CN202938913U - Photoelectric temperature sensing device - Google Patents
Photoelectric temperature sensing device Download PDFInfo
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- CN202938913U CN202938913U CN 201220198742 CN201220198742U CN202938913U CN 202938913 U CN202938913 U CN 202938913U CN 201220198742 CN201220198742 CN 201220198742 CN 201220198742 U CN201220198742 U CN 201220198742U CN 202938913 U CN202938913 U CN 202938913U
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- temperature
- photoelectric
- temperature sensing
- processing module
- sensing device
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Abstract
The utility model provides a photoelectric temperature sensing device. The photoelectric temperature sensing device comprises a temperature sensing tube, a light beam processing module, a digital processing module and a recommended standard 485 (RS485) bus conversion circuit. Temperature signals of a detected temperature field are converted into light beams after being sensed by the temperature sensing tube; subsequently, the light beams are converted into voltage signals through the light beam processing module; then, the voltage signals are converted into digital signals of measured temperature values after being processed by the digital processing module; and then, the digital signals are converted into specific network protocols, thus, the anti-jamming capability of the data of the measured temperature values is strong, the error in the transmission process is small, and the actual measured temperature in the detected temperature field can be actually reflected. A communication interface of the digital processing module is converted into an RS485 standard bus interface by the RS485 bus conversion circuit, and thus, online communication or networking can be performed between the measured temperature values and a plurality of photoelectric temperature sensing devices and a plurality of terminal computers in the manner of network protocols to realize acquisition, remote control and management on the measured temperature values.
Description
Technical field
The utility model relates to the photoelectric temperature sensory field, particularly relates to a kind of photoelectric temperature sensing device.
Background technology
all be unable to do without high-temperature service in many productions in industry, and these high-temperature services are long-term operation continuously usually, the working temperature of described high-temperature service is all very high thus, simultaneously, described high-temperature service also exists various gases and dust pollution, again because commercial production is particularly smelted, electrical production, the industries such as Metal Materials At High Temperature thermal treatment are very strict to the requirement of the technological parameters such as temperature, not and want accuracy high, good stability, long service life, also requirement can realize real time and on line monitoring, this just requires described high-temperature service to have function admirable, job stability is high, antijamming capability is strong, the characteristics such as corrosion-resistant and long service life.
At present, high-temperature service on the market adopts noble metal sensor (as the platinum Pt Rh) to carry out long-term online surveying work mostly, but easily being polluted, the coupling filament of and noble metal sensor (as the platinum Pt Rh) poor due to the antifouling property of noble metal sensor (as the platinum Pt Rh) goes bad, thereby produce huge measuring error, even damage serviceable life short (approximately only have 5 ~ 7 months serviceable life in metal material heat treating equipment such as High Temperature Salt Bath Furnace).In this case, not only cause the excessive consumption of precious metal material, production cost increases, and because needs are frequently changed the noble metal sensor, also impact is produced to a certain extent, more seriously, and due to the mistake in measuring error and transmitting procedure, the temperature data interference rejection ability is poor, really the actual measurement temperature of reflected measurement end.
The utility model content
In view of this, the utility model aims to provide a kind of photoelectric temperature sensing device that can carry out surveying work under rugged surroundings, to solve existing noble metal sensor because production cost fragile and that measuring error is brought increases, the measurement data interference rejection ability is poor and the actual measurement temperature can not obtain the true problem that reflects.
First aspect, the utility model provide a kind of photoelectric temperature sensing device, comprise temperature-sensing pipe, beam treatment module, digital processing module and SR485 bus switching circuit.
Further, described digital processing module comprises compensating circuit, analog-to-digital conversion circuit and data processing protocol modular converter.
Further, described beam treatment module comprises light beam rearrangement module and photoelectric conversion module.
Further, described photoelectric conversion module comprises lens, light-conductive hole, photo-electric conversion element and light-sensitive surface.
Preferably, described temperature-sensing pipe is made of the material of corrosion-and high-temp-resistant.
Preferably, the material of described temperature-sensing pipe is diamond spar.
Preferably, the material of described temperature-sensing pipe is pottery.
Second aspect, the utility model also provide a kind of measureing method of high-temperature, comprise the above-mentioned arbitrary described photoelectric temperature sensing device of power, and the described measureing method of high-temperature comprises the following steps:
Step a, described temperature-sensing pipe is positioned over detects in temperature, inner heat radiation and the bright intensity of producing of described temperature-sensing pipe forms light beam;
Step b, described light beam are conveyed to described photoelectric conversion module after arranging through the light beam rearrangement module;
Step c, described light beam produce magnitude of voltage, and are sent to described digital processing module by guiding and the arrangement of described photoelectric conversion module;
Steps d, described digital processing module carry out obtaining measuring the digital signal of temperature value after calculation process to described light beam, and the digital signal of described measurement temperature value are conveyed to described SR485 bus switching circuit;
Step e, described SR485 bus switching circuit convert the communication interface of described digital processing module to the SR485 Standard bus interface, thereby described measurement temperature value with the pattern of procotol can with a plurality of described photoelectric temperature sensing devices and the communication of many station terminals computer interconnection or networking, realize collection, Long-distance Control and the management of described measurement temperature value.
