CN105043583A - Circulating water-based tubular liquid crystal calibration device - Google Patents
Circulating water-based tubular liquid crystal calibration device Download PDFInfo
- Publication number
- CN105043583A CN105043583A CN201510373915.1A CN201510373915A CN105043583A CN 105043583 A CN105043583 A CN 105043583A CN 201510373915 A CN201510373915 A CN 201510373915A CN 105043583 A CN105043583 A CN 105043583A
- Authority
- CN
- China
- Prior art keywords
- metal tube
- water
- liquid crystal
- tank
- camera
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
A circulating water-based tubular liquid crystal calibration device. The device includes a computer, a temperature acquisition card, light sources, a camera, a water supply pipeline, a water pump, a water tank, a drainage pipe, a thermocouple, a metal tube, a heating plate and a refrigeration plate. A surface of the metal tube is sprayed with black paint and thermochromic liquid crystals; the heating plate and the refrigeration plate are arranged in the water tank; a water suction port of the water pump is immersed in water in the water tank; one end of the water supply pipeline is connected to a water outlet of the water pump, and the other end is connected with one end of the metal tube; one end of the drainage pipe is connected with the other end of the metal tube, and the other end is located on the water tank; the camera is installed at one side of the metal tube, and is connected with the computer; the light sources are arranged around the camera; and the computer is connected with the thermocouple installed on the surface of the metal tube through the temperature acquisition card. The circulating water-based tubular liquid crystal calibration device provided by the invention has the advantages that a calibration curve considers calibration data of different angles between a measured surface and a camera lens, thereby eliminating influence of an included angle between the measured surface and the camera lens on calibration, and enabling thermochromic liquid crystal image processing to be precise. Circulating water is used as a heat source of the measured surface, and is convenient and controllable.
Description
Technical field
The invention belongs to liquid crystal temperature pick-up unit technical field, particularly relate to a kind of tubulose liquid crystal caliberating device based on recirculated water.
Background technology
The color of cholesteryl liquid crystal can change along with temperature, thus utilizes the Temperature Distribution that this kind of liquid crystal can obtain on test surfaces.First to the relation between liquid crystal tone value and temperature be demarcated before utilizing liquid crystal thermometric.The people such as Zhao Xi and Xu Guoqiang give a kind of board-like liquid crystal caliberating device in " influence factor that thermochromic liquid crystal is demarcated and used " literary composition.This device is heated sheet metal by heating film, thermopair is used to obtain the temperature of metal sheet surface, utilize CCD camera, video frequency collection card and computing machine obtain the image of wall and extract tone value, thus obtain the relation between liquid crystal tone value and liquid crystal temperature.But the shortcoming of this device is the tone value data that can only gather in a plane, and cannot consider that between wall and camera lens, angle is on the impact of demarcating.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of tubulose liquid crystal caliberating device based on recirculated water.
In order to achieve the above object, the tubulose liquid crystal caliberating device based on recirculated water provided by the invention comprises computing machine, temperature acquisition card, light source, video camera, supply channel, water pump, tank, drainpipe, thermopair, metal tube, heating plate and cold plate; Wherein the surface spraying of metal tube has pitch-dark and thermochromic liquid crystal; Heating plate and cold plate are arranged on tank inside, and are connected with power electric by wire; The water sucking mouth of water pump is immersed in the water in tank; One end of supply channel is connected to the freeing port of water pump, and the other end is connected with one end of metal tube; One end of drainpipe is connected with the other end of metal tube, and the other end is positioned at the top of tank; Video camera is arranged on the side of metal tube, and is connected with computing machine; Light source is arranged on around video camera; Computing machine is electrically connected with the thermopair being arranged on metal tube surface by temperature acquisition card.
Described video camera is ccd video camera.
The model of described temperature acquisition card is NI9214.
Tubulose liquid crystal caliberating device tool based on recirculated water provided by the invention has the following advantages:
1. calibration curve considers the nominal data between tested surface and camera lens in different angles, thus eliminates angle between tested surface and camera lens to the impact of demarcating, and makes the image procossing of thermochromic liquid crystal more accurate.
2. adopt recirculated water as the thermal source of tested surface, facilitate controlled.
Accompanying drawing explanation
Fig. 1 is the tubulose liquid crystal caliberating device structural representation based on recirculated water provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the tubulose liquid crystal caliberating device based on recirculated water provided by the invention is described in detail.
