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| Ultrasonic Sensors are non-contacting
sensors that use High Frequency sound waves as the detection medium. The time
Differential from time sent to time received after being bounced back from the
detection object determines the distance from or presence of the object. Ultrasonic
sensors are uninfluenced by differences in color and internal circuitry provides
correction from variations in surface texture or material hardness. This type
of sensor is suitable for many applications such as the non-contact detection
of transparent materials (glass, plastic, films), surface detection of high-speed
rolls (paper or steel production) and bin levels (liquids, grains, etc) to name
a few. |
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