Sensors & Transducers


Amplifier for exact force measurement

March 2011 Sensors & Transducers

Baumer’s bridge amplifier, DABU/I AD2T, offers a fail-safe force measuring amplifier for use in challenging industrial environments.

The amplifier has an analogue signal path and converts mV/V signals from strain gauge bridge circuits into a voltage/current (DABU/I) signal. The unit has a bandwidth of 1000 Hz and an excellent signal-to-noise ratio. Its wide tare level of ±6 mV/V allows for safe and easy implementation of the measuring chain even under difficult assembly conditions. The tare function can be triggered by a control pulse and takes only 5 ms to complete. The amplifier has an input signal range from 0,25-2 mv/V.

The small, rugged aluminium housing complies with protection class IP65. As the amplifier does not contain any mechanical parts, it is highly resistant to vibration, which makes it particularly suitable for use in industrial applications. Electromagnetic compatibility has been tested according to EN 61000.

The DABU/I is suitable for static and cyclical measurements. It was designed to complement measuring chains with any force and strain sensors by Baumer, including the DLRx load cell, DSRC strain ring, and DLRP strain sensor. Thus, the DABU/I AD2T supports Baumer’s patented Strain-Mate principle, which makes it possible to measure clamping forces with strain rings without the time-consuming procedure of bonding strain gauges onto the surface.



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