CN106251750A - A kind of open Photoelectric effect experimental apparatus and operational approach thereof - Google Patents
A kind of open Photoelectric effect experimental apparatus and operational approach thereof Download PDFInfo
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- CN106251750A CN106251750A CN201610873877.0A CN201610873877A CN106251750A CN 106251750 A CN106251750 A CN 106251750A CN 201610873877 A CN201610873877 A CN 201610873877A CN 106251750 A CN106251750 A CN 106251750A
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Abstract
The invention discloses a kind of open Photoelectric effect experimental apparatus and operational approach thereof, including LED light source, the optical filter of polylith different colours, aperture, convex lens, concavees lens, sample stage and photocell, LED light source is arranged on seal casinghousing left side wall, housing central section is provided with light barrier, light barrier is provided with just loophole to LED light source, after polylith optical filter is arranged on rotating disk and ensures rotating disk rotation, every piece of optical filter can align loophole, rotating disk is rotatably installed on the right side of light barrier, aperture, convex lens and concavees lens are arranged on sleeve the most from left to right and guarantee center is just to loophole, sleeve right-hand member is connected on sample chamber lateral wall, sample stage is installed in sample chamber, photocell is installed on the right side of sample stage.Light energy spatial difference in distribution of the present invention is less, and linear relationship is good, and experiment effect is good, and it is nontoxic to compare mercury lamp, and its voltage is low, energy-conservation, and caloric value is little, reduces heat radiation, and test impact is little.
Description
Technical field
The invention belongs to photoelectric effect assay device technical field, relate to a kind of open Photoelectric effect experimental apparatus and behaviour thereof
Make method.
Background technology
Photoelectric effect experiment needs to measure planck constant and photocell C-V characteristic, checking photoelectric current and the pass of light intensity
System.Traditional Photoelectric effect experimental apparatus is only with surveying planck constant.Traditional Photoelectric effect experimental apparatus measure saturation current with
During the Relationship of Light intensity, owing to common mercury lamp light source light-emitting area is little, light energy spatial difference in distribution is relatively big, utilizes diaphragm to regulate light intensity
During, light intensity is very poor with aperture of the diaphragm area linear relation, and experiment effect is poor.Mercury metal is poisonous, and mercury lamp running voltage is high, consumption
Electricity is big, and caloric value is big.
Traditional Photoelectric effect experimental apparatus can be only done simple replication experiment, is difficult to carry out expansion experiments content, training
Support creative ability for students.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of open Photoelectric effect experimental apparatus and operational approach, energy
Enough increase light source luminescent face, improve equalization of intensity, change light intensity and increase stability of instrument, solid and liquid can be carried out
Photoabsorption experiment, the absorption coefficient of light of quantitative measurement sample, light intensity and aperture of the diaphragm area linear are on speaking terms, and experiment effect is good,
To overcome problems of the prior art.
The technical scheme that the present invention takes is: a kind of open Photoelectric effect experimental apparatus, including LED light source, polylith difference
The optical filter of color, aperture, convex lens, concavees lens, sample stage and photocell, LED light source is arranged on seal casinghousing left side wall,
Housing central section is provided with light barrier, and light barrier is provided with just loophole to LED light source, polylith optical filter be arranged on rotating disk and
After ensureing rotating disk rotation, every piece of optical filter can align loophole, and rotating disk is rotatably installed on the right side of light barrier, aperture, convex lens
Mirror and concavees lens are arranged in sleeve the most from left to right and guarantee center is just to loophole, and sleeve right-hand member is connected to sample chamber
On left outside sidewall, being provided with sample rotary table in sample chamber, it is removable for having active catch mating plate, sample chamber right side wall on the right side of sample rotary table
Unloading structure and be provided with photocell, photocell is concentric with loophole.
Preferably, above-mentioned rotating disk stretches out housing upper side wall, and is provided with rib on the rotating disk face of cylinder, and its side is arranged
Having the Warning Mark representing monochromatic light size, housing upper side wall is provided with pointer, and rotating disk rotates backpointer can be just to Warning Mark
Center.
Preferably, above-mentioned circular sample turntable upper surface circumference is uniformly distributed 6 square holes, rotatable by rotating shaft bottom it
Ground is installed on the supporting plate, and 6 square holes are distributed on a semicircle, and rotating shaft lower end is provided with knob, and knob is provided with scale,
Tuning drive gear is arranged on the supporting plate.
Preferably, above-mentioned square hole sidewall is provided with two pieces of symmetrical spring leafs.
Preferably, said aperture is provided with the hand push button of regulation light hole size, and hand push button reaches outside housing sidewall.
