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Temperature sensor

A technology for temperature sensors and generators, applied in sensor power supplies, thermometers, instruments, etc., can solve the problems of only a few milliwatts, unfavorable cable laying costs, etc., and achieve the effects of saving space, improving measurement results, and saving installation

Inactive Publication Date: 2010-02-17
ABB TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Disadvantages of the power supply of the measuring leads via the data bus are the associated cabling costs and, in particular, the drawable power is limited to only a few milliwatts in conventional data buses.
The proven limited battery capacity and the cost of monitoring and replacement of used batteries are disadvantageous if cabling costs are avoided and in situ batteries are used instead

Method used

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Embodiment Construction

[0025] according to figure 1 , the temperature sensor basically comprises a tubular metal support body 1 . The thermal measuring element 2 is mounted outside it. The carrier 1 with the thermal measuring element 2 extends outward from a measuring head 3 . The measuring head is used for electrical signal processing and forwarding and in this respect includes an electronic unit (not shown otherwise) for this function. The thermal measuring element 2 is also partially surrounded by a plastic insulating layer 4, leaving both ends exposed, so that the temperature of the measuring medium has an effect on these positions. In this way, the thermal measuring element 2 connects, in the longitudinal direction of the support body 1 , a local first region 5 a , which is arranged adjacent to the measuring head 3 , and a partial second region 5 b , which is arranged on the distal side of the thermal measuring element 2 . on the end. There is a temperature difference between the two region...

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PUM

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Abstract

The invention relates to a temperature sensor, comprising at least one heat measuring element (2) arranged on a support (1) and used for converting the temperature into the electric measuring signal,wherein the measuring signal can be taken because of the power supply by a connecting wire. According to the invention, for the power supply of the heat measuring element (2), generators (7, 7', 7'')arranged on the support (1) and adjacent to the measuring element are provided, so as to convert the heat energy into the electric energy.

Description

technical field [0001] The invention relates to a temperature sensor comprising at least one thermal measuring element arranged on a carrier for converting the temperature into an electrical measuring signal, which can be tapped by means of a power supply via a connecting line. Background technique [0002] Such temperature sensors, which as a measuring effect in particular utilize materials that determine the temperature dependence of electrical resistance, are used in a large number of fields of application. Temperature sensors of the type of interest here are found, for example, in particular in ventilation technology and air conditioning technology or in process technology for measuring the temperature of flowing fluids. Here, in particular, temperature sensors with and without protective tubes are inserted into the vessel structure and the pipe structure. [0003] The connection of the control technology is usually carried out via bus systems such as FOUNDATION fieldbu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/16G01K7/02G01K13/02H02N11/00H01L35/00H01L37/00
CPCG01K2215/00H01L35/24G01K7/04H01L35/32H10N10/856H10N10/17
Inventor C·施罗尔M·韦茨科R·胡克
Owner ABB TECH AG