CN105699336A - Method, system and device for detecting luminousness of medium pervious to light - Google Patents
Method, system and device for detecting luminousness of medium pervious to light Download PDFInfo
- Publication number
- CN105699336A CN105699336A CN201610173649.2A CN201610173649A CN105699336A CN 105699336 A CN105699336 A CN 105699336A CN 201610173649 A CN201610173649 A CN 201610173649A CN 105699336 A CN105699336 A CN 105699336A
- Authority
- CN
- China
- Prior art keywords
- light
- receiving end
- photoelectric current
- luminous
- permeable medium
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses a method, a system and a device for detecting the luminousness of a medium pervious to light. The method comprises the following steps: obtaining first light current I1 converted from a first light beam received by the light interception end of a separated type photoelectric sensor after the luminescence end of the separated type photoelectric sensor emits a detection light beam, wherein a distance between the luminescence end and the light interception end is fixed, and the light interception end works in an amplifier region; obtaining second light current I2 converted from a second light beam received by the light interception end after the luminescence end emits the detection light beam when the to-be-detected medium pervious to light is arranged between the luminescence end and the light interception end; according to the first light current I1 and the second light current I2, calculating the luminousness of the to-be-detected medium pervious to light. The problem that the luminousness of the medium pervious to light is difficult to detect is solved, and the detection cost of the luminousness of the medium pervious to light is greatly lowered.
Description
Technical field
The present invention relates to light transmittance detection technique field, particularly relate to a kind of method, system and device detecting light-permeable medium light transmittance。
Background technology
At present, test light-permeable medium light transmittance, it is adopt dedicated light-intensity tester, light intensity test instrument is made up of luminous end and light intensity test end, under the environment not having external interference light, the light intensity that light intensity test end when testing respectively with or without medium is tested, then calculates the light transmittance of light-permeable medium again。This dedicated light-intensity tester costly, troublesome poeration, not high in some company's utilization rate yet。Therefore, how obtaining simplicity, it is urgent problem that the method and apparatus that cost is low is used for the test of light-permeable medium light transmittance。
Summary of the invention
The invention provides a kind of method, system and device detecting light-permeable medium light transmittance, the method, system and device all solve light-permeable medium light transmittance how low cost, the problem of easy detection。
For realizing above-mentioned design, the present invention by the following technical solutions:
First aspect, it is provided that a kind of method detecting light-permeable medium light transmittance, the method includes:
The first photoelectric current I1 that the first light beam that after obtaining the luminous end transmitting detection light beam of divergence type photoelectric sensor, the light-receiving end of described divergence type photoelectric sensor receives converts；Wherein, the distance of described luminous end and described light-receiving end is fixed, and described light-receiving end is operated in amplification region；
Obtain the second photoelectric current I2 that the second light beam that after the luminous end when light-permeable medium to be measured is placed between luminous end and light-receiving end launches described detection light beam, light-receiving end receives converts；
The light transmittance of described light-permeable medium to be measured is calculated according to described first photoelectric current I1 and described second photoelectric current I2。
Wherein, described according to described first photoelectric current I1 and the described second photoelectric current I2 computing formula of light transmittance that calculates described light-permeable medium to be measured be: T=I2/I1*100%。
Second aspect, it is provided that a kind of system detecting light-permeable medium light transmittance, this system includes:
First acquiring unit, the first photoelectric current I1 that the first light beam that after obtaining the luminous end transmitting detection light beam of divergence type photoelectric sensor, the light-receiving end of described divergence type photoelectric sensor receives converts；Wherein, the distance of described luminous end and described light-receiving end is fixed, and described light-receiving end is operated in amplification region；
Second acquisition unit, obtains the second photoelectric current I2 that the second light beam that after the luminous end when light-permeable medium to be measured is placed between luminous end and light-receiving end launches described detection light beam, light-receiving end receives converts；
Computing unit, calculates the light transmittance of described light-permeable medium to be measured according to described first photoelectric current I1 and described second photoelectric current I2。
Wherein, described according to described first photoelectric current I1 and the described second photoelectric current I2 computing formula of light transmittance that calculates described light-permeable medium to be measured be: T=I2/I1*100%。
