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Surface acoustic wave temperature sensor reading circuit

A technology for temperature sensors and reading circuits, applied in electrical components, transmission systems, etc., can solve problems such as high cost and large transmission loss, and achieve the effects of reducing loss, fewer chips, and small insertion loss

Inactive Publication Date: 2018-11-02
CHINA UNIV OF PETROLEUM (EAST CHINA) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under the premise of passive wireless, the existing technology requires multiple chip connections, which has a large transmission loss and high cost

Method used

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  • Surface acoustic wave temperature sensor reading circuit
  • Surface acoustic wave temperature sensor reading circuit
  • Surface acoustic wave temperature sensor reading circuit

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Embodiment Construction

[0017] 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 making creative efforts belong to the protection scope of the present invention.

[0018] see Figure 1-3 , In an embodiment of the present invention, a surface acoustic wave temperature sensor reading circuit includes a radio frequency switch, a radio frequency transceiver chip and a single-chip microcomputer; the radio frequency switch is connected to the radio frequency transceiver chip, and the radio frequency transceiver chip is also connected to the single chip microcomputer.

[0019] The radio frequency switch includes that pin 8 of t...

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Abstract

The invention discloses a surface acoustic wave temperature sensor reading circuit, comprising a radio frequency switch, a radio frequency transceiving chip and a singlechip, wherein the radio frequency switch is connected with the radio frequency transceiving chip, and the radio frequency transceiving chip is also connected with the singlechip. The surface acoustic wave temperature sensor readingcircuit is low in operation cost, stealing damage rate is low, security is high, and each link can be inquired from a block chain. The surface acoustic wave temperature sensor reading circuit has thebeneficial effects that firstly a phase-locked loop, a power amplifier, a low noise amplifier and a mixer are integrated inside the radio frequency transceiving chip, external dimension is smaller, and miniaturization of a system is benefited; secondly a radio frequency switch is adopted, switching time is shorter, insertion loss is lesser, isolation is good, and a transceiving circuit can shareone antenna; and thirdly, quantity of adopted chips is smaller, loss in a transmission process is reduced, and working efficiency of the reading circuit is improved.

Description

technical field [0001] The invention relates to a temperature measuring circuit, in particular to a surface acoustic wave temperature sensor reading circuit. Background technique [0002] In the current industrial low-voltage power distribution field, the temperature measurement system usually adopts surface acoustic wave temperature measurement. The reading circuit needs to connect multiple devices such as phase-locked loops, power amplifiers, low-noise amplifiers, and mixers. At the same time, it needs to connect More peripheral circuits. [0003] Under the premise of passive wireless, the prior art requires multiple chips to be connected, which has relatively large transmission loss and relatively high cost. The invention integrates the transmitting circuit and the receiving circuit in the reading circuit into one chip, and realizes a wireless transmission circuit with high integration, small volume and perfect functions. Contents of the invention [0004] The purpose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40H04B1/44
CPCH04B1/40H04B1/44
Inventor 郭亮胡娜娜苏菠王红亮张秀龙
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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