CN202748313U - Error detection and elimination system of visibility detection instrument - Google Patents
Error detection and elimination system of visibility detection instrument Download PDFInfo
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- CN202748313U CN202748313U CN 201220485286 CN201220485286U CN202748313U CN 202748313 U CN202748313 U CN 202748313U CN 201220485286 CN201220485286 CN 201220485286 CN 201220485286 U CN201220485286 U CN 201220485286U CN 202748313 U CN202748313 U CN 202748313U
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Abstract
The utility model discloses an error detection and elimination system of a visibility detection instrument. The error detection and elimination system comprises two sets of light path systems, two sets of I/V conversion circuit, two sets of signal amplification circuits and an AD conversion circuit, which are sequentially connected with one another, wherein the light path directions of the two light path systems are opposite to each other, and each light path system is successively connected with one I/V conversion circuit and one signal amplification circuit; and a differential circuit is also arranged between the two signal amplification circuits and the AD conversion circuit. The error detection and elimination system adopts two light paths for simultaneously collecting signals and can directly detect and eliminate systematic errors of the visibility detection instrument by virtue of corresponding circuit processing, so that the frequency of duplicate detection is greatly reduced, the period of fitting a systematic error curve is greatly shortened, the comparison accuracy is higher, and a correction result is closer to a true value.
Description
Technical field
The utility model relates to a kind of error-detecting and eliminates system, and specifically, system is eliminated in the error-detecting that relates to a kind of visibility detecting instrument.
Background technology
The visibility detector, as its name suggests, for detection of the instrument of visibility.An important step namely is to carry out error concealment in visibility detects, this error cancelling method is: measure each time an experimental data by a photoelectric testing sensor and a circuit, then in repeatedly measuring, obtain a plurality of data, then according to all data fitting systematic error curves, and revise.
This error cancelling method need to carry out a large amount of data acquisitions, and then carries out artificial Freehandhand-drawing match, and workload is huge and relatively repeat, and has increased the data molding cycle that visibility detects, and loses time.
The utility model content
The purpose of this utility model is to provide a kind of error-detecting of visibility detecting instrument to eliminate system, solve traditional visibility detecting instrument and carry out that the error concealment workload is huge and the repetition degree is high, has increased the problem of the data molding cycle that visibility detects.
To achieve these goals, the technical solution adopted in the utility model is as follows:
System is eliminated in the error-detecting of visibility detecting instrument, comprise the light path system, I/V change-over circuit, signal amplification circuit, the A/D convertor circuit that connect successively, wherein, described light path system, I/V change-over circuit, signal amplification circuit are two covers, the optical path direction of this two covers light path system is opposite, and every cover light path system all connects a cover I/V change-over circuit and a cover signal amplification circuit successively, also is provided with difference channel between two cover signal amplification circuits and the A/D convertor circuit.
Further, described light path system comprises light source and the acquisition sensor of mutual coupling, and this acquisition sensor is connected with the I/V change-over circuit.
As a kind of preferred, described acquisition sensor is the optical signal detection sensor, and described I/V change-over circuit is photosignal I/V change-over circuit, and described difference channel is difference optical filtering circuit.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model is simple in structure, and is easy to use, is fit to apply.
(2) the utility model becomes double light path with the monochromatic light road of traditional visibility detecting instrument, one-time detection obtains two signal datas, and the signal of two light paths processed, the systematic error of visibility detecting instrument is eliminated in contrast, compare traditional monochromatic light road repeated detection, greatly reduce the number of times of duplicate detection, greatly shortened match systematic error curve cycle.
(3) the utility model has been realized real-time contrast and the signal errors analysis of input by two light paths are set, and compares repeatedly contrast and the signal analysis of single photo path, and its contrast precision is higher, and correction result is more accurate, more near actual value.
Description of drawings
Fig. 1 is theory diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, and embodiment of the present utility model includes but not limited to the following example.
Embodiment
As shown in Figure 1, system is eliminated in the error-detecting of this visibility detecting instrument, comprise the two opposite light path systems of cover light paths and I/V change-over circuit, the signal amplification circuit corresponding with light path system respectively, and with the signal amplification circuit difference channel that all is connected and the A/D convertor circuit that is connected with difference channel.Wherein, light path system comprises light source and the acquisition sensor of mutual coupling, and this acquisition sensor is connected with the I/V change-over circuit.As a kind of preferred, this acquisition sensor is the optical signal detection sensor, and this I/V change-over circuit is photosignal I/V change-over circuit, and this difference channel is difference optical filtering circuit.
Specifically, two cover light path systems all are arranged on the monitor station of visibility detecting instrument, optical signal detection sensor in light source in the first set light path system and the second cover light path system all is positioned at the same side of monitor station, correspondingly, the light source in the optical signal detection sensor in the first set light path system and the second cover light path system all is positioned at the opposite side of monitor station.The output terminal of two cover optical signal detection sensors is connected with the input end of a cover photosignal I/V change-over circuit respectively, the output terminal of photosignal I/V change-over circuit is connected with the input end of signal amplification circuit, the output terminal of two signal amplification circuits all is connected with the input end of difference optical filtering circuit, the output terminal of difference optical filtering circuit is connected with the input end of A/D convertor circuit, and the output terminal of A/D convertor circuit connects the computing system of visibility detecting instrument.
