Digital Multi-Channel Displacement Measurement System Replaces Dial Gauges

Applied Measurements were approached and asked to manufacture a 3-channel digital displacement measurement system to replace an ageing and difficult-to-monitor mechanical system based on dial gauges. The result was a neat, user-friendly, high accuracy system based on a strain gauge sensing principle and coupled with the very latest digital indication technology, all delivered within 2 weeks and backed up by an expert team of engineers. The basis for the system was the strain gauge-based AML/SGD displacement sensor that has been designed specifically to offer high resolution and accuracy in applications where the more conventional choice a LVDT or potentiometer type sensor does not offer sufficiently precise performance. In this instance a 10mm version of the AML/SGD was calibrated over a +/-3mm measuring range with a resolution of 10 microns, although this can be extended to 1 micron or even 0.1 micron if demanded. The AML/SGD is a spring-loaded displacement sensor design available with measuring ranges from 0-5mm up to 0-100mm. On indication duties were three Intuitive2-L strain gauge input displays. These highly flexible panel-mount displays were chosen as they can be used with any common type strain gauge transducer (and even some uncommon ones!) to provide a highly stable reading from their six 14mm high LED digits. The Intuitive range offer excellent flexibility with the ability to build in both analogue and digital outputs plus a set of 2 or 4 alarm relays. The three indicators were coupled with a 3-way PCC desktop enclosure (our primary choice for any desk-mounted, mains powered measurement system) to give the system a clean finish and keep all interwiring contained, leaving the user to simply connect the three transducers to their corresponding connectors on rear of the PCC3 and attach a standard 3-pin IEC mains cable. Prior to despatch each displacement transducer was calibrated with its allocated indicator using our custom-designed in-house test equipment and a set of UKAS-calibrated slip gauges and issued with a calibration certificate that is Traceable to National Standards. Contact our engineers now on 01189 817339 or by email and see how our system building expertise can be put to work for your application!

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