Measuring strain with Bluetooth technology

摘要

The strain bridge measurement is found in a wide range of industrial sensors, typically load cells, to measure forces such as tension and compression, or in other sensors such as pressure or torque transducers using Wheatstone bridge circuits. Before wireless technologies became popular, whenever engineers needed to take a load-cell reading, they would (and many still do) rely on a physical connection to it. This would require the engineer to directly plug their hand terminal to the load cell into take a reading, or use a human-machine interface (HMI) to display the data from multiple sensors.