Force measurement amplifier
Precise measurement of very small bridge sensor voltages for fast force or torque measurement.
The amplifier precisely measures very small (differential) voltages produced by bridge sensors such as strain gauges. It suits applications that need fast and accurate force or torque measurement. The board offers a range of interfaces for sending results, so it integrates easily into existing systems. Fast response was a key design goal: the board can signal through fast digital outputs that a preset force has been reached. It can operate fully on its own, and the function of each input and output can be programmed to customer requirements.
Technical characteristics
- Sampling rate: up to 3.5 kHz
- RMS noise: 0.3 µV at 7 Hz, 3 µV at 800 Hz
- Built-in precision voltage reference for sensor excitation
- Supply voltage: 24 V (other voltages possible)
- Current consumption: max. 100 mA
Communication interfaces
- Digital inputs (24 V, 12 V, 5 V, 3.3 V)
- Digital outputs (PNP, NPN, push-pull; 24 V, 12 V, 5 V, 3.3 V)
- Ethernet (measurement results to a PC as TCP packets, or to a PLC)
- RS232 (parameter configuration or measurement output)
- CAN bus, analogue outputs (e.g. 4–20 mA)
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