The third aspect, it is provided that a kind of device detecting light-permeable medium light transmittance, this device includes: divergence type photoelectric sensor, and the distance of the light-receiving end of the luminous end of described divergence type photoelectric sensor and described divergence type photoelectric sensor is fixed；Wherein, light-receiving end is operated in amplification region；
During detection, luminous end launches detection light beam, and light-receiving end receives the first light beam, is converted into the first photoelectric current I1；When light-permeable medium to be measured is placed between luminous end and light-receiving end, luminous end launches described detection light beam, and light-receiving end receives the second light beam, is converted into the second photoelectric current I2；The light transmittance of described light-permeable medium to be measured is calculated according to described first photoelectric current I1 and described second photoelectric current I2。
Wherein, this device also includes: fixed frame, and described luminous end and light-receiving end are each attached on described fixed frame。
Wherein, also include: adjustable resistance and the first ammeter；
Described luminous end includes light emitting diode；
One end of described adjustable resistance connects detection power supply, and the other end of adjustable resistance connects the positive pole of described first ammeter, and the negative pole of the first ammeter connects the positive pole of described light emitting diode, the minus earth of light emitting diode。
Wherein, this device also includes: the second ammeter；
Described light-receiving end includes phototriode；Described phototriode is NPN type phototriode；
The positive pole of described second ammeter connects detection power supply, and the negative pole of the second ammeter connects the colelctor electrode of described phototriode, the grounded emitter of phototriode。
Wherein, this device also includes: circuit board, and described circuit board is provided with power supply changeover device, and external power source is converted to detection power supply by described power supply changeover device, and detection power supply is luminous end and light-receiving end is powered, and described circuit board is fixed on described fixed frame。
The invention have the benefit that this method pass through obtain divergence type photoelectric sensor luminous end launch detection light beam after described divergence type photoelectric sensor light-receiving end receive first light beam convert the first photoelectric current I1；Wherein, the distance of described luminous end and described light-receiving end is fixed, and described light-receiving end is operated in amplification region；Obtain the second photoelectric current I2 that the second light beam that after the luminous end when light-permeable medium to be measured is placed between luminous end and light-receiving end launches described detection light beam, light-receiving end receives converts；The light transmittance of described light-permeable medium to be measured is calculated according to described first photoelectric current I1 and described second photoelectric current I2。In the present invention, luminous end and the light-receiving end space of divergence type photoelectric sensor are installed separately, when luminous end launches detection light beam, when placing light-permeable medium to be measured between luminous end and light-receiving end and do not place light-permeable medium to be measured, the light beam that light-receiving end receives is different, the audion utilizing light-receiving end amplifies the scaling characteristic of state, and the beam intensity that receives of light-receiving end and the proportional relation of photocurrent values, when the different light beam successively received for twice, different photoelectric currents can be obtained, the light transmittance of light-permeable medium can be calculated according to the relation between photoelectric current。Thus solving the problem that light-permeable medium light transmittance is detected, and the present invention detects simplicity, and cost is low。
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, below the accompanying drawing used required during the embodiment of the present invention is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to content according to embodiments of the present invention and these accompanying drawings obtain other accompanying drawing。
Fig. 1 is the method flow diagram of a kind of method detecting light-permeable medium light transmittance provided in the specific embodiment of the invention。
Fig. 2 is the block diagram of a kind of system detecting light-permeable medium light transmittance provided in the specific embodiment of the invention。
Fig. 3 is the structural representation of a kind of device detecting light-permeable medium light transmittance provided in the specific embodiment of the invention。
Fig. 4 is another structural representation of a kind of device detecting light-permeable medium light transmittance provided in the specific embodiment of the invention。
Fig. 5 is the luminous end circuit diagram of a kind of device detecting light-permeable medium light transmittance in the specific embodiment of the invention。
Fig. 6 is the light-receiving end circuit diagram of a kind of device detecting light-permeable medium light transmittance in the specific embodiment of the invention。
Accompanying drawing labelling
