Temperature-controllable resistor and temperature-self-controlling resistance device

Abstract

The invention provides a temperature-controllable resistor and a temperature-self-controlling resistance device. The temperature-controllable resistor comprises a resistor and a heating plate, wherein the resistor comprises a resistor shell, the heating plate is a flexible electric hot plate and adhered to the external surface of the resistor shell, the inside of the flexible electric hot plate is provided with metal foil heater strips, the heater strips are arranged in a loop mode, and the flexible electric hot plate is provided with an electrical connection end. When the temperature-controllable resistor provided by the invention is used, the constant temperature of the resistor can be realized without putting the temperature-controllable resistor in a temperature controlling tank, thereby reducing the application cost of the temperature-controllable resistor, and enhancing the stability of the temperature-controllable resistor; and the volume of the temperature-self-controlling resistance device provided by the invention is greatly reduced and is only several times that of the resistor in the temperature-controllable resistor, so that the temperature-self-controlling resistancedevice can carry out precise adjustment on the temperature of the temperature-controllable resistor, thereby realizing the high-stability control temperature and guaranteeing the requirement of the resistor on stable temperature.

Description

technical field [0001] The invention relates to a novel resistor, in particular to a temperature-controllable resistor and a self-temperature-control resistor device. The self-temperature-controlling resistance device can realize high-precision temperature control, and the high-precision means that the temperature accuracy is 0.01°C, that is, the upper and lower fluctuation range of the set temperature is ≤0.01°C. Background technique [0002] Since the resistance has a temperature coefficient, the value of the resistance will change under the influence of temperature, so the resistance is usually placed in a constant temperature oil tank or a temperature control tank to avoid the interference of the external temperature. Thermal insulation layer, and control the temperature in the circuit temperature control tank by connecting the temperature controller. The existing temperature controller mainly includes a temperature control circuit, and its structural diagram is as foll...

AI Technical Summary

Problems solved by technology

The problem is that the temperature-controlled resistor has a small volume, but the temperature-controlled tank has a large volume, plus a thicker high-density sponge or polystyrene insulation tank, so that a small-volume resistor is controlled After warming, the volume will increase by ten times or dozens of times, which is extremely inconvenient to use and basically not suitable for mobile methods, so that its use as a measurement standard is greatly restricted. If the sensitivity and heat preservation effect of the temperature control circuit are not ideal, It is difficult to meet the constant temperature requirements of the resistor

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