Signal tracer Signal tracer A signal tracer is a piece of electronic test equipment used to troubleshoot radio and other electronic circuitry. Usually a very simple device, it normally provides an amplifier, and a loudspeaker, often battery-powered and packaged into a small, hand-held test probe. An optional diode detector is usually also provided, allowing the detection of amplitude-modulated signals. The technician injects a test signal into the device under test. Then, by using the signal tracer, the tech can follow the signal through the various circuits of the radio receiver. So long as the signal can be heard, the circuitry up to
Sensitive skin (electronic device) have demonstrated pressure and temperature measurements at a resolution of a few millimeters, as well as organic transistors, organic solar cells, and organic light emitting diodes about 1 μm thick. The sensor arrays are based on many organic thin film transistors that are turned on one at a time and the current that flows through the sensor (electrical resistance-based) tells you how much pressure is being sensed. They have simultaneously measured pressure and temperature by using two separate arrays and laying one on top of another. Sensitive skin (electronic device) Sensitive skin, also known as sensate skin or electronic skin