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New sensor measures equipment strain in harsh environments

By Miles Budimir | July 24, 2019

Leine Linde’s new ESR digital strain sensor is now available to monitor structural health on equipment where needed. Offered in North America through HEIDENHAIN CORPORATION, it is coupled with an encoder using the digital interface EnDat, and offers significantly higher signal quality, accuracy and robustness when compared with conventional strain gauges.

To use, simply mount the ESR sensor on any flat surface where load or mechanical forces apply to a body. This new product is available for use on cranes, conveyor belts, bridges, wind turbine rotor blades or wherever a load or force needs to be monitored on a mechanical structure. Similar to all other products manufactured by Leine Linde, the ESR-sensor is suitable for use in exposed conditions and harsh environments.

The ESR series is a fatigue-free measurement concept providing high-resolution digital input into a system of choice. It is based on an optical encoder attached on a mechanical measuring arm which connects to the body being monitored. The applied force on the structure is calculated by the subsequent system measured as a position difference by the encoder.

sensor

The material in the measuring arm of the sensor unit can be adapted to match the material of the measured body. The purpose is to create a passive temperature compensation and further increase the overall measurement accuracy for those installations where ambient temperatures are fluctuating.

Simplicity during installation and commissioning was one of the driving factors during the product development, and therefore different mounting accessories are available. The sensor can be tailored for a permanent installation or used in temporary measurement campaigns.

The sensor resolution is 0,025 μɛ (μm/m) and has a measuring range of ±5 000 μɛ. The product enclosure is IP66-rated, which means it is dust proof and has protection against powerful jets of water. It is of use in a temperature range from -40 °C to 100 °C.

For more information, visit www.leinelinde.com or www.heidenhain.us.

 


Filed Under: Encoders • optical, Motion Control Tips
Tagged With: heidenhain
 

About The Author

Miles Budimir

Miles has been with Design World since 2009 covering motion control, automation, and test and measurement. He holds a BSEE degree and an MA in Philosophy from Cleveland State University and has experience working in the controls industry as a project engineer. Miles has taught engineering technology courses as well as engineering ethics continuing education courses for professional engineers in the state of Ohio. He is also a drummer, and enjoys travel and photography.

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