CN203672782U - Spectral data acquisition system based on singlechip control - Google Patents
Spectral data acquisition system based on singlechip control Download PDFInfo
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- CN203672782U CN203672782U CN201320758951.6U CN201320758951U CN203672782U CN 203672782 U CN203672782 U CN 203672782U CN 201320758951 U CN201320758951 U CN 201320758951U CN 203672782 U CN203672782 U CN 203672782U
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- chip microcomputer
- data gathering
- gathering system
- photomultiplier
- processor controlled
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Abstract
The utility model discloses a spectral data acquisition system based on singlechip control. The spectral data acquisition system comprises a charge coupling module and a photoelectric multiplier module which are respectively connected with a singlechip and both act on a spectrum to be detected, wherein the singlechip is further connected with multiway select switches and an A/D sampling circuit which are controlled by the singlechip and are connected with each other; the multiway select switches are signal gating devices respectively connected with the charge coupling module and the photoelectric multiplier module; the A/D sampling circuit is a digital conversion module connected with a computer. The spectral data acquisition system is reasonable in design, and can perform spectral measurement under the control of the singlechip regardless of the strength change of the spectrum to be detected, so that spectral measurement operation steps are greatly simplified, and the spectral data acquisition system has the advantages of high measurement speed, high accuracy and the like.
Description
Technical field
The utility model relates to data collecting field, specifically, is a kind of based on monolithic processor controlled spectrum data gathering system.
Background technology
Spectrometer is that one can capture and develops or automatically show the scientific instrument of numerical value by computing machine with photographic negative optical information (as resolved into the spectrum line forming by light), can be used for predicting the content of various elements in article, be often applied to as in the fields such as the measurement of concetration of color measuring, chemical analysis or radiometry analysis, film thickness measuring, gas composition analysis.In spectral measurement, the collection that realizes spectral signal by single-chip microcomputer is the comparatively simple method of one, but based on its present situation, we know, the existing spectrometer of selling on the market comprises two types, and their difference is mainly the difference of photoelectric commutator, and one is to adopt photomultiplier (PMT) as photoelectric commutator, as shown in Figure 1, be generally used for changing in spectral measurement slow and that precision is high; Another kind adopts charge-coupled device (CCD) as photoelectric commutator, as shown in Figure 2, be generally used for flashlamp, fluorescence and phosphorescence equal strength can time dependent spectral measurement in.Based on above-mentioned situation, we know, in actual mechanical process, if need measure number of chemical composition time, conventionally need jointly complete by two kinds of dissimilar spectrometers, not only increase the step of test operation, more reduce testing efficiency, therefore, the utility model arises at the historic moment.
Utility model content
It is a kind of based on monolithic processor controlled spectrum data gathering system that the purpose of this utility model is to provide, easy to operate, can be according to the difference of tested spectral light signal, select different measuring state by multidiameter option switch, and detect, judge and carry out corresponding operation by single-chip microcomputer, complete the collection to multi-form input signal, the spectral intensity collecting is sent into computing machine again and is processed, calculates, and show and print the curve of spectrum to there is the advantages such as measuring speed is fast, accuracy is high.
The utility model is achieved through the following technical solutions: a kind of based on monolithic processor controlled spectrum data gathering system, this system integrates existing two kinds of optical spectrum instrumentations, comprise the electric charge coupling module and the photomultiplier transit module that are connected with single-chip microcomputer respectively, electric charge coupling module and photomultiplier transit module all act on tested spectrum, on single-chip microcomputer, be also connected with by Single-chip Controlling and interconnective multidiameter option switch and A/D sample circuit, multidiameter option switch is the signal gating device being connected with electric charge coupling module and photomultiplier respectively, A/D sample circuit is the data-converting block being connected with computing machine, in the utility model, single-chip microcomputer can multidiameter option switch and A/D sample circuit control, complete detection, the corresponding operatings such as judgement, thereby according to the difference of tested spectral light signal, multi-form input signal is gathered, sending into computing machine by A/D sample circuit again processes and calculates, simple to operate, fast.
For better realizing said structure, the work of electric charge coupling module and photomultiplier transit module is controlled by single-chip microcomputer, and concrete structure can be summarized as follows:
(1) described electric charge coupling module is mainly made up of interconnective CCD timing sequence generating circuit and CCD sampling head, and CCD timing sequence generating circuit is connected on single-chip microcomputer, and CCD sampling head acts on tested spectrum and with multidiameter option switch and is connected.
(2) described photomultiplier transit module is mainly made up of interconnective high-voltage adjusting circuit and photomultiplier, and high-voltage adjusting circuit is connected on single-chip microcomputer, and photomultiplier acts on tested spectrum and with multidiameter option switch and is connected.
