DAS : High Resolution Inclinometer, ±10, ±30 or ±90°, 0.5-4.5V Out
4Pages

level developments DAS : High Resolution Inclinometer, ±10, ±30 or ±90°, 0.5-4.5V Out Description This sensor incorporates a high performance dual axis 3D MEMS sensor. The analogue output voltage varies from 0.5-4.5V over the range of the sensor and is derived directly from the sensor without any digital conversion, so it gives a very high resolution output. It is packaged in a small, robust, sealed Aluminium housing and is supplied with a 2m screened PUR cable (longer on request). There are three measuring range options, ±10°, ±30° or ±90°, and two options for supply voltage level, either 5Vdc or 9-30Vdc. These sensors are CE certified, and are manufactured and tested in our UK factory. • Measuring range : ±10°, ±30° or ±90° dual axis • Sealed to IP67 • Solid state 3D MEMS sensor • Braided screen 4 core cable, 2m standard length, others on request • High resolution 0.5-4.5V analogue voltage output directly from sensing element • Low cost relative to performance • Small size, 46 x 43.5 x 13.5mm Typical Applications • Position feedback for solar tracking systems • Platform levelling and monitoring • GPS compensation • Agricultural and industrial vehicle tilt monitoring • Telescopic and scissor lift platform monitoring • Robotics position sensing • Can be readily customised to suit most applications Specifications Parameter Level Developments Ltd. Croydon, Surrey, CR0 2DN t : +44 (0)20 8684 1400 sales@leveldevelopments.com 97-99 Gloucester Road United Kingdom f : +44 (0)20 8684 1422 www.leveldevelopments.com

DAS : High Resolution Inclinometer, ±10, ±30 or ±90°, 0.5-4.5V Out Axis Direction and Mounting Orientation and Wiring Details Horizontal surface is the zero plane Wire Colour Level Developments Ltd. 97-99 Gloucester Road Croydon, Surrey, CR0 2DN United Kingdom sales@leveldevelopments.com www.leveldevelopments.com

All inclinometers measure a change in gravitational field to derive angle. As the inclinometer sensor is rotated, the sensing element is subject to gravitational forces which move the proof mass, and this movement is detected and converted to a voltage. In this sensor the output is linear with the change in acceleration (g), which means that the output is a Sine function of the change in angle (°). The graphs below show the output voltage vs. angle. The formula to calculate the angle from the voltage is given by : (Vout-Voffset) Sensitivity Where : Vout = Measured voltage from the sensor...

level developments DAS : High Resolution Inclinometer, ±10, ±30 or ±90°, 0.5-4.5V Out One of the largest effects on accuracy for any inclinometer sensor is the effect of temperature. A change in temperature can cause a shift in the zero position (known as zero bias temperature error) as well as affecting the overall sensitivity of the device (known as sensitivity temperature error). The graphs below show the performance of typical and worst case devices for these two errors. Cable Details 1. Core wires, tin plated copper, 18x0.1mm strands per conductor (26 AWG). 2. 4 conductors, colours...