Abstract: A proximity sensor comprising: a loop comprising an outer surface and an inner surface, at least a portion of the inner surface being a reflective surface; a light emitter positioned to emit light onto the reflective surface; a light detector positioned to preferentially receive light emitted from the light emitter and reflected from the reflective surface; and a processor that is configured, responsive to a set of instructions stored in a memory, to determine a degree of proximity of an object to the inner surface of the loop responsive to a reduction in an intensity of light emitted from the light emitter that is received by the light detector.

Abstract: A proximity sensor comprising: a loop comprising an outer surface and an inner surface, at least a portion of the inner surface being a reflective surface; a light emitter positioned to emit light onto the reflective surface; a light detector positioned to preferentially receive light emitted from the light emitter and reflected from the reflective surface; and a processor that is configured, responsive to a set of instructions stored in a memory, to determine a degree of proximity of an object to the inner surface of the loop responsive to a reduction in an intensity of light emitted from the light emitter that is received by the light detector.

Abstract: A detector locator system comprising: an electromagnetic radiation (EMR) source array comprising a plurality of EMR sources; a detector apparatus comprising an EMR detector configured to detect an EMR signal emitted by the EMR sources, a wireless transceiver configured to transmit an ON signal responsive to the EMR detector receiving the EMR signal; a control unit configured to instruct the driver to control the EMR sources to turn on one at a time in an activation pattern, receive the ON signal, and designate, responsive to the ON signal, the EMR source that triggered the detection signal as a triggering EMR source.

Abstract: A detector locator system comprising: an electromagnetic radiation (EMR) source array comprising a plurality of EMR sources; a detector apparatus comprising an EMR detector configured to detect an EMR signal emitted by the EMR sources, a wireless transceiver configured to transmit an ON signal responsive to the EMR detector receiving the EMR signal; a control unit configured to instruct the driver to control the EMR sources to turn on one at a time in an activation pattern, receive the ON signal, and designate, responsive to the ON signal, the EMR source that triggered the detection signal as a triggering EMR source.