Multi-loop sectional monitoring temperature-sensing electrical signal cable type linear temperature-sensitive detector
A technology of temperature-sensing detectors and temperature-sensing cables, used in electrical fire alarms, thermometers and instruments using electrical/magnetic components directly sensitive to heat, etc. Correctly judge fire alarm temperature, alarm temperature accuracy, low reliability and other issues
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[0010] A cable-type line-type temperature-sensitive detector for monitoring temperature-sensitive electrical signals in sections with multiple loops, see Example 1 image 3 A multi-loop closed-circuit signal acquisition circuit is formed by connecting the two ends of the temperature-sensing cable with the electrical signal detection device 6 and the terminal resistors R1, R2, and R3 respectively. It is characterized in that the temperature-sensing cable has three detection conductors 1 and the common pole to form a multi-loop, and the three detection conductors 1 are respectively coated with NTC characteristic material layer section 2 and insulating material layer section 3 at intervals, and are connected to cover NTC characteristic material layer section 2 1. The method of insulating material layer section 3 can be extrusion, winding, coating and other methods. The connection part of the detection conductor 1 is connected by welding at the connecting part of the coating NTC ch...
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