1. luminous end (luminous end) the 2. luminous end of divergence type photoelectric sensor connects light path lens 10. light-permeable medium 11. to be measured adjustable resistance 12. first ammeter 13. light emitting diode 14. phototriode of light path lens 8. second ammeter 9. light-receiving end of light-receiving end (light-receiving end) the 7. luminous end of cable 3. fixed frame 4. circuit board 5. light-receiving end connection cable 6. divergence type photoelectric sensor
Detailed description of the invention
For the technical scheme making to present invention solves the technical problem that, adopting and the technique effect reached clearly, below in conjunction with accompanying drawing, the technical scheme of the embodiment of the present invention is described in further detail, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, the every other embodiment that those skilled in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention。
Refer to Fig. 1, it is the method flow diagram of a kind of method detecting light-permeable medium light transmittance provided in the specific embodiment of the invention。As it can be seen, the method, including:
Step S101: the first photoelectric current I1 that the first light beam that after obtaining the luminous end transmitting detection light beam of divergence type photoelectric sensor, the light-receiving end of described divergence type photoelectric sensor receives converts；Wherein, the distance of described luminous end and described light-receiving end is fixed, and described light-receiving end is operated in amplification region。
When light-permeable medium being carried out light transmittance detection, when not placing light-permeable medium to be measured between the luminous end and light-receiving end of divergence type photoelectric sensor, after the luminous end of divergence type photoelectric sensor launches detection light beam, the light-receiving end of divergence type photoelectric sensor receives the first light beam, and described first light beam is converted into the first photoelectric current I1 by the light-receiving end of divergence type photoelectric sensor。Described light-receiving end is operated in amplification region, the photoelectric current that the feature of amplification region work is luminous energy and the conversion accepted is directly proportional, ratio can be approximately constant, the light intensity of the detection light beam then launched at luminous end is more strong, the first light beam that light-receiving end receives is also more strong, thus the first photoelectric current I1 changed into is more big。And when a light-permeable medium is detected, when placing light-permeable medium and not placing light-permeable medium to be measured, the detection light beam that luminous end is launched is identical。The distance of described luminous end and described light-receiving end is fixed, thus when carrying out step S102, only changes whether place this condition of light-permeable medium, advantageously ensures that the accuracy rate to light-permeable medium light transmittance to be measured detection。
Step S102: obtain the second photoelectric current I2 that the second light beam that after the luminous end when light-permeable medium to be measured is placed between luminous end and light-receiving end launches described detection light beam, light-receiving end receives converts。
When same with the step S101 environment facies detected, light-permeable medium to be measured is placed between the luminous end and light-receiving end of divergence type photoelectric sensor, luminous end launches described detection light beam, described detection light beam is mapped on light-permeable medium to be measured, light-receiving end is reached through light-permeable medium to be measured, in the transmitting procedure from luminous end to light-receiving end, detection light beam has weakened into the second light beam, and described second light beam is changed into the second photoelectric current I2 by light-receiving end。Wherein, described second light beam is changed into the transforming relationship of the second photoelectric current I2 and is converted into the identical of the first photoelectric current I1 with the first light beam in step S101 by light-receiving end。Owing to placed light-permeable medium to be measured, the light intensity of the second light beam is more weak than the light intensity of the first light beam, and the value of corresponding second photoelectric current I2 is less than the value of the first photoelectric current I1。
Step S103: calculate the light transmittance of described light transmission medium to be measured according to described first photoelectric current I1 and described second photoelectric current I2。
Processor calculates the light transmittance of described light transmission medium to be measured after obtaining the first photoelectric current I1 and the second photoelectric current I2 according to the relation of I1 and I2。It addition, the first photoelectric current I1 and the second photoelectric current I2 can also be shown by ammeter, thus testing staff is facilitated to carry out artificial observation, calculating, debugging and/or verification。Generally, the relation between described first photoelectric current I1 and described second photoelectric current I2 is linear relationship, such as proportional relationship or linear function relation etc.。Alternatively, the computing formula of the light transmittance of described light transmission medium to be measured is: T=(I2/I1) × 100%。Such as: when light transmission medium A to be measured is carried out light transmittance detection, the value recording the first photoelectric current I1 according to step S101 is 10 milliamperes, the value recording the second photoelectric current I2 according to step S102 is 6 milliamperes, then T=(I2/I1) × 100%=60%, namely the light transmittance of light transmission medium A to be measured is 60%。