As shown in Figure 1, the tubulose liquid crystal caliberating device based on recirculated water provided by the invention comprises computing machine 1, temperature acquisition card 2, light source 3, video camera 4, supply channel 5, water pump 6, tank 7, drainpipe 8, thermopair 9, metal tube 10, heating plate 11 and cold plate 12; Wherein the surface spraying of metal tube 10 has pitch-dark and thermochromic liquid crystal; It is inner that heating plate 11 and cold plate 12 are arranged on tank 7, and be connected with power electric by wire; The water sucking mouth of water pump 6 is immersed in the water in tank 7; One end of supply channel 5 is connected to the freeing port of water pump 6, and the other end is connected with one end of metal tube 10; One end of drainpipe 8 is connected with the other end of metal tube 10, and the other end is positioned at the top of tank 7; Video camera 4 is arranged on the side of metal tube 10, and is connected with computing machine 1; Light source 3 is arranged on video camera 4 around; Computing machine 1 is electrically connected with the thermopair 9 being arranged on metal tube 10 surface by temperature acquisition card 2.
Described video camera 4 is ccd video camera.
The model of described temperature acquisition card 2 is NI9214.
Now the tubulose liquid crystal caliberating device principle of work based on recirculated water provided by the invention is described below: when needing to obtain the relation between liquid crystal tone value and liquid crystal temperature, first utilize water pump 6 that the water in tank 7 is supplied to metal tube 10 by supply channel 5, can utilize the water temperature that heating plate 11 and cold plate 12 control in tank 7, water flows back to tank 7 through drainpipe 8 after flowing out metal tube 10.Because metal tube 10 surface spraying has pitch-dark and thermochromic liquid crystal, therefore to be heated by water or in the process that cools, the color of the thermochromic liquid crystal on its surface can change at metal tube 10.The color of thermochromic liquid crystal over time relation camera 4 being shot is recorded, and then sends computing machine 1 to, and is processed by computing machine 1, and this kind of pass ties up to can be different on the different circumferential position of metal tube 10.The light condition that light source 4 provides suitable can be utilized in the process.The temperature on metal tube 10 surface is recorded by thermopair 9, computing machine 1 records thermopair 9 measured temperature process over time by temperature acquisition card 2, and in conjunction with above-mentioned thermochromic liquid crystal color over time relation and thermopair 9 measured temperature over time process can draw the calibration curve of liquid crystal---liquid crystal rgb value or HSV value variation with temperature relation.
Claims (3)
1. based on a tubulose liquid crystal caliberating device for recirculated water, it is characterized in that: it comprises computing machine (1), temperature acquisition card (2), light source (3), video camera (4), supply channel (5), water pump (6), tank (7), drainpipe (8), thermopair (9), metal tube (10), heating plate (11) and cold plate (12); Wherein the surface spraying of metal tube (10) has pitch-dark and thermochromic liquid crystal; It is inner that heating plate (11) and cold plate (12) are arranged on tank (7), and be connected with power electric by wire; The water sucking mouth of water pump (6) is immersed in the water in tank (7); One end of supply channel (5) is connected to the freeing port of water pump (6), and the other end is connected with the one end of metal tube (10); One end of drainpipe (8) is connected with the other end of metal tube (10), and the other end is positioned at the top of tank (7); Video camera (4) is arranged on the side of metal tube (10), and is connected with computing machine (1); Light source (3) is arranged on video camera (4) around; Computing machine (1) is electrically connected with the thermopair (9) being arranged on metal tube (10) surface by temperature acquisition card (2).
2. the tubulose liquid crystal caliberating device based on recirculated water according to claim 1, is characterized in that: described video camera (4) is ccd video camera.
