Signal detecting device

The utility model discloses a signal detecting device. The signal detecting device comprises the following components: a power end, a signal receiving end, a signal transmitting end, a control end and a detecting circuit. The detecting circuit comprises a first end, a second end and a third end, whe...

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Bibliographische Detailangaben
Hauptverfasser:	HU, ZHUO-MIN, QIN, FENG, KIEMES, JOCHEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	The utility model discloses a signal detecting device. The signal detecting device comprises the following components: a power end, a signal receiving end, a signal transmitting end, a control end and a detecting circuit. The detecting circuit comprises a first end, a second end and a third end, wherein, the first end is connected with the power end; the second end is connected with the signal receiving end and the signal transmitting end therebetween; and the third end is connected with the control end. The control end is used for receiving the control signal. When the control signal is in a first state, the resistance between the first end and the second end is a first resistance; and when the control signal is in a second state, the resistance between the first end and the second end is a second resistance, wherein the first resistance is not equal with the second resistance. The signal detecting device settles a problem that a resistance signal is affected by ground voltage difference caused by separation