For same light-permeable medium to be detected, it is possible to obtain after the repetitive measurement result detected under light beam that luminous end transmitting is different is calculated, average, reduce the error of detection further。Such as: when light transmission medium B to be measured carries out light transmittance detection, the result that first time measures is: I1=10.0 milliampere, I2=7.0 milliampere, then T1=(I2/I1) × 100%=70.0%；The result that second time is measured is: I1=9.8 milliampere, I2=6.8 milliampere, then T2=(I2/I1) × 100%=69.4%；The result that third time is measured is: I1=10.1 milliampere, I2=7.2 milliampere, then T3=(I2/I1) × 100%=71.3%；Then the light transmittance of light transmission medium A to be measured is T=(T1+T2+T3)/3=70.2%。
It should be noted that step S101 and step S102 is absent from absolute precedence relationship, it is possible to first carry out step S101 and perform step S102 again；Step S102 can also be first carried out and perform step S101 again。
In sum, the first photoelectric current I1 that the present embodiment is converted by the first light beam that the light-receiving end of described divergence type photoelectric sensor after the luminous end transmitting detection light beam of acquisition divergence type photoelectric sensor receives；Wherein, the distance of described luminous end and described light-receiving end is fixed, and described light-receiving end is operated in amplification region；Obtain the second photoelectric current I2 that the second light beam that after the luminous end when light-permeable medium to be measured is placed between luminous end and light-receiving end launches described detection light beam, light-receiving end receives converts；The light transmittance of described light-permeable medium to be measured is calculated according to described first photoelectric current I1 and described second photoelectric current I2。The luminous end of divergence type photoelectric sensor and light-receiving end separately packaging, when luminous end launches detection light beam, when placing light-permeable medium to be measured between luminous end and light-receiving end and do not place light-permeable medium to be measured, the light beam that light-receiving end receives is different, the audion utilizing light-receiving end amplifies the scaling characteristic of state, and the beam intensity that receives of light-receiving end and the proportional relation of photocurrent values, when the different light beam successively received for twice, different photoelectric currents can be obtained, the light transmittance of light-permeable medium can be calculated according to the relation between photoelectric current。Thus solving the light-permeable bad test problems of medium light transmittance, and the detection of light-permeable medium light transmittance is easy, and cost is low。
Refer to Fig. 2, it is a kind of system detecting light-permeable medium light transmittance。Description not most in the embodiment of a kind of system detecting light-permeable medium light transmittance, refer to the embodiment of a kind of method detecting light-permeable medium light transmittance。As it can be seen, this system includes:
First acquiring unit 210, the first photoelectric current I1 that the first light beam that after obtaining the luminous end transmitting detection light beam of divergence type photoelectric sensor, the light-receiving end of described divergence type photoelectric sensor receives converts；Wherein, the distance of described luminous end and described light-receiving end is fixed, and described light-receiving end is operated in amplification region。
Second acquisition unit 220, obtains the second photoelectric current I2 that the second light beam that after the luminous end when light-permeable medium to be measured is placed between luminous end and light-receiving end launches described detection light beam, light-receiving end receives converts。
Computing unit 230, calculates the light transmittance of described light transmission medium to be measured according to described first photoelectric current I1 and described second photoelectric current I2。
Alternatively, described according to described first photoelectric current I1 and the described second photoelectric current I2 computing formula of light transmittance that calculates described light transmission medium to be measured be: T=(I2/I1) × 100%。
In sum, each unit module cooperative works, the first acquiring unit 210, obtains the first photoelectric current I1 that the first light beam converts；Second acquisition unit 220, obtains the second photoelectric current I2；Computing unit 230, calculates the light transmittance of described light transmission medium to be measured according to described first photoelectric current I1 and described second photoelectric current I2。When luminous end launches detection light beam, after the light beam received received the detection light beam that under placing light-permeable medium to be measured between the luminous end and light-receiving end of divergence type photoelectric sensor and not placing two kinds of situations of light-permeable medium to be measured, luminous end is launched respectively by light-receiving end after, the audion utilizing light-receiving end amplifies the beam intensity and the proportional relation of photocurrent values that under the scaling characteristic of state, light-receiving end receives, transform the light beam into photoelectric current, calculate the light transmittance of light-permeable medium to be measured according to the value of twice photoelectric current。Thus solving the problem of the light-permeable bad detection of medium light transmittance, and the detection of light-permeable medium light transmittance is easy, and cost is low。
