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High-precision intelligent temperature sensor

A temperature sensor, high-precision technology, applied in thermometers, thermometer applications, instruments, etc., can solve problems that restrict the measurement accuracy of intelligent temperature sensors

Pending Publication Date: 2021-04-02
苏州企简信息科技有限公司
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  • Description
  • Claims
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Problems solved by technology

The intelligent temperature sensor integrates the temperature sensor into a chip through integrated circuit technology, which has different advantages such as wide measurement range, small error, high resolution and strong anti-interference ability. With the continuous improvement of the measurement level and the technical level of industrial control , the accuracy requirements for temperature measurement are getting higher and higher, but there are more or less measurement errors in smart temperature sensors, which seriously restrict the measurement accuracy of smart temperature sensors

Method used

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] refer to Figure 1-2 , which is a schematic diagram of the appearance structure and a schematic diagram of the circuit structure of the high-precision intelligent temperature sensor provided by the present invention. from the figure 1 It can be seen that the high-precision intelligent temperature sensor is integrally packaged in a chip component, and the chip component receives an analog temperature signal input from the outside and processes the analog tem...

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Abstract

The invention provides a high-precision intelligent temperature sensor. Three main circuit parts, namely an analog front-end device, an A / D converter and a digital interface device, are arranged to process analog temperature signals input from the outside so as to output digital temperature signals corresponding to the analog temperature signals, and the analog front-end device carries out dynamicbalance sampling on the analog temperature signals so as to eliminate a linear error in the analog temperature signals. Meanwhile, the sampling time sequence is improved so as to reduce measurement errors caused by the series resistance of a triode. In addition, analog signals obtained through sampling are converted into digital signals through the A / D converter, so that the temperature sensing measurement accuracy is further improved, and the intelligent temperature sensor can meet the requirements of different temperature measurement occasions.

Description

technical field [0001] The invention relates to the technical field of temperature sensors, in particular to a high-precision intelligent temperature sensor. Background technique [0002] Temperature sensors are widely used in different fields such as industrial and agricultural production, scientific research and daily life. According to their development stages, temperature sensors mainly include separate temperature sensors, analog integrated temperature sensors and intelligent temperature sensors. The intelligent temperature sensor integrates the temperature sensor into a chip through integrated circuit technology, which has different advantages such as wide measurement range, small error, high resolution and strong anti-interference ability. With the continuous improvement of the measurement level and the technical level of industrial control , the accuracy requirements for temperature measurement are getting higher and higher, but there are more or less measurement err...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K13/00
CPCG01K7/02
Inventor 王鹏程
Owner 苏州企简信息科技有限公司
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