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.
Typical wiring for current output transducer. You can think of the current loop itself as being analogous to a water system. You have a hose pipe (the wires) and a source tap (the power supply). You have a spray gun that regulates the flow (the transducer).You can have other equipment on the line, but it all has to be connected together in a ring Ioop. big benefit of the current loop is its simple wiring just the two wires. The supply voltage and measuring current are supplied over the same two wires. Zero offset of the base current (ie. 4mA) makes cable break detection simple: if the current suddenly drops to zero, you have a cable break.