A kind of operational approach of open Photoelectric effect experimental apparatus, the method comprises the following steps:
(1) by tester and LED mercury lamp power on, preheat 5-8 minute；
(2) aperture being adjusted to closed mode, sample cell windows is dummy status, and rotating sample pool sample rotary table makes sample
Pond window is in light path, and light passes freely through；
(3) with Special-purpose connecting line, photocell camera bellows voltage input end is connected with tester voltage output end；
(4) instrument is after being fully warmed-up, and carries out testing front zeroing；The most first electric appliance box is disconnected with photocell, without photoelectricity
In the case of tube current input, testing current micro-to tester returns to zero and calibrates；
(5) with high frequency coupling cable, photocell camera bellows current output terminal K current input terminal micro-with tester is connected；
(6) carry out photocell characteristic and Planck's constant is measured and test sample product are to monochromatic absorptance.
Preferably, above-mentioned when carrying out photocell feature measurement, photocell feature measurement comprises the following steps:
(1) fixed aperture value, makes light beam be irradiated to phototube cathode completely, and rotating filtering sheet rotating disk selects optical wavelength；
(2) regulating anode voltage from low to high, recording voltage value and corresponding current value, when electric current generation significant change arrives
It is 0.02V to voltage step size time saturated；
(3) voltage-to-current mapping is obtained photocell C-V characteristic under this wavelength condition；
When carrying out Planck's constant measurement, Planck's constant measurement comprises the following steps:
(A) change successively wavelength be 0, the optical filter of 405nm, 436nm, 477nm, 546nm, 578.0nm, repeat photocell
The step (1) (2) (3) of feature measurement, records the blanking voltage that each wavelength is corresponding successively；
(B) to the mapping of wavelength-blanking voltage, obtain slope and be multiplied by electron charge and be Planck's constant.
Preferably, the above-mentioned sample that carries out is when measuring monochromatic absorptance, and fluid sample absorbs system to monochromatic
Number measurement comprises the following steps:
(1) rotating filtering sheet rotating disk obtains the monochromatic light setting wavelength, and regulation aperture makes beam diameter be less than
Sample cell width；
(2) regulation voltage makes photocell be in C-V characteristic linearity range near saturation position, holding voltage value constant；
(3) insert active catch mating plate, open sample chamber top cover, in sample rotary table is numbered the square hole of 1, puts neat solvent sample
Product pond, the square hole being numbered 2-6 puts test variable concentrations solution example pond；
(4) rotary knob, makes the sample cell of neat solvent be in light path, surveys now photoelectric current I0；
(5) continuing rotary knob makes test solution sample be in light path, measures photoelectric current I now；
(6) change variable concentrations solution example, make the graph of a relation picture of size of current and concentration, then can obtain absorptanceI in formula0For the photoelectric current of neat solvent, I is the photoelectric current of test solution, and L is thickness of sample, and c is liquid
Concentration.
Preferably, the above-mentioned sample that carries out is when measuring monochromatic absorptance, and solid sample absorbs system to monochromatic
Number measurement comprises the following steps:
(1) prepare solid sample, solid sample to be measured is made cuboid, and makes smooth surface；
(2) rotating filtering sheet rotating disk obtains the monochromatic light setting wavelength, and regulation aperture makes beam diameter the least
In Sample Width；
(3) regulation voltage makes photocell be in C-V characteristic linearity range near saturation position, holding voltage value constant；
(4) insert active catch mating plate, open sample chamber top cover, the square hole being numbered 1-6 in sample rotary table same
On circumference, interval is evenly arranged the position being numbered 7-12, and solid sample pad is placed in the position of 7-12, then by consolidating of making
Body sample is placed on pad；
(5) turning knob, makes No. 6 positions be in light path, measures now photoelectric current I0；
(6) rotary knob makes the solid sample of 7-12 position be in light path respectively, measures diverse location solid-like respectively
The photoelectric current I of product；
(7) measure solid thickness with slide gauge, then can obtain absorptanceI in formula0For neat solvent
Photoelectric current, I is the photoelectric current of test model, and L is thickness of sample.
Beneficial effects of the present invention: compared with prior art, the effect of the present invention is as follows:
(1) present invention is by being irradiated to optical filter after LED light source luminescence, the light that optical filter filters by aperture, convex lens,
It is irradiated to after concavees lens on photocell, it is achieved photoelectric planck constant measures and photovoltaic property, LED light source light-emitting area
Greatly, light energy spatial difference in distribution is less, during utilizing diaphragm regulation light intensity, and light intensity and aperture of the diaphragm area linear relation
Good, experiment effect is good, and it is nontoxic to compare mercury lamp, and its voltage is low, and power consumption is big, and energy-conservation, caloric value is little, reduces heat radiation, test
Impact is looked down upon, and is adjusted light intensity with aperture, re-uses convex lens and light beam is adjusted by concavees lens, form thin light
Bundle, the light distribution making light beam is uniform, tests more accurate；
(2) adding sample mounting table in the present invention, light is irradiated on sample by after concavees lens, it is achieved the light of sample
Absorbing test, add the functional of tester, it is accurately reliable that light absorbs test data, the most only need to place sample to sealing examination
On sample mounting table, test efficiency is high；
(3) present invention is by arranging the optical filter of different wave length on turntable, thus realizes the filtration of different wave length, and not
The experimental test of co-wavelength, testing efficiency is high, and it is the most special that the present invention also has simple in construction, low cost, working service
Point；
(4) present invention has Traditional photovoltaic effect experiment instrument and spectrophotometer function simultaneously, can measure Planck normal
Number, it is also possible to the absorption coefficient of light of test specimens, it is possible to realize proving test, additionally it is possible to carry out expansion test, it is easy to cultivate
The innovation ability of student.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the sample rotary table structural representation of the present invention.
