Novel steel rail thermometer

Abstract

The invention discloses a novel steel rail thermometer. The novel steel rail thermometer comprises a hand-held device terminal and a temperature measurement terminal which are connected by use of a communication cable, wherein the hand-held device terminal comprises an OLDE display screen arranged in an electronic chamber, a thin-film key panel and a power supply battery; the power supply battery is fixed inside the electronic chamber to supply power for the OLDE display screen and a single-chip electronic circuit; the single-chip electronic circuit receives the input signal of the thin-film key panel and controls the electronic display screen to display the input signal, and the single-chip electronic circuit is in communication connection with the temperature measurement terminal by use of the communication cable; the temperature measurement terminal comprises a metal shell formed by an outer shell and an inner shell nested into the outer shell, an annular magnet nested between the inner shell and the outer shell, a circuit board fixed on the inner shell, and an infrared thermometer welded on the circuit board and facing the open end of the metal shell; the open end of the metal shell is sealed by a heat-conducting silver piece. The novel steel rail thermometer is light and secure in structure, convenient to operate, good in protective properties, high in accuracy and high in temperature measurement response speed.

Description

[0001] technical field [0002] The invention relates to a novel rail thermometer and belongs to the technical field of electric circuits. Background technique [0003] The rail thermometer is a special test instrument for measuring the surface temperature of the rail on the railway. Whether it is the laying construction and maintenance of the line, or the rail replacement operation, as well as the "three defenses" (anti-expansion, anti-breakage, and heatstroke prevention) of the public works department, the main basis must be the temperature of the rail. With the rapid development of modern railways, the requirements for lines are getting higher and higher. Therefore, there are correspondingly higher standards for the accuracy and stability of rail thermometers. [0004] At present, there are two types of rail thermometers used on the line: bimetallic rail thermometers and analog signal digital rail thermometers. The analog signal digital rail thermometers have fast respo...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a new type of rail thermometer based on the shortcomings of the above-mentioned prior art, which can shorten the thermal equilibrium time between the surface of the measured rail and the temperature sensor, and solve the problem of time-consuming measurement under high-precision temperature measurement conditions

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