For better realizing the control of single-chip microcomputer to multidiameter option switch, the utility model is also connected with the signal selecting switch of controlling multidiameter option switch on described single-chip microcomputer, staff can be by signal selecting switch in advance to single-chip microcomputer input control signal, in the time that reality is used, single-chip microcomputer is controlled multidiameter option switch according to this control signal, thereby realizes the gating of CCD sampling head or photomultiplier.
For better realizing the utility model, on described A/D sample circuit, be also provided with the storer for sampled signal storage, A/D sample circuit connects on computers by storer.
The utility model circuit structure is simple, is also provided with the parallel interface connecting for storer on described computing machine.
In the utility model, described single-chip microcomputer is AT89C52; Described A/D sample circuit is MAX120.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model integrates existing two kinds of optical spectrum instrumentations measuring respectively different light signals, no matter the strong and weak speed changing of tested spectrum, all can measure by same instrument, it is very reasonable to design, not only greatly the simplification of degree the operation steps of spectral measurement, meanwhile, also there is the advantages such as measuring speed is fast, accuracy is high.
(2) the utility model adopts the design of multidiameter option switch to realize the conversion of photoelectric commutator, come single-chip microcomputer input control signal by signal selecting switch, in actual mechanical process, single-chip microcomputer is controlled multidiameter option switch according to this control signal, thereby realize the gating of photoelectric commutator (that is: CCD sampling head or photomultiplier), simple to operate, quick.
(3) the utility model is simple in structure, A/D sample circuit is successively by storer, parallel interface and computer communication, completed again the processing of spectroscopic data by computing machine, in current application, storer can be realized the storage of sampled data, the design of parallel interface is very practical and convenient, and meets the various requirement of spectral measurement.
Brief description of the drawings
Fig. 1 is CCD spectrum data gathering schematic diagram.
Fig. 2 is PMT spectrum data gathering schematic diagram.
Fig. 3 is structural representation of the present utility model.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment:
Existing spectrometer comprises two kinds of structures, and as shown in Figure 1 and Figure 2, its difference is the photoelectric commutator difference adopting, and a kind of charge-coupled device (CCD) that adopts is generally used for changing in spectral measurement slow and that precision is high, another kind adopts photomultiplier (PMT), be generally used for flashlamp, fluorescence and phosphorescence equal strength can time dependent spectral measurement in, in the time that reality is used, the signal form of PMT and CCD output is different: PMT output be continuous simulating signal, what CCD exported is video pulse signal, certainly, due to the difference of output signal, corresponding signal acquisition circuit is also not quite similar, for this reason, the utility model proposes a kind of based on monolithic processor controlled spectrum data gathering system, this system integrates above-mentioned two kinds of optical spectrum instrumentations, concrete structure as shown in Figure 3, mainly formed by the electric charge coupling module being connected with single-chip microcomputer respectively and photomultiplier transit module, wherein, electric charge coupling module and photomultiplier transit module all act on tested spectrum, on single-chip microcomputer, be also connected with by Single-chip Controlling and interconnective multidiameter option switch and A/D sample circuit, multidiameter option switch is the signal gating device being connected with electric charge coupling module and photomultiplier respectively, A/D sample circuit is the data-converting block being connected with computing machine, in the utility model, single-chip microcomputer can multidiameter option switch and A/D sample circuit control, complete detection, the corresponding operatings such as judgement, thereby according to the difference of tested spectral light signal, multi-form input signal is gathered, sending into computing machine by A/D sample circuit again processes and calculates, have simple to operate, measuring speed is fast, accuracy advantages of higher.
As shown in Figure 3, electric charge coupling module is mainly made up of interconnective CCD timing sequence generating circuit and CCD sampling head, and CCD timing sequence generating circuit is connected on single-chip microcomputer, and CCD sampling head acts on tested spectrum and with multidiameter option switch and is connected; Photomultiplier transit module is mainly made up of interconnective high-voltage adjusting circuit and photomultiplier, and high-voltage adjusting circuit is connected on single-chip microcomputer, and photomultiplier acts on tested spectrum and with multidiameter option switch and is connected.In actual mechanical process, single-chip microcomputer (AT89C52) is controlled multidiameter option switch according to this control signal, thereby realizes the gating of photoelectric commutator (that is: CCD sampling head or photomultiplier).Certainly, for better realizing the control of single-chip microcomputer to multidiameter option switch, the utility model is also connected with the signal selecting switch of controlling multidiameter option switch on single-chip microcomputer, staff can be by signal selecting switch in advance to single-chip microcomputer input control signal, in the time that reality is used, single-chip microcomputer is controlled multidiameter option switch according to this control signal, thereby realizes the gating of CCD sampling head or photomultiplier.
