Rafting the Colorado River through the Grand Canyon can be the trip of a lifetime. Rafts splash through more than 40 monstrous rapids, evoking shrieks of delight from its occupants. The journey is the ultimate getaway, as the river's remote location requires you to be on the river for at least a week unless you want to hike in or out of the canyon.
Effects of Long Cables in Ultrasonic Testing with Single Element Transducers. A transducer cable is an integral part of any ultrasonic flaw detection or thickness gaging system, but usually it is not the subject of much operator attention other than insuring that it is not broken, frayed, or otherwise defective.
Transducers: Devices used to transform one kind of energy to another. When a transducer converts a measurable quantity (sound pressure level, optical intensity, magnetic field, etc) to an electrical voltage or an electrical current we call it a sensor. We will see a few examples of sensors shortly. When the transducer converts an electrical signal into another form of energy, such as sound (which, incidentally, is a pressure field), light, mechanical movement, it is called an actuator. Actuators are important in instrumentation. They allow the use of feedback at the source of the measurement.