CN2911624Y - Precision compensator of infrared thermodetector - Google Patents
Precision compensator of infrared thermodetector Download PDFInfo
- Publication number
- CN2911624Y CN2911624Y CN 200620079204 CN200620079204U CN2911624Y CN 2911624 Y CN2911624 Y CN 2911624Y CN 200620079204 CN200620079204 CN 200620079204 CN 200620079204 U CN200620079204 U CN 200620079204U CN 2911624 Y CN2911624 Y CN 2911624Y
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- infrared
- disc
- code
- processing unit
- angle sensor
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Abstract
The utility model relates to an infrared thermometer, in particular to an accuracy compensation device for infrared thermometers and is composed of an infrared object sensing amplification unit, an imaging lens, a display unit, a processing unit, and a focusing device, wherein an infrared object sensing amplification unit is placed on the imaging side of the imaging lens, the focusing device and imaging lens are connected with the infrared object sensing amplification unit, and the processing unit is connected with the display unit. The infrared thermometer is characterized in that an angular sensing device is arranged on the focusing device and the angular sensing device is connected with the processing unit. The device has the advantages of high reliability, low costs, and high accuracy.
Description
Technical field
The utility model relates to the accuracy compensation device of a kind of infrared thermometer, particularly a kind of infrared thermometer.
Background technology
When using infrared temperature measurement system to carry out temperature survey, inevitably can meet the problem of range attenuation.So-called range attenuation is meant that under the situation of no any compensation the measured value of infrared temperature measurement system (under the condition of the same constant temperature target of aiming) is the target actual temperature relatively, increases the phenomenon that reduces with the distance between system and target.
In order accurately to measure, guarantee temperature measurement accuracy, the range attenuation of compensation infrared temperature measurement system is very necessary.Normally used compensation method is, by the distance between measurement target and system, multiply by experience factor for the actual measured value of system by circuit, the displayed value that makes system is near the target actual temperature, this method is because range accuracy is poor, and the infrared temperature measurement system temperature measurement accuracy is not high.
Summary of the invention
The purpose of this utility model provides a kind of accuracy compensation device of infrared thermometer, and its reliability height, cost is low, precision is high.
The technical solution of the utility model is, a kind of accuracy compensation device of infrared thermometer, it comprises infrared target sensing amplifying unit, imaging lens, display unit, processing unit, focus control, imaging surface one side of imaging lens has infrared target sensing amplifying unit, focus control is connected with infrared target sensing amplifying unit with imaging lens, infrared target sensing amplifying unit is electrically connected with processing unit, processing unit is electrically connected with display unit, it is characterized in that: the angle sensor device is arranged on the focus control, and the angle sensor device is electrically connected with processing unit.
Described angle sensor device is the Weight and disk type light and electricity detector, and it comprises code-disc and infraluminescence receiving element, and code-disc is the Nonopaque type code-disc, and infraluminescence pipe and infrared electro receiving tube are in the both sides of code-disc, and optical axis is over against the code-disc unthreaded hole.
Described code-disc is the reflecting type code-disc, and infraluminescence pipe and infrared electro receiving tube are in the same side of code-disc, and the shaven head of infraluminescence pipe and infrared electro receiving tube is over against coding.
Described angle sensor device is a potentiometer, and the center tap of potentiometer is electrically connected with the A/D converter input end of processor.
Characteristics of the present utility model are: because the angle sensor device is arranged on focus control, the angle sensor device can provide the definite position of focus control focusing, accurate location has corresponding relation with the distance of infrared measurement of temperature point, give processor by the angle sensor device with the definite position of focus control focusing like this, processor just can get according to different distances, proofread and correct the precision of point for measuring temperature, make infrared measurement of temperature constantly influence measuring accuracy with variable in distance.
Description of drawings
The utility model is described in further detail below in conjunction with the embodiment accompanying drawing.
Fig. 1 is the utility model embodiment one structural representation;
Fig. 2 is the utility model embodiment two structural representations.
Among the figure: 1, infrared target sensing amplifying unit; 2, imaging lens; 3, display unit; 4, processing unit; 5, focus control; 6, angle sensor device; 7, battery; 8, code-disc; 9, infraluminescence pipe; 10, infrared electro receiving tube; 11, housing imaging tube; 12, A/D converter; 13, potentiometer; 14, spiral shell button; 15, center tap.