When detecting, two light sources are all launched light beam, optical signal detection sensor receiving beam and transmitting optical signal, light signal changes electric signal into through photosignal I/V change-over circuit, electric signal is amplified by signal amplification circuit and process difference optical filtering processing of circuit, transfer to A/D convertor circuit and be converted into digital signal, the computing system that this digital signal transfers to the visibility detecting instrument again analyzes.Then carry out detailed computational analysis, contrast, get final product the systematic error of cancellation visibility detecting instrument, improve accuracy of detection.
Each components and parts and circuit are prior art in the utility model, just more do not speak more bright at this.
According to above-described embodiment, just can realize well the utility model.
Claims (5)
1. system is eliminated in the error-detecting of visibility detecting instrument, comprise the light path system, I/V change-over circuit, signal amplification circuit, the A/D convertor circuit that connect successively, it is characterized in that, described light path system, I/V change-over circuit, signal amplification circuit are two covers, the optical path direction of this two covers light path system is opposite, and every cover light path system all connects a cover I/V change-over circuit and a cover signal amplification circuit successively, also is provided with difference channel between two cover signal amplification circuits and the A/D convertor circuit.
2. system is eliminated in the error-detecting of visibility detecting instrument according to claim 1, it is characterized in that, described light path system comprises light source and the acquisition sensor of mutual coupling, and this acquisition sensor is connected with the I/V change-over circuit.
3. system is eliminated in the error-detecting of visibility detecting instrument according to claim 2, it is characterized in that, described acquisition sensor is the optical signal detection sensor.
4. system is eliminated in the error-detecting of visibility detecting instrument according to claim 3, it is characterized in that, described I/V change-over circuit is photosignal I/V change-over circuit.
5. system is eliminated in the error-detecting of each described visibility detecting instrument according to claim 1～4, it is characterized in that, described difference channel is difference optical filtering circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220485286 CN202748313U (en) | 2012-09-21 | 2012-09-21 | Error detection and elimination system of visibility detection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220485286 CN202748313U (en) | 2012-09-21 | 2012-09-21 | Error detection and elimination system of visibility detection instrument |
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| Publication Number | Publication Date |
|---|---|
| CN202748313U true CN202748313U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220485286 Expired - Fee Related CN202748313U (en) | 2012-09-21 | 2012-09-21 | Error detection and elimination system of visibility detection instrument |
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| CN (1) | CN202748313U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197358A (en) * | 2013-04-23 | 2013-07-10 | 安徽中瑞电气技术有限公司 | Meteorological monitoring system |
| CN106525750A (en) * | 2016-12-26 | 2017-03-22 | 安徽省碧水电子技术有限公司 | Water quality detecting system with lightning protection system |
| CN106596433A (en) * | 2016-12-26 | 2017-04-26 | 安徽省碧水电子技术有限公司 | Water quality detection system provided with heating system |
| CN106644995A (en) * | 2016-12-26 | 2017-05-10 | 安徽省碧水电子技术有限公司 | Water quality detection system based on ultraviolet visible spectrum detection |
| CN106769967A (en) * | 2016-12-26 | 2017-05-31 | 安徽省碧水电子技术有限公司 | A kind of water quality detection system with voice broadcast module |
| CN106841060A (en) * | 2016-12-26 | 2017-06-13 | 安徽省碧水电子技术有限公司 | A kind of water quality detection system with standard value contrast |
-
2012
- 2012-09-21 CN CN 201220485286 patent/CN202748313U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197358A (en) * | 2013-04-23 | 2013-07-10 | 安徽中瑞电气技术有限公司 | Meteorological monitoring system |
| CN103197358B (en) * | 2013-04-23 | 2015-04-08 | 安徽中瑞电气技术有限公司 | Meteorological monitoring system |
| CN106525750A (en) * | 2016-12-26 | 2017-03-22 | 安徽省碧水电子技术有限公司 | Water quality detecting system with lightning protection system |
| CN106596433A (en) * | 2016-12-26 | 2017-04-26 | 安徽省碧水电子技术有限公司 | Water quality detection system provided with heating system |
| CN106644995A (en) * | 2016-12-26 | 2017-05-10 | 安徽省碧水电子技术有限公司 | Water quality detection system based on ultraviolet visible spectrum detection |
| CN106769967A (en) * | 2016-12-26 | 2017-05-31 | 安徽省碧水电子技术有限公司 | A kind of water quality detection system with voice broadcast module |
| CN106841060A (en) * | 2016-12-26 | 2017-06-13 | 安徽省碧水电子技术有限公司 | A kind of water quality detection system with standard value contrast |
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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: 20130220 Termination date: 20130921 |