Refer to Fig. 3 and Fig. 4, it is the structural representation of a kind of device detecting light-permeable medium light transmittance provided in the specific embodiment of the invention。The device of light-permeable medium 10 to be measured is not placed as shown in Figure 3 between the luminous end 1 and light-receiving end 6 of divergence type photoelectric sensor；The device of light-permeable medium 10 to be measured is placed as shown in Figure 4 between the luminous end 1 and light-receiving end 6 of divergence type photoelectric sensor。
This device includes: divergence type photoelectric sensor, and divergence type photoelectric sensor includes luminous end 1 and light-receiving end 6, and the luminous end 1 of described divergence type photoelectric sensor is fixed with the distance of the light-receiving end 6 of described divergence type photoelectric sensor；The light path lens 7 of luminous end 1 and the light path lens 9 of light-receiving end are directed at, and angular error controls within positive and negative 3 degree, and alternatively, 1 degree, 2 degree, 3 degree etc., angular error is the smaller the better, and the effect of detection is also more accurate；Sensor luminous end 1 and sensor light-receiving end 6 are fixed on fixed frame 3, luminous end 1 connects cable 2 by luminous end and is connected on circuit board 4, light-receiving end 6 connects cable 5 by light-receiving end and is connected on circuit board 4, described circuit board 4 is provided with power supply changeover device, external power source is converted to detection power supply by described power supply changeover device, detection power supply is luminous end and light-receiving end is powered, described circuit board 4 is fixed on described fixed frame 3, second ammeter 8 is fixed on fixed frame 3, and the second ammeter 8 is easy to monitoring personnel and is observed the photoelectric current of light-receiving end 6 in time。
When light-permeable medium 10 to be measured being carried out light transmittance detection, detect respectively in two kinds of situations when not placing light-permeable medium 10 to be measured between the luminous end 1 and light-receiving end 6 of divergence type photoelectric sensor and when placing light-permeable medium 10 to be measured between the luminous end 1 and light-receiving end 6 of divergence type photoelectric sensor。The light beam that light-receiving end receives under identical detection light beam, the light beam of reception is changed into photoelectric current by luminous end, the light transmittance according to the photoelectric current described light-permeable medium 10 to be measured of calculating that twice test obtains。Concrete, when not placing light-permeable medium 10 to be measured between the luminous end 1 and light-receiving end 6 of divergence type photoelectric sensor, luminous end 1 launches detection light beam, and light-receiving end 6 receives the first light beam, is converted into the first photoelectric current I1；When placing light-permeable medium 10 to be measured between the luminous end 1 and light-receiving end 6 of divergence type photoelectric sensor, luminous end 1 launches described detection light beam, and light-receiving end 6 receives the second light beam, is converted into the second photoelectric current I2；The light transmittance of described light-permeable medium 10 to be measured is calculated according to described I1 and described I2。Alternatively, the computing formula of the light transmittance of described light-permeable medium 10 to be measured is: T=(I2/I1) × 100%。Such as: when light transmission medium A to be measured is carried out light transmittance detection, it is 10 milliamperes that luminous end records the value of the first photoelectric current I1, the value of the second photoelectric current I2 is 6 milliamperes, then T=(I2/I1) × 100%=60%, and namely the light transmittance of light transmission medium A to be measured is 60%。
For same light-permeable medium to be detected, after carrying out repeatedly measuring and calculation, average, reduce the error of detection further。Such as: when light transmission medium B to be measured carries out light transmittance detection, the result that first time measures is: I1=10.0 milliampere, I2=7.0 milliampere, then T1=(I2/I1) × 100%=70.0%；The result that second time is measured is: I1=9.8 milliampere, I2=6.8 milliampere, then T2=(I2/I1) × 100%=69.4%；The result that third time is measured is: I1=10.1 milliampere, I2=7.2 milliampere, then T3=(I2/I1) × 100%=71.3%；Then the light transmittance of light transmission medium A to be measured is T=(T1+T2+T3)/3=70.2%。