In the utility model, A/D sample circuit can adopt MAX120, as shown in Figure 3, pass through successively storer, serial line interface and computer communication, in said structure, storer can be used for the storage of sampled signal, the design of parallel interface is very practical and convenient, and meet the various requirement of spectral measurement, taking the collection of photomultiplier output signal as example, in spectral measurement process, the high-voltage adjusting circuit of the signal acquisition process control photomultiplier transit module being completed by single-chip microcomputer, and control the collection of photomultiplier settling signal with this, the transmission of data storage and data, storer is completed by a slice 6264 storage chips, and the spectral intensity collecting is sent into computing machine by parallel interface and process.
The utility model is reasonable in design, no matter the strong and weak speed changing of tested spectrum all can carry out spectral measurement under the control of single-chip microcomputer, not only greatly the simplification of degree the operation steps of spectral measurement, meanwhile, also there is the advantages such as measuring speed is fast, accuracy is high.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment, within all falling into protection domain of the present utility model.
Claims (8)
1. one kind based on monolithic processor controlled spectrum data gathering system, it is characterized in that: comprise the electric charge coupling module and the photomultiplier transit module that are connected with single-chip microcomputer respectively, electric charge coupling module and photomultiplier transit module all act on tested spectrum, on single-chip microcomputer, be also connected with by Single-chip Controlling and interconnective multidiameter option switch and A/D sample circuit, multidiameter option switch is the signal gating device being connected with electric charge coupling module and photomultiplier respectively, and A/D sample circuit is the data-converting block being connected with computing machine.
2. one according to claim 1 is based on monolithic processor controlled spectrum data gathering system, it is characterized in that: described electric charge coupling module is mainly made up of interconnective CCD timing sequence generating circuit and CCD sampling head, CCD timing sequence generating circuit is connected on single-chip microcomputer, and CCD sampling head acts on tested spectrum and with multidiameter option switch and is connected.
3. one according to claim 2 is based on monolithic processor controlled spectrum data gathering system, it is characterized in that: described photomultiplier transit module is mainly made up of interconnective high-voltage adjusting circuit and photomultiplier, high-voltage adjusting circuit is connected on single-chip microcomputer, and photomultiplier acts on tested spectrum and with multidiameter option switch and is connected.
4. one according to claim 3, based on monolithic processor controlled spectrum data gathering system, is characterized in that: on described single-chip microcomputer, be also connected with the signal selecting switch of controlling multidiameter option switch.
According to the one described in claim 1～4 any one based on monolithic processor controlled spectrum data gathering system, it is characterized in that: on described A/D sample circuit, be also provided with the storer for sampled signal storage, A/D sample circuit connects on computers by storer.
6. one according to claim 5, based on monolithic processor controlled spectrum data gathering system, is characterized in that: on described computing machine, be also provided with the parallel interface connecting for storer.
7. one according to claim 6, based on monolithic processor controlled spectrum data gathering system, is characterized in that: described single-chip microcomputer is AT89C52.
8. one according to claim 7, based on monolithic processor controlled spectrum data gathering system, is characterized in that: described A/D sample circuit is MAX120.
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| CN201320758951.6U CN203672782U (en) | 2013-11-27 | 2013-11-27 | Spectral data acquisition system based on singlechip control |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136666A (en) * | 2015-08-31 | 2015-12-09 | 无锡伊佩克科技有限公司 | Spectral data collection system |
| CN105181139A (en) * | 2015-08-31 | 2015-12-23 | 无锡伊佩克科技有限公司 | Spectral data acquisition system based on phase-shifted full-bridge switch power supply controller |
| CN105222893A (en) * | 2015-08-31 | 2016-01-06 | 无锡伊佩克科技有限公司 | A kind of spectrum data gathering system based on high-voltage adjusting circuit |
-
2013
- 2013-11-27 CN CN201320758951.6U patent/CN203672782U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136666A (en) * | 2015-08-31 | 2015-12-09 | 无锡伊佩克科技有限公司 | Spectral data collection system |
| CN105181139A (en) * | 2015-08-31 | 2015-12-23 | 无锡伊佩克科技有限公司 | Spectral data acquisition system based on phase-shifted full-bridge switch power supply controller |
| CN105222893A (en) * | 2015-08-31 | 2016-01-06 | 无锡伊佩克科技有限公司 | A kind of spectrum data gathering system based on high-voltage adjusting circuit |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141127 |
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| EXPY | Termination of patent right or utility model |