AI-3
SPECIAL PURPOSE ELECTRONIC TEST EQUIPMENT (SPETE)—Test equipment that is
specifically designed to generate, modify, or measure a range of electronic functions of a specific or
peculiar nature on a single system or equipment.
STROBOSCOPE—An instrument that allows viewing of rotating or reciprocating objects by producing
the optical effect of a slowing down or stopping motion.
SYMPTOM ELABORATION—Using built-in indicating instruments or other aids to define an
equipment malfunction.
SYMPTOM RECOGNITION—Recognition of a situation in equipment operation that is not normal.
TACHOMETER—An instrument that measures the rate at which a shaft is turning.
TEST EQUIPMENT INDEX—The Navy guide used to assist in identifying portable
electrical/electronic test equipment required for support of prime electrical/electronic, IC, weapons,
and reactor instrumentation systems.
TEST POINTS—Locations in equipment that are accessible to the technician's probes where operating
voltages or signals can be monitored.
THERMISTOR—A type of bolometer characterized by a decrease in resistance as the dissipated power
increases.
TROUBLESHOOTING—A procedure used to evaluate equipment performance and repair equipment
when it fails to operate properly.
TUNED CIRCUIT—A circuit that is used as a filter which passes or rejects specific frequencies.
VOLTMETER—A meter that is used to measure voltage.
WATT—The unit of electrical power that is the product of voltage and current.
WATTMETER—An electrodynamometer type meter used to measure electrical power.
WAVEFORM ANALYSIS—Observation of displays of voltage and current variations with respect to
time or by harmonic analysis of complex signals.
WAVEMETER—Calibrated resonant circuits that are used to measure frequency.
WHEATSTONE BRIDGE—An ac bridge circuit used to measure unknown values of resistance,
inductance, or capacitance.