In test process, for placing and not placing two kinds of situations that light-permeable medium 10 to be measured is placed between luminous end 1 and light-receiving end 6, except whether placing this factor changed of light-permeable medium 10 to be measured, other test environment is all identical, that is: the electric current of luminous end 1 luminescence is constant, the distance of luminous end 1 and light-receiving end 6 is constant, and the angle of the light path lens 7 of luminous end and the light path lens 9 of light-receiving end is constant, and does not have other interference。Wherein, light-receiving end 6 is operated in amplification region, then, when the light intensity of the detection light beam that luminous end 1 is launched is more strong, the first light beam that light-receiving end 6 receives is also more strong, thus the first photoelectric current I1 changed into is more big。
Further, the test beams that the light emitting diode 13 of described luminous end 1 is launched by the light path lens 7 of luminous end to emission, light-receiving end 6 passes through the light path lens 9 of light-receiving end by beam Propagation to phototriode 14, and the light beam of described reception is converted into photoelectric current by described phototriode 14。As shown in Figure 5, the positive pole of described light emitting diode 13 connects the outfan of the first ammeter 12, the minus earth of light emitting diode 13, the input of described first ammeter 12 connects one end of adjustable resistance 11, the other end of adjustable resistance 11 connects the detection power supply of circuit board 4 output, the minus earth of light emitting diode 13；The positive pole of described second ammeter 8 connects the detection power supply of circuit board 4 output, the colelctor electrode of the negative pole described phototriode 14 of connection of the second ammeter 8, the grounded emitter of phototriode 14, as shown in Figure 6。Described phototriode 14 is operated in amplification region, and the photoelectric current that the feature of amplification region work is luminous energy and the conversion accepted is directly proportional, and ratio can be approximately constant。Utilizing this characteristic, when the light intensity of the detection light beam that luminous end 1 is launched is more strong, the first light beam that light-receiving end 6 receives is also more strong, thus the first photoelectric current I1 changed into is more big。
Described phototriode 14 is NPN type phototriode, and audion collection radio pressure is more than saturation voltage, and triode operation is in amplification region。Second ammeter 8 is easy to monitoring personnel and is observed the photoelectric current of light-receiving end 6 in time。The nominal value of adjustable resistance 11 is determined by the performance detecting power supply and light emitting diode 13, testing staff can observe the electric current by flowing through light emitting diode 13 by the first ammeter 12, under normal circumstances, the electric current of light emitting diode 13 is flowed through less than 50 milliamperes, it is prevented that light emitting diode 13 burns。Adjustable resistance 11 is installed on the circuit board 4。Before test, testing staff can pass through to regulate adjustable resistance 11 and regulate the driving electric current of luminous end 1, when obtaining a suitable driving electric current, it is possible to the light intensity making light emitting diode 13 is big as far as possible；The test beams that light emitting diode 13 is launched is more bright, it is relatively more many that phototriode 14 receives light, the photoelectric current of conversion is more big, so that the impact of other interference factor reduces, improving the accuracy of detection of light transmittance, testing staff can observe the value of photoelectric current by the second ammeter 14, wherein, the magnitude of voltage of detection power supply is 3-5 volt, flows through the electric current of light emitting diode 13 less than 50 milliamperes。
In sum, the present invention adopts separation correlation photoelectric sensor, and including luminous end 1 and light-receiving end 6, the audion of light-receiving end 6 amplifies the scaling characteristic of state, and light reception intensity and photocurrent values are proportional。Sensor luminous end 1 and the first ammeter 12, adjustable resistance 11 are connected, and sensor light-receiving end 6 and the second ammeter 8 are connected, and sensor light-receiving end 6 is operated in amplification region。Utilizing the amplification region characteristic passing photoelectricity opposite type sensor, the light transmittance of detection light-permeable medium, this device is simple, measures easy and simple to handle, the problem solving the light-permeable bad detection of medium light transmittance, greatly reduces the cost of light-permeable medium light transmittance detection。
The know-why of the present invention is described above in association with specific embodiment。These descriptions are intended merely to explanation principles of the invention, and can not be construed to limiting the scope of the invention by any way。Based on explanation herein, those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes fall within protection scope of the present invention。
Claims (9)
1. the method detecting light-permeable medium light transmittance, it is characterised in that including:
The first photoelectric current I1 that the first light beam that after obtaining the luminous end transmitting detection light beam of divergence type photoelectric sensor, the light-receiving end of described divergence type photoelectric sensor receives converts；Wherein, the distance of described luminous end and described light-receiving end is fixed, and described light-receiving end is operated in amplification region；