Further, described step c realizes in the following manner:
Described light beam by described photoelectric conversion module lens and after light-conductive hole guides and arranges the light velocity, on the light-sensitive surface of irradiation to described photoelectric conversion module, thereby produce magnitude of voltage, and be sent to described digital processing module.
Further, described steps d realizes in the following manner:
After described digital processing module receives described voltage value signal via the analog input interface, elder generation carries out linear process via described compensating circuit and amplification is sent to described analog-to-digital conversion circuit, carry out obtaining digital signal after the A/D conversion through described analog-to-digital conversion circuit, described digital signal is converted to procotol via described data processing protocol modular converter, and is conveyed to described SR485 bus switching circuit.
pass through technique scheme, available described photoelectric temperature sensing device replaces traditional noble metal sensor in many commercial production, be about 4 ~ 5 times of noble metal sensor its serviceable life, can effectively reduce noble metal consumption, greatly reduce production costs, and because of high temperature signal through described temperature-sensing pipe, described light beam rearrangement module, described photoelectric conversion module, after described compensating circuit and described analog-to-digital conversion circuit are processed, be converted into procotol via described data processing protocol modular converter again, the data interference rejection ability is strong, in transmitting procedure, error is little, can reflect really the actual measurement temperature that detects in warm, and because described SR485 bus switching circuit converts the communication interface of described digital processing module to the SR485 Standard bus interface, thereby described measurement temperature value with the pattern of procotol can with a plurality of described photoelectric temperature sensing devices and the communication of many station terminals computer interconnection or networking, realize the collection of described measurement temperature value, Long-distance Control and management.
Description of drawings
The below is described in further detail the utility model according to embodiment and accompanying drawing.
Fig. 1 is the structural representation of a kind of photoelectric temperature sensor device in the utility model.
Fig. 2 is the theory diagram of a kind of photoelectric temperature sensor device in the utility model.
Fig. 3 is the process flow diagram of the measureing method of high-temperature in the utility model.
Embodiment
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.Should be pointed out that in this part that to the description of concrete structure and description order be only explanation to specific embodiment, should not be considered as that protection domain of the present utility model is had any restriction.
Please refer to Fig. 1 to Fig. 2, described photoelectric temperature sensing device comprises temperature-sensing pipe (1), beam treatment module (2), digital processing module (3) and SR485 bus switching circuit (4).
Described temperature-sensing pipe (1) is made of the material of corrosion-and high-temp-resistant, preferred diamond spar, pottery and other alloy material in the utility model, but the material of described temperature-sensing pipe (1) is not limited.
Described temperature-sensing pipe (1) is used for being positioned over the temperature that a detection temperature sensing detects the temperature field, when described temperature-sensing pipe (1) senses the temperature of test side, its inner meeting produces heat radiation and bright intensity, and the heat radiation that during the different temperatures temperature, described temperature-sensing pipe (1) produces and bright intensity are also different.
Please refer to Fig. 2, described beam treatment module (2) comprises light beam rearrangement module (21) and photoelectric conversion module (22).Described beam treatment module (2) is used for arranging the photoelectricity strength signal that described temperature-sensing pipe (1) passes over, thereby produces the light beam of certain rule.
Please refer to Figure 12, described photoelectric conversion module (22) comprises lens, light-conductive hole, photo-electric conversion element and light-sensitive surface.Described light-sensitive surface can produce different voltage signals and be used for passing to described digital processing module (3) under different bright intensity.
Please refer to Fig. 2, described digital processing module (3) comprises compensating circuit (31), analog-to-digital conversion circuit (32) and data processing protocol modular converter (33).
Described compensating circuit (31) is used for described voltage signal is carried out passing to described analog-to-digital conversion circuit (32) after linear process and amplification; Described analog-to-digital conversion circuit (32) can convert the voltage signal after linear process to the digital signal of measuring temperature value; Described data protocol modular converter (33) can be converted to the digital signal of described measurement temperature value specific procotol.
Please refer to Fig. 2, described SR485 bus switching circuit (4) can convert the communication interface of described digital processing module to the SR485 Standard bus interface, thus with the digital signal of described measurement temperature value with the pattern of procotol can with a plurality of described photoelectric temperature sensing devices and the communication of many station terminals computer interconnection or networking.
Please refer to Fig. 2, described photoelectric temperature sensing device also comprises power supply (5), is used for carrying out the electric power supply to each parts of described photoelectric temperature sensor device.
