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- Logic_probe abstract "A logic probe is a hand-held pen-like test probe used for analyzing and troubleshooting the logical states (Boolean 0 or 1) of a digital circuit. While most are powered by the circuit under test, some devices use batteries. They can be used on either TTL (transistor-transistor logic) or CMOS (complementary metal-oxide semiconductor) integrated circuit devices.There are usually three differently-colored LEDs on the probe's body: Red and green LEDs indicate high and low states respectively An amber LED indicates a pulse (as used in a NOID Light to test for pulses to fuel injectors on an electronically controlled fuel injection vehicle)The pulse-detecting electronics usually has a pulse-stretcher circuit so that even very short pulses become visible on the amber LED. A control on the logic probe allows either the capture and storage of a single event or continuous running.When the logic probe is either connected to an invalid logic level (a fault condition or a tri-stated output) or not connected at all, none of the LEDs lights up.Another control on the logic probe allow selection of either TTL or CMOS family logic. This is required as these families have different thresholds for the logic-high (VIH) and logic-low (VIL) circuit voltages.Some logic probes have a separate audible tone for each of the logical states. An oscillating signal causes the probe to alternate between high-state and low-state tones.A logic probe is a cheap, versatile and convenient digital test instrument, but can test only a single signal at a time. When many logic levels need to be observed or recorded simultaneously, a logic analyzer is used.".
- Logic_probe thumbnail Logic_probe_new.jpg?width=300.
- Logic_probe wikiPageExternalLink sprobe.html.
- Logic_probe wikiPageID "6713413".
- Logic_probe wikiPageRevisionID "550577402".
- Logic_probe hasPhotoCollection Logic_probe.
- Logic_probe subject Category:Digital_electronics.
- Logic_probe subject Category:Electronic_test_equipment.
- Logic_probe subject Category:Measuring_instruments.
- Logic_probe type Artifact100021939.
- Logic_probe type Device103183080.
- Logic_probe type Instrument103574816.
- Logic_probe type Instrumentality103575240.
- Logic_probe type MeasuringInstrument103733925.
- Logic_probe type MeasuringInstruments.
- Logic_probe type Object100002684.
- Logic_probe type PhysicalEntity100001930.
- Logic_probe type Whole100003553.
- Logic_probe comment "A logic probe is a hand-held pen-like test probe used for analyzing and troubleshooting the logical states (Boolean 0 or 1) of a digital circuit. While most are powered by the circuit under test, some devices use batteries.".
- Logic_probe label "Logic probe".
- Logic_probe label "Logiktester".
- Logic_probe label "Sonda lógica".
- Logic_probe sameAs Logická_sonda.
- Logic_probe sameAs Logiktester.
- Logic_probe sameAs Sonda_lógica.
- Logic_probe sameAs m.0gjv3p.
- Logic_probe sameAs Q638224.
- Logic_probe sameAs Q638224.
- Logic_probe sameAs Logic_probe.
- Logic_probe wasDerivedFrom Logic_probe?oldid=550577402.
- Logic_probe depiction Logic_probe_new.jpg.
- Logic_probe isPrimaryTopicOf Logic_probe.