Obtain the second photoelectric current I2 that the second light beam that after the luminous end when light-permeable medium to be measured is placed between luminous end and light-receiving end launches described detection light beam, light-receiving end receives converts；
The light transmittance of described light-permeable medium to be measured is calculated according to described first photoelectric current I1 and described second photoelectric current I2。
2. method according to claim 1, it is characterised in that described according to described first photoelectric current I1 and the described second photoelectric current I2 computing formula of light transmittance that calculates described light-permeable medium to be measured be: T=(I2/I1) × 100%。
3. the system detecting light-permeable medium light transmittance, it is characterised in that including:
First acquiring unit, the first photoelectric current I1 that the first light beam that after obtaining the luminous end transmitting detection light beam of divergence type photoelectric sensor, the light-receiving end of described divergence type photoelectric sensor receives converts；Wherein, the distance of described luminous end and described light-receiving end is fixed, and described light-receiving end is operated in amplification region；
Second acquisition unit, obtains the second photoelectric current I2 that the second light beam that after the luminous end when light-permeable medium to be measured is placed between luminous end and light-receiving end launches described detection light beam, light-receiving end receives converts；
Computing unit, calculates the light transmittance of described light-permeable medium to be measured according to described first photoelectric current I1 and described second photoelectric current I2。
4. system according to claim 3, it is characterised in that described according to described first photoelectric current I1 and the described second photoelectric current I2 computing formula of light transmittance that calculates described light-permeable medium to be measured be: T=(I2/I1) × 100%。
5. the distance of the device detecting light-permeable medium light transmittance, it is characterised in that including: divergence type photoelectric sensor, the luminous end (1) of described divergence type photoelectric sensor and the light-receiving end (6) of described divergence type photoelectric sensor is fixed；Wherein, light-receiving end (6) is operated in amplification region；
During detection, luminous end (1) launches detection light beam, and light-receiving end (6) receives the first light beam, is converted into the first photoelectric current I1；When light-permeable medium to be measured is placed between luminous end (1) and light-receiving end (6), luminous end (1) launches described detection light beam, and light-receiving end (6) receives the second light beam, is converted into the second photoelectric current I2；The light transmittance of described light-permeable medium (10) to be measured is calculated according to described first photoelectric current I1 and described second photoelectric current I2。
6. device according to claim 5, it is characterised in that also include: fixed frame (3), described luminous end (1) and light-receiving end (6) are each attached on described fixed frame (3)。
7. device according to claim 5, it is characterised in that also include: adjustable resistance (11) and the first ammeter (12)；
Described luminous end (1) includes light emitting diode (13)；
One end of described adjustable resistance (11) connects detection power supply, the other end of adjustable resistance (11) connects the positive pole of described first ammeter (12), the negative pole of the first ammeter (12) connects the positive pole of described light emitting diode (13), the minus earth of light emitting diode (13)。
8. device according to claim 5, it is characterised in that also include: the second ammeter (8)；
Described light-receiving end (6) includes phototriode (14)；Described phototriode (14) is NPN type phototriode；
The positive pole of described second ammeter (8) connects detection power supply, and the negative pole of the second ammeter (8) connects the colelctor electrode of described phototriode (14), the grounded emitter of phototriode (14)。
9. device according to claim 6, it is characterized in that, also include: circuit board (4), described circuit board is provided with power supply changeover device on (4), external power source is converted to detection power supply by described power supply changeover device, detection power supply is luminous end (1) and light-receiving end (6) power supply, and described circuit board (4) is fixed on described fixed frame (3)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610173649.2A CN105699336A (en) | 2016-03-24 | 2016-03-24 | Method, system and device for detecting luminousness of medium pervious to light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610173649.2A CN105699336A (en) | 2016-03-24 | 2016-03-24 | Method, system and device for detecting luminousness of medium pervious to light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105699336A true CN105699336A (en) | 2016-06-22 |
Family
ID=56232727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610173649.2A Pending CN105699336A (en) | 2016-03-24 | 2016-03-24 | Method, system and device for detecting luminousness of medium pervious to light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105699336A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907468A (en) * | 2017-12-04 | 2018-04-13 | 广东美的制冷设备有限公司 | Sensor calibrating method, sensor and airhandling equipment |
| CN108489713A (en) * | 2018-05-08 | 2018-09-04 | 江西师范大学 | Detection apparatus for one-way perspective mirror |