Embodiment
As shown in Figure 1, outer survey temperature measuring equipment with compensation infrared measurement of temperature precision, it comprises infrared target sensing amplifying unit 1, imaging lens 2, display unit 3, processing unit 4, focus control 5, imaging surface one side of imaging lens 2 has infrared target sensing amplifying unit 1, infrared target sensing amplifying unit 1 is to be finished by infrared photo-sensitive cell and signal processing circuit, amplifying circuit, and infrared target sensing amplifying unit 1 has provided the numerical information that can be handled by processing unit 4.Focus control 5 is sealed in the housing imaging tube 11 with imaging lens 2 and infrared target sensing amplifying unit 1, and extraneous light can not entered on the light-sensitive surface of infrared target sensing amplifying unit 3.Adjusting focus control 5 can allow tested infrared target point know and be imaged on the light-sensitive surface of infrared target sensing amplifying unit 1.Rotate and regulate focus control 5, housing imaging tube 11 buckles 14 around spiral shell, can drive the code-disc 8 that is connected one with it rotates, infraluminescence pipe 9 and infrared electro receiving tube 10 are arranged on the angle sensor device 6,10 1 one receipts of infraluminescence pipe 9 and infrared electro receiving tube can provide accurate amount of spin, the all corresponding infrared thermometer thermometric target of each amount of spin is by the distance of imaging lens 2 blur-free imagings, and processing unit 4 is measured the distance that amount of spin obtains blur-free imaging, revises the infrared measurement of temperature error.Angle sensor device 6 adopts the Weight and disk type photoelectric detectors, and code-disc 8 is reflecting type code-discs, and infraluminescence pipe 9 and infrared electro receiving tube 10 be in the same side of code-disc 8, the coding of the shaven head of infraluminescence pipe 9 and infrared electro receiving tube 10 on the code-disc 8.Rotating the sign indicating number of regulating focus control 5 back reflecting type code-discs 8 can rotate around the axle of housing imaging tube 11, and the shaven head of infraluminescence pipe 9 and infrared electro receiving tube 10 can error not occur because of rotation over against code-disc 8.Adopting the Weight and disk type photoelectric detector that another kind of form is also arranged is the transmission-type code-disc, and it is to be equipped with on code-disc around the code disk shaft circular hole in one week, and infraluminescence pipe 9 and infrared electro receiving tube 10 are respectively in the both sides of circular hole.
Though adopt angle sensor device 6 and Weight and disk type photoelectric detector to be provided as the distance of picture, revise the infrared measurement of temperature error, this is not unique mode.In Fig. 2, provide another implementation method and can finish above-mentioned task equally.
As shown in Figure 2, it has provided the scheme of angle sensor device 6 employing wound potentiometers, potentiometer 13 replaces the photoelectric detector of original code-disc 8 one sides, the center tap 15 of potentiometer 13 is the voltage partial pressure value on the potentiometer 13, the voltage partial pressure value of center tap 15 is delivered to A/D converter 12, the corresponding infrared thermometer thermometric target of the output valve of A/D converter 12 is by the distance of imaging lens 2 blur-free imagings, the output valve that processing unit 4 is measured A/D converter 12 obtains the distance of blur-free imaging, revises the infrared measurement of temperature error.
The handle place internal fixation of the housing in the utility model has battery 7, and the voltage of battery 7 is input to the power end of each circuit by voltage stabilizing.
Claims (4)
1, a kind of accuracy compensation device of infrared thermometer, it comprises infrared target sensing amplifying unit, imaging lens, display unit, processing unit, focus control, imaging surface one side of imaging lens has infrared target sensing amplifying unit, focus control is connected with infrared target sensing amplifying unit with imaging lens, infrared target sensing amplifying unit is electrically connected with processing unit, processing unit is electrically connected with display unit, it is characterized in that: the angle sensor device is arranged on the focus control, and the angle sensor device is electrically connected with processing unit.
2, the accuracy compensation device of a kind of infrared thermometer according to claim 1, it is characterized in that: described angle sensor device is the Weight and disk type photoelectric detector, it comprises code-disc and infraluminescence receiving element, code-disc is the Nonopaque type code-disc, infraluminescence pipe and infrared electro receiving tube are in the both sides of code-disc, and optical axis is over against the code-disc unthreaded hole.
3, the accuracy compensation device of a kind of infrared thermometer according to claim 2, it is characterized in that: described code-disc is the reflecting type code-disc, infraluminescence pipe and infrared electro receiving tube are in the same side of code-disc, and the shaven head of infraluminescence pipe and infrared electro receiving tube is over against coding.
4, the accuracy compensation device of a kind of infrared thermometer according to claim 1 is characterized in that: described angle sensor device is a potentiometer, and the center tap of potentiometer is electrically connected with the A/D converter input end of processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079204 CN2911624Y (en) | 2006-06-20 | 2006-06-20 | Precision compensator of infrared thermodetector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079204 CN2911624Y (en) | 2006-06-20 | 2006-06-20 | Precision compensator of infrared thermodetector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2911624Y true CN2911624Y (en) | 2007-06-13 |
Family
ID=38133491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620079204 Expired - Fee Related CN2911624Y (en) | 2006-06-20 | 2006-06-20 | Precision compensator of infrared thermodetector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2911624Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716721A (en) * | 2016-02-22 | 2016-06-29 | 国网江苏省电力公司电力科学研究院 | Infrared temperature detecting precision correcting method |
| CN110307904A (en) * | 2019-08-07 | 2019-10-08 | 宁波舜宇红外技术有限公司 | A kind of temperature measuring equipment and temp measuring method of infrared thermal imaging camera lens |
-
2006
- 2006-06-20 CN CN 200620079204 patent/CN2911624Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716721A (en) * | 2016-02-22 | 2016-06-29 | 国网江苏省电力公司电力科学研究院 | Infrared temperature detecting precision correcting method |
| CN105716721B (en) * | 2016-02-22 | 2018-09-11 | 国网江苏省电力公司电力科学研究院 | A kind of infrared temperature accuracy of detection bearing calibration |
| CN110307904A (en) * | 2019-08-07 | 2019-10-08 | 宁波舜宇红外技术有限公司 | A kind of temperature measuring equipment and temp measuring method of infrared thermal imaging camera lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070613 Termination date: 20130620 |