3. the tubulose liquid crystal caliberating device based on recirculated water according to claim 1, is characterized in that: the model NI9214 of described temperature acquisition card (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510373915.1A CN105043583A (en) | 2015-06-30 | 2015-06-30 | Circulating water-based tubular liquid crystal calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510373915.1A CN105043583A (en) | 2015-06-30 | 2015-06-30 | Circulating water-based tubular liquid crystal calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105043583A true CN105043583A (en) | 2015-11-11 |
Family
ID=54450304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510373915.1A Pending CN105043583A (en) | 2015-06-30 | 2015-06-30 | Circulating water-based tubular liquid crystal calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105043583A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823575A (en) * | 2016-05-05 | 2016-08-03 | 北京航空航天大学 | Calibration method and temperature measuring method for pixel-level thermochromic liquid crystals |
| CN108593145A (en) * | 2018-05-24 | 2018-09-28 | 中国民航大学 | The device at labeling sight angle and light illumination angle and thermochromic liquid crystal colour developing correspondence |
| CN110186593A (en) * | 2019-05-30 | 2019-08-30 | 中国民航大学 | A kind of hydronic thermochromic liquid crystal caliberating device of ball-type water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050002439A1 (en) * | 2003-04-14 | 2005-01-06 | Blichmann John R. | In-line thermometer |
| CN102539008A (en) * | 2012-01-09 | 2012-07-04 | 太原理工大学 | Method for measuring temperature of steel pipe by using image color |
-
2015
- 2015-06-30 CN CN201510373915.1A patent/CN105043583A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050002439A1 (en) * | 2003-04-14 | 2005-01-06 | Blichmann John R. | In-line thermometer |
| CN102539008A (en) * | 2012-01-09 | 2012-07-04 | 太原理工大学 | Method for measuring temperature of steel pipe by using image color |
Non-Patent Citations (4)
| Title |
|---|
| 汪柳生 等: "基于液晶测温技术的二维热传导自动分析", 《中国科学技术大学学报》 * |
| 范玮 等: "热敏液晶测温标定及误差分析", 《航空发动机》 * |
| 赵世红 等: "一种利用色度标定热色液晶的方法", 《中国工程热物理学会传热传质学学术会议论文集(下册) 》 * |
| 赵熙 等: "热色液晶标定和使用的影响因素", 《航空动力学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823575A (en) * | 2016-05-05 | 2016-08-03 | 北京航空航天大学 | Calibration method and temperature measuring method for pixel-level thermochromic liquid crystals |
| CN108593145A (en) * | 2018-05-24 | 2018-09-28 | 中国民航大学 | The device at labeling sight angle and light illumination angle and thermochromic liquid crystal colour developing correspondence |
| CN110186593A (en) * | 2019-05-30 | 2019-08-30 | 中国民航大学 | A kind of hydronic thermochromic liquid crystal caliberating device of ball-type water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105043583A (en) | Circulating water-based tubular liquid crystal calibration device | |
| RU2011115097A (en) | METHOD FOR DETECTING DEFECT IN THE MATERIAL AND THE SYSTEM FOR THIS METHOD | |
| CN105607715A (en) | Liquid-cooling system of server | |
| WO2015109857A1 (en) | Temperature detection system for molten steel in converter | |
| WO2016155588A1 (en) | Reusable casting head device | |
| CN105973929A (en) | Non-destructive testing method for detecting thermal contact resistance inside parts by infrared camera | |
| MX2022007506A (en) | Systems and methods for managing temperature control of bodies of water. | |
| EP2913614A3 (en) | Groundwater thermal storage system | |
| CN103713006B (en) | A kind of solid-solid phase-change rate measurement device of solid-state material and method | |
| CN102538691A (en) | Method for measuring diameter of high-temperature steel pipe by using image recognition technology | |
| CN205781338U (en) | Instant-heating-type constant-temperature faucet | |
| CN206018577U (en) | A kind of boiler water wall pipeline blocking and the not smooth detecting system of current | |
| CN207064219U (en) | A kind of automobile cooling pump detecting system | |
| CN205995890U (en) | A kind of thermal infrared imager auto cleaning system | |
| RU2472601C2 (en) | Method of simulating melt hydrodynamics in casting mould | |
| CN204255952U (en) | Blood analyser reagent constant temperature system | |
| CN209121893U (en) | A kind of very fast water-heating device of accurate temperature control | |
| CN203414854U (en) | Infrared camera lens with automatic cooling effect | |
| CN203365415U (en) | Simulation experiment device for scaling of water heater | |
| CN208969520U (en) | A kind of structure of controlling temperature of monitoring device | |
| CN204412566U (en) | Mould release membrance coating heated at constant temperature silica gel groove | |
| CN207894859U (en) | The full-automatic analyzer of internet+petroleum products questionable points | |
| CN104410840A (en) | Inclusion temperature measurement system and detection method thereof | |
| CN109631345B (en) | Bath duration on-site estimation system | |
| CN205995836U (en) | Thermal infrared imager automatic clearing apparatuss |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |
|
| WD01 | Invention patent application deemed withdrawn after publication |