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Article | January 31, 2014
Beckhoff: EtherCAT box for acceleration and angle measurement
The compact EP1816-3008 EtherCAT box from Beckhoff, an IP 67-rated I/O solution for measurement in harsh industrial environments, features built-in tilt monitoring in longitudinal and transverse directions.
The device has two integrated 3-axis acceleration sensors and 16 digital inputs. The easy-to-install I/O module can be used to implement cost-effective acceleration and angle measurement directly in the field, outside of protective electrical cabinets.
A typical application for the 3-axis acceleration box is vibration and shock/oscillation monitoring of machines, plants, and buildings. For example, vibrations of robot arms can be precisely monitored with no great effort via the acceleration measurements.
The compact and robust EtherCAT box solution is cost-effective, and easy to install and integrate. In addition, the signals are available directly in the main control system rather than being managed with stand-alone measurement solutions. The two sensors, which are arranged at 90° angles, make the EP1816-3008 a redundant measuring system, which can be reliably verified by the controller.
The EP1816-3008 features two integrated 3-axis, 16-bit acceleration sensors with resolution options of ±2 g, ±4 g, ±8 g and ±16 g. The sampling frequency is 1 Hz to 5 kHz. These MEMS (micro-electronic mechanical systems) are based on forked silicon structures, which have movements or vibrations that result in a capacitive change and a corresponding signal value.
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