BSI inclination sensors offer greater accuracy (June 2013)
The new liquid-based absolute BSI inclination sensors from Balluff detect deviations to the horizontal on an axis over a full 360deg. With a particularly high accuracy of 0.1deg, a resolution of 0.01deg and a temperature drift of just 0.01 per cent /10K, they are the compelling choice when, in complex applications, inclination angles need to be precisely detected and monitored or rotary movements must be constantly tracked. Housed in compact robust IP67 aluminium for easy installation and integration, the sensors have an extended temperature range of –40degC to +85degC making them ideal for outdoor applications.
Balluff BSI inclination sensors are based on a capacitive measuring principle and are equipped with a liquid-based measuring cell. These consist of four capacitors filled with a liquid dielectric. Depending on the inclination of the sensor, the ‘horizon’ of this medium covers the capacitors differently, causing the capacitance – as measure for the inclination angle – to change.
Three models are available, 0-360deg and +/- 45deg measuring angle with an absolute analogue output signal from 4 – 20mA, plus the 360deg model is also available with a Modbus RTU RS-485 output.
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