provided. Abrasive cleaning of the attachment face will reduce base thickness over time, sparing use of adhesive will aid longevity.
Signal outlet is via a surface contact socket. Mating L8 connector preload torque should be 5cNm with the locknut tightened to 10cNm for signal integrity to 5,000g. A small spanner is supplied with the accelerometer.
A 0.8mm dia. softline cable is available specifically for the A/28/E.

OPTIONS :

available without a connector and therefore with an integral cable ref. A/28/E-1
available as a tri-axial designated type A/38 and A/38-1

SPECIFICATIONS :

Charge sensitivity 0.3/0.6 pC/g
Capacitance 250/420 pF
Resonant frequency > 45 kHz
Cross axis error 5 % max
Temperature range -50/+200 °C
Charge sensitivity deviation re 20°C -5 % @ -50°C +10 % @ +200°C
Max continuous accn. 5000 g sine
Max shock., rise time. 10000 g pk, 20 sec
Case material s/steel 303 S31
Mounting adhesive
Weight 0.25 gm
Connector L8
Case seal welded

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12 December 2011

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09 November 2011

A/28/E Micro-miniature piezo-electric accelerometer

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