|
by Diane Himes, MA Editorial Staff Posted on Tuesday, November 21, 2006 6:05:40 PM   | Abstract: | Many models of ultrasonic sensors have emerged that include on-board "teach" capabilities to set programming specifications on the sensor and push-button set-up installation that facilitates ease of use. |
The realm of industrial sensors might not seem like a hotbed of exciting technological advancement and product breakthroughs, but for those who rely on them on the plant floor, a usability enhancement here or a new capability there can make a world of difference. Take ultrasonic sensors, which are known to provide superior non-contact distance measurement while remaining impervious to pesky barriers such as moisture, dirt, dust, light, and color that can compromise traditional sensor accuracy. These tools have a reputation for being part of complicated systems that often require a specialist operator. Recently, however, many models of ultrasonic sensors have emerged that include on-board "teach" capabilities to set programming specifications on the sensor and push-button set-up installation that facilitates ease of use. Ultrasonic sensors belong to the piezoelectric family of sensing technologies, which use crystals to generate an electrical voltage in the sensor's transducer. These crystals are able to convert electric energy into acoustic energy and vice versa. When sound waves from the sensing target are reflected back to the transducer, an output signal is produced. [Click to continue] |