Non-contact, ultrasonic gaging and positioning systems from Albion Devices Inc. use air-coupled, pulse-echo acoustic technology to measure thickness, distance, position, perpendicularity, shape and orientation. Accuracy is 0.0005 inch over a dynamic range of 2.5 to 6.0 inches, and the greater of +/-0.2 percent of range or +/-0.001 inch over a dynamic range of 6.0 to 18.0 inches. According to the company, this accuracy is due to a capacitive transducer that transmits and receives a high-frequency, unambiguous sound pulse. In addition, environmental factors that affect the speed of sound in air have been largely eliminated through extensive signal processing.
Gages offered include the Model UT 200 non-contact thickness or OD measure system and the Model UI 210 non-contract internal measurement system. Each of these systems includes two ultrasonic sensor heads, a single controller with all boards and hardware to output measurement, a Windows 7-compatible DigiSonic control and gaging software. The Model UD 100 non-contact distance, position, fill level and movement measurement system includes the same features but with a single sensor instead of two.