Wire winding type nickel resistor sensitive element and manufacturing method of wire winding type nickel resistor sensitive element

Abstract

The invention relates to a wire winding type nickel resistor sensitive element. The wire winding type nickel resistor sensitive element comprises a framework, conductive rings, a supporting part, a nickel wire and a manganese-copper wire, wherein the framework is a rotary body with a thread hole; three conductive rings are arranged and are arranged on the supporting part in sequence in a die pressing manner; each of the first conductive ring and the third conductive ring comprises a ring body and a pin; each ring body is provided with a notch; the second conductive ring is a ring body with a notch and is located between the first conductive ring and the third conductive ring. A sensor assembled by the wire winding type nickel resistor sensitive element is checked through an environmental qualification test, a service life test, a reliability enhancement test and external field trial run; the working performances are stable and the utilization requirements are met. The structure and manufacturing method of the product are relatively simple and the operability is high, so that the wire winding type nickel resistor sensitive element can be used for replacing a platinum resistor sensitive element to be applied to a product for civilian use.

Description

technical field [0001] The invention relates to a wire-wound nickel resistance sensitive element and a manufacturing method, belonging to the technical field of manufacturing thermoelectric devices. Background technique [0002] The thermal resistance sensor has the characteristics of large temperature measurement range, high accuracy, stable performance, and good repeatability. It is an ideal temperature detection element and is widely used in the measurement of atmospheric temperature and fuel oil temperature in aero-engines. Pure metals or rare alloys have a large temperature coefficient of resistance and good reproducibility of the resistance-temperature characteristic curve. They are ideal materials for resistance temperature sensors. Among them, transition metals such as Pt and Ni have high resistivity and good processability, and are often used as resistors. temperature sensor material. According to their respective characteristics, the environments and temperature r...

AI Technical Summary

Problems solved by technology

[0004] At present, thin-film nickel resistors are commonly used in nickel resistors. Thin-film nickel resistors use sensitive components produced by thin-film technology and micro-processing technology, so they have the advantages of small size, small heat capacity, and fast dynamic response. However, due to thin-film nickel resistors Nickel resistors are small in size and heat capacity, and the self-heating phenomenon is very obvious, which affects the measurement error

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