Unlock instant, AI-driven research and patent intelligence for your innovation.

Temperature calibrator with temperature difference measurement function

A calibrator and temperature difference technology, which is applied in the field of temperature calibrators, can solve the problems of inconvenient delivery of temperature sources, troublesome and other problems, and achieve the effects of compact structure, convenient use and simple operation.

Active Publication Date: 2013-11-13
泰安磐然测控科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most temperature sources are inconvenient to send for testing due to volume, quality and other reasons. Usually, qualified metrology and verification personnel are required to carry test instruments to the site for testing. trouble

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Temperature calibrator with temperature difference measurement function
  • Temperature calibrator with temperature difference measurement function
  • Temperature calibrator with temperature difference measurement function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 2 shown, the relay The normally closed path of 13 is connected in series between the IEXC2 of the constant current source circuit of the measuring circuit and the terminal Ⅲ3; the relay The normally open path of 13 is connected in series between terminal III3 and terminal VI6, the normally open path of relay II14 is connected in series between IEXC2 and terminal VII7; the four connecting terminals V5, VI6, VII7, VIII8 of the analog output circuit are connected The output circuits 10 are respectively provided with relays; the normally open contact of the relay of terminal V5 is connected to IN2+ of the measurement circuit, and the normally open contact of the relay of terminal VIII8 is connected to IN2- of the measurement circuit.

[0018] When used for temperature difference measurement, open the relay between the four terminals V5, VI6, VII7, VIII8 of the analog output circuit and the analog output circuit 10, and disconnect the electrical connection...

Embodiment 2

[0020] Such as image 3 As shown, there are relays respectively arranged between the connecting terminals I1, II2, III3, IV4 and the measuring circuit, the normally open path of the relay between the connecting terminal I1 and the measuring circuit is connected in series between the measuring circuit and the connecting terminal V5, and between the connecting terminal II2 and the measuring circuit The normally open path of the relay is connected in series between the measurement circuit and terminal VI6, the normally open path of the relay between terminal III3 and the measurement circuit is connected in series between the measurement circuit and terminal VII7, and the normally open path of the relay between terminal IV4 and the measurement circuit is connected in series Between the measuring circuit and terminal Ⅷ8.

[0021] When used for temperature difference measurement, open the relay between the four terminals V5, VI6, VII7, VIII8 of the analog output circuit and the anal...

Embodiment 3

[0023] Such as Figure 4 As shown, relays are respectively set between terminals II2, III3 and the measuring circuit, the normally open path of the relay between terminal II2 and the measuring circuit is connected in series between the measuring circuit and terminal VI6, and the normally open path of the relay between terminal III3 and the measuring circuit It is connected in series between the measuring circuit and terminal VII7; the normally open contact of the relay of terminal V5 is connected to IN2+ of the measuring circuit, and the normally open contact of the relay of terminal VIII8 is connected to IN2- of the measuring circuit.

[0024] When used for temperature difference measurement, open the relay between the four terminals V5, VI6, VII7, VIII8 of the analog output circuit and the analog output circuit 10, and disconnect the electrical connection with the analog output circuit 10; standard 1 and standard 2 respectively by figure 2 Connect the corresponding termina...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a temperature calibrator with a temperature difference measurement function. The temperature calibrator comprises a measurement circuit and an analog output circuit, wherein the measurement circuit is provided with four wiring terminals I, II, III and IV; and the analog output circuit is provided with four wiring terminals V, VI, VII and VIII. The temperature calibrator is characterized by also comprising a temperature difference measurement function switching circuit which can access two wiring terminals of the analog output circuit into the constant current source loop of the measurement circuit and access the other two terminals of the analog output circuit into the input channel of the measurement circuit when cutting off the electrical connections between four wiring terminals of the analog output circuit and the analog output circuit. According to the invention, the temperature difference measurement function is embedded in the temperature calibrator, the software and hardware resources of the temperature calibrator are sufficiently utilized, and a low thermo-electrical potential conversion switch in a conventional temperature difference measuring device is omitted so as to ensure that the whole testing device has a compact structure and is convenient to use.

Description

technical field [0001] The invention belongs to the field of temperature measurement / calibration / testing, and particularly relates to a temperature calibrator, which expands the measurement function of temperature difference (including small temperature difference and standard temperature difference). Background technique [0002] The temperature sources for temperature measurement / calibration based on the comparison method (including various constant temperature baths, thermocouple verification furnaces, etc.) are all key supporting equipment for temperature measurement standard devices, and regular temperature uniformity tests are required. The test basis includes "JJF 1030-2010 Technical Performance Test Specification for Constant Temperature Bath, "JJFll84-2007 Technical Specification for Temperature Field Test of Thermocouple Calibration Furnace" and other technical specifications and related verification procedures. [0003] The temperature uniformity test of the tempe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/02G01K7/16G01K15/00G01K19/00G01K7/026
Inventor 徐震震孙睿徐军
Owner 泰安磐然测控科技有限公司