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Temperature measuring device and measuring method

A technology of temperature measurement and detection, which is applied in the direction of measuring devices, measuring heat, thermometers, etc., can solve problems such as poor sensing accuracy, and achieve the effect of solving temperature measurement, fast and high-precision temperature measurement

Pending Publication Date: 2019-06-07
SHENZHEN SITAN TECH CO LTD
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Problems solved by technology

[0003] Most of the existing diode temperature sensors are silicon-based diodes. The specific processes are bulk silicon (bulk silicon) process and SOI (Silicon on Insulator, that is, the silicon transistor structure is on the insulator) process. The temperature sensing range of the bulk silicon process is The temperature sensing range of the SOI process is -55°C to 150°C, and the temperature sensing range of the SOI process is -55°C to 200°C, and it shows poor sensing accuracy outside this range

Method used

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  • Temperature measuring device and measuring method

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0034] figure 1 Shown is a schematic structural diagram of a temperature measuring device provided by an embodiment of the present invention. refer to figure 1 , the temperature measuring device includes a constant voltage circuit 10, Micro-LED20 and a current detection circuit 30; the constant voltage circuit 10 is electrically connected to the Micro-LED20, and is used to input a constant reverse voltage to the Micro-LED20, wherein the reverse voltage is greater than The reverse saturation voltage of the Micro-...

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Abstract

The embodiment of the invention discloses a temperature measuring device and a measuring method. The temperature measuring device comprises a constant voltage circuit, a Micro-LED and a current detection circuit; the constant voltage circuit is electrically connected with the Micro-LED and is used for inputting a constant reverse voltage to the Micro-LED, wherein the reverse voltage is greater than the reverse saturation voltage of the Micro-LED; and the current detection circuit is electrically connected with the Micro-LED and is used for measuring the current flowing through the Micro-LED and outputting the detection temperature. The technical scheme of the embodiment of the invention solves the problem of temperature measurement and realizes fast and high-accuracy temperature measurement.

Description

technical field [0001] Embodiments of the present invention relate to temperature measurement technology, and in particular, to a temperature measurement device and a measurement method. Background technique [0002] Most of the variables measured in scientific research or engineering applications depend to varying degrees on one of the most common and important physical quantities, temperature, so temperature sensing is also particularly important. [0003] Most of the existing diode temperature sensors are silicon-based diodes. The specific processes are bulk silicon (bulk silicon) process and SOI (Silicon on Insulator, that is, the silicon transistor structure is on the insulator) process. The temperature sensing range of the bulk silicon process is It is -55°C to 150°C, and the temperature sensing range of the SOI process is -55°C to 200°C, and it shows poor sensing accuracy outside this range. Contents of the invention [0004] Embodiments of the present invention pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/01
Inventor 刘召军刘弈镈张珂闫思吴
Owner SHENZHEN SITAN TECH CO LTD
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