Balluff
Dolphins as role models
Balluff uses the 'BFD' ultrasonic position sensor to monitor hydraulic clamping elements. The technology is based on the echolocation system of dolphins, which send ultrasonic waves into the water and are thus able to form a spatial image of their surroundings.
The ultrasonic sensor from Balluff emits ultrasonic waves into the hydraulic fluid of short-stroke clamping elements such as swing clamps or block cylinders and uses the ultrasonic waves to directly detect the respective clamping process and the clamping status. Possible deviations in the oil supply, casting errors, contour differences or deformed workpieces can thus be detected at an early stage. The position sensor measures over the entire measuring range (0 to 80 mm), offers a repeat accuracy of ±50 μm and a linearity deviation of ±250 μm. Other features include pressure resistance up to 350 bar, IP67 and an operating temperature of 0 to +85 °C. In IO-Link operation, the sensor provides status data on signal quality or device temperature and detects critical changes such as air or particles in the hydraulic system.
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