| CN108630561A (en) * | 2017-03-15 | 2018-10-09 | 北京北方华创微电子装备有限公司 | The detection device and detection method of substrate surface, pass sheet chamber room |
| CN113933268A (en) * | 2020-07-13 | 2022-01-14 | 中移物联网有限公司 | Optical detection device and optical detection method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5267384A (en) * | 1975-12-01 | 1977-06-03 | Citizen Watch Co Ltd | Reflectance and transmissivity meter |
| JPH10111245A (en) * | 1996-10-03 | 1998-04-28 | Toray Ind Inc | Detecting device of light transmission characteristic of fluid, detecting device of toner concentration, controlling method of toner concentration and image-forming device |
| US20050128485A1 (en) * | 2003-12-12 | 2005-06-16 | Singla Madan L. | Portable device for total gossypol measurement |
| CN104237128A (en) * | 2014-09-26 | 2014-12-24 | 三星高新电机（天津）有限公司 | Fixed device and measuring method for light transmittance measurement |
| CN104792741A (en) * | 2014-01-17 | 2015-07-22 | 宸鸿科技(厦门)有限公司 | Light transmittance measurement equipment |
| CN205643157U (en) * | 2016-03-24 | 2016-10-12 | 深圳怡化电脑股份有限公司 | Detect device of light -permeable medium luminousness |
-
2016
- 2016-03-24 CN CN201610173649.2A patent/CN105699336A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5267384A (en) * | 1975-12-01 | 1977-06-03 | Citizen Watch Co Ltd | Reflectance and transmissivity meter |
| JPH10111245A (en) * | 1996-10-03 | 1998-04-28 | Toray Ind Inc | Detecting device of light transmission characteristic of fluid, detecting device of toner concentration, controlling method of toner concentration and image-forming device |
| US20050128485A1 (en) * | 2003-12-12 | 2005-06-16 | Singla Madan L. | Portable device for total gossypol measurement |
| CN104792741A (en) * | 2014-01-17 | 2015-07-22 | 宸鸿科技(厦门)有限公司 | Light transmittance measurement equipment |
| CN104237128A (en) * | 2014-09-26 | 2014-12-24 | 三星高新电机（天津）有限公司 | Fixed device and measuring method for light transmittance measurement |
| CN205643157U (en) * | 2016-03-24 | 2016-10-12 | 深圳怡化电脑股份有限公司 | Detect device of light -permeable medium luminousness |
Non-Patent Citations (3)
| Title |
|---|
| 张锐 等: "《玻璃工艺学》", 31 July 2008 * |
| 王兆宇 等: "《西门子PLC电气设计与编程自学宝典》", 31 March 2015 * |
| 王晓红 等: "《传感器应用技术》", 30 September 2014 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630561A (en) * | 2017-03-15 | 2018-10-09 | 北京北方华创微电子装备有限公司 | The detection device and detection method of substrate surface, pass sheet chamber room |
| CN108630561B (en) * | 2017-03-15 | 2021-10-15 | 北京北方华创微电子装备有限公司 | Substrate surface detection device and detection method and wafer transfer chamber |
| CN107907468A (en) * | 2017-12-04 | 2018-04-13 | 广东美的制冷设备有限公司 | Sensor calibrating method, sensor and airhandling equipment |
| CN107907468B (en) * | 2017-12-04 | 2020-11-06 | 广东美的制冷设备有限公司 | Sensor calibration method, sensor and air treatment equipment |
| CN108489713A (en) * | 2018-05-08 | 2018-09-04 | 江西师范大学 | Detection apparatus for one-way perspective mirror |
| CN113933268A (en) * | 2020-07-13 | 2022-01-14 | 中移物联网有限公司 | Optical detection device and optical detection method |
| CN113933268B (en) * | 2020-07-13 | 2024-03-19 | 中移物联网有限公司 | Optical detection device and optical detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105699336A (en) | Method, system and device for detecting luminousness of medium pervious to light | |
| CN105911499B (en) | Ultrasonic wave shelf depreciation metering system and method under site environment | |
| CN101354332A (en) | Laser powder dust detector with humidity continuous self-correcting function and detecting method thereof | |
| CN103424768A (en) | Gain stabilizing apparatus for detector system and controlling method thereof | |
| CN108776277B (en) | Laser detection device and method | |
| CN202471578U (en) | Indoor air detecting device | |
| CN108801957B (en) | Biochemical substance detection instrument based on optical method and calibration method thereof | |
| CN102914515A (en) | Method for extracting low-concentration signals of laser gas analyzer | |
| CN107091808A (en) | A kind of anti-interference of stray light photodetector system based on digital servo-control | |
| CN103487238A (en) | Light source stroboscopic testing device | |
| CN204758243U (en) | Gaseous dew point of SF6 leaks tester | |
| CN102053009B (en) | Method for measuring response time of photoelectric measurement instrument | |
| CN108931304A (en) | A kind of pulsed light power measuring system and method | |
| CN205643157U (en) | Detect device of light -permeable medium luminousness | |
| CN104122231B (en) | On-line self-calibration water quality turbidity detection system | |
| CN205594118U (en) | Transmission line ground connection flashover fault positioning system | |
| CN102156214A (en) | Double-light-path leakage current optical fiber sensor device | |
| CN103091568B (en) | A kind of avalanche photodiode excessive noise factor measuring system | |
| CN201438135U (en) | Light-power waveform detection device | |
| CN103528959A (en) | Gas concentration measurement method and device | |
| CN205262553U (en) | Liquid ultrasonic flowmeter's detecting system | |
| CN105911394A (en) | PIN-PET optical receiving assembly automatic test system | |
| CN101770030A (en) | Distance measuring device and control method thereof | |
| CN1995977A (en) | Light path self-compensation method for fiber-optic gas sensor and device therefor | |
| CN103438992B (en) | A kind of illuminometer with automatic positioning function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160622 |
|
| RJ01 | Rejection of invention patent application after publication |