Please refer to Fig. 2 and Fig. 3, when using described photoelectric temperature sensing device to carry out high temperature measurement, mainly comprise the following steps:
Step a, described temperature-sensing pipe (1) is positioned over detects in temperature, inner heat radiation and the bright intensity of producing of described temperature-sensing pipe (1) forms light beam;
Step b, described light beam are conveyed to described photoelectric conversion module (22) after arranging through light beam rearrangement module (21);
Step c, described light beam produce magnitude of voltage, and are sent to described digital processing module (3) by guiding and the arrangement of described photoelectric conversion module (22);
Steps d, described digital processing module (3) carry out obtaining measuring temperature value after calculation process to described light beam, and described measurement temperature value are conveyed to described SR485 bus switching circuit (4);
Step e, described SR485 bus switching circuit (4) convert the communication interface of described digital processing module (3) to the SR485 Standard bus interface, thereby described measurement temperature value with the pattern of procotol can with a plurality of described photoelectric temperature sensing devices and the communication of many station terminals computer interconnection or networking, realize collection, Long-distance Control and the management of described measurement temperature value.
Please refer to Fig. 2 and Fig. 3, wherein said step c is specially: described light beam by described photoelectric conversion module (22) lens and after light-conductive hole guides and arranges the light velocity, on the light-sensitive surface of irradiation to described photoelectric conversion module (22), thereby the generation magnitude of voltage, and be sent to described digital processing module (3).
Please refer to Fig. 2 and Fig. 3, wherein said steps d is specially: after described digital processing module (3) receives described voltage value signal via the analog input interface, elder generation carries out linear process via described compensating circuit (31) and amplification is sent to described analog-to-digital conversion circuit (32), carry out obtaining digital signal after the A/D conversion through described analog-to-digital conversion circuit (32), described digital signal is converted to procotol via described data processing protocol modular converter (33), and is conveyed to described SR485 bus switching circuit (4).
The beneficial effect that can be brought by technique scheme is:
1, replace traditional noble metal sensor with described photoelectric temperature sensor, its long service life is about 4 ~ 5 times of noble metal sensor;
2, replace traditional noble metal sensor with described photoelectric temperature sensor, can effectively reduce noble metal consumption, greatly reduce production costs;
3, because of high temperature signal after described temperature-sensing pipe, described light beam rearrangement module, described photoelectric conversion module, described compensating circuit and described analog-to-digital conversion circuit are processed, be converted into procotol via described data processing protocol modular converter again, the data interference rejection ability is strong, in transmitting procedure, error is little, can reflect really the actual measurement temperature that detects in warm;
4, convert the communication interface of described digital processing module to the SR485 Standard bus interface because of described SR485 bus switching circuit, thereby described measurement temperature value with the pattern of procotol can with a plurality of described photoelectric temperature sensing devices and the communication of many station terminals computer interconnection or networking, can realize collection, Long-distance Control and the management of described measurement temperature value.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a photoelectric temperature sensing device, comprise temperature-sensing pipe (1), beam treatment module (2) and digital processing module (3), it is characterized in that, also comprises SR485 bus switching circuit (4); Described beam treatment module (2) comprises light beam rearrangement module (21) and photoelectric conversion module (22).
2. photoelectric temperature sensing device as claimed in claim 1, is characterized in that, described digital processing module (3) comprises compensating circuit (31), analog-to-digital conversion circuit (32) and data processing protocol modular converter (33).
3. photoelectric temperature sensing device as claimed in claim 1 or 2, is characterized in that, described photoelectric conversion module (22) comprises lens, light-conductive hole, photo-electric conversion element and light-sensitive surface.
4. photoelectric temperature sensing device as claimed in claim 1, is characterized in that, described temperature-sensing pipe (1) is made of the material of corrosion-and high-temp-resistant.
5. photoelectric temperature sensing device as claimed in claim 1, is characterized in that, the material of described temperature-sensing pipe (1) is diamond spar.
6. photoelectric temperature sensing device as claimed in claim 1, is characterized in that, the material of described temperature-sensing pipe (1) is pottery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220198742 CN202938913U (en) | 2012-05-04 | 2012-05-04 | Photoelectric temperature sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220198742 CN202938913U (en) | 2012-05-04 | 2012-05-04 | Photoelectric temperature sensing device |
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| Publication Number | Publication Date |
|---|---|
| CN202938913U true CN202938913U (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220198742 Expired - Fee Related CN202938913U (en) | 2012-05-04 | 2012-05-04 | Photoelectric temperature sensing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661802A (en) * | 2012-05-04 | 2012-09-12 | 安徽博源自动化仪表有限公司 | Photoelectric temperature sensing device and high temperature measuring method based on photoelectric temperature sensing device |
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2012
- 2012-05-04 CN CN 201220198742 patent/CN202938913U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661802A (en) * | 2012-05-04 | 2012-09-12 | 安徽博源自动化仪表有限公司 | Photoelectric temperature sensing device and high temperature measuring method based on photoelectric temperature sensing device |
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| Date | Code | Title | Description |
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| 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: 20130515 Termination date: 20140504 |