In figure, 1-LED light source, 2-optical filter, 3-aperture, 4-convex lens, 5-concavees lens, 6-sample rotary table, 7-photocell,
8-housing, 9-light barrier, 10-loophole, 11-rotating disk, 12-sleeve, 13-sample chamber, 14-gripper shoe, 15-knob, 16-side
Hole, 17-hand push button, 18-removable top cover, 19-fixes axle, 20-rotating shaft, 21-activity frequency modulated light sheet, 22-sealing ring.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the present invention is described further by specific embodiment.
Embodiment 1: as Figure 1-Figure 2, a kind of open Photoelectric effect experimental apparatus, including LED light source 1, polylith difference
The optical filter 2 of color, aperture 3, convex lens 4, concavees lens 5, sample stage 6 and photocell 7, LED light source 1 is arranged on seal casinghousing 8
On left side wall, being provided with light barrier 9 in the middle part of housing 8, light barrier 9 is provided with just loophole 10 to LED light source 1, and polylith filters
After sheet 2 is arranged on rotating disk 11 and ensures rotating disk 11 rotation, every piece of optical filter 2 can align loophole 10, and rotating disk 11 is rotatably
It is arranged on the right side of light barrier 9, in aperture 3, convex lens 4 and concavees lens 5 are arranged on sleeve 12 the most from left to right and in guarantee
The heart is just to loophole 10, and sleeve 12 right-hand member is connected on the left outside sidewall of sample chamber 13, and its left end arranges resilient sealing ring 22,
Ensure that sealing effectiveness, it is to avoid printing opacity, sample rotary table 6 is installed in sample chamber 13, on the right side of sample rotary table 6, has active catch mating plate
21, its top is provided with removable top cover 18, and sample chamber 13 right side wall is demountable structure and is provided with photocell 7, photocell 7 with
With one heart, optical filter employing 0, the polylith optical filter of 405nm, 436nm, 477nm, 546nm and 578nm are arranged on rotating disk to loophole 10
On, photocell 7 signal of telecommunication is accessed tester by 75 Ω cables, and photocell power supply is powered by the micro current amplifier of tester,
Power line uses one end band to connect sheet metal, and the other end is cable plug.
Preferably, above-mentioned rotating disk 11 stretches out housing 8 upper side wall, and is provided with rib, and its side on rotating disk 11 face of cylinder
Face is provided with the Warning Mark representing monochromatic light size, and housing 8 upper side wall is provided with pointer, and rotating disk 11 rotates backpointer can be the most right
Warning Mark center, can determine which kind of monochromatic optical filter of employing, operation side by the Warning Mark arranged and pointer
Just quick, indicate eye-catching.
Preferably, above-mentioned sample rotary table 6 upper surface circumference is uniformly distributed 6 square holes 16, can be revolved by rotating shaft 13 bottom it
Turning ground to be arranged in gripper shoe 14,6 square holes are distributed on a semicircle, another semicircle is distributed and is provided with solid sample and puts
Putting tag line, rotating shaft 13 lower end is provided with knob 15, knob 15 is provided with scale, and tuning drive gear is arranged in gripper shoe 14,
The once mounting that can be realized multiple sample by the gripper shoe rotated once is tested, and is greatly improved testing efficiency and measuring accuracy,
Scale is used to be convenient for the data identification tested while various sample.
Preferably, above-mentioned square hole 16 sidewall is provided with two pieces of symmetrical spring leafs, can be by sample cell by spring leaf
Fixing and self-align.
Preferably, said aperture 3 is provided with the hand push button 17 of regulation light hole size, and hand push button 17 reaches housing 8
Outside sidewall, aperture light intensity is adjusted by rotation manual button 17.
Preferably, arranging active catch mating plate 21 between sample rotary table 6 and photocell 7, this light barrier 21 is by top slit
Insert, and manually controllable.
In the present invention, LED light source 1, by using low voltage white light LED bulb, is weldingly fixed on one piece of little circuit board, electricity
Road plate is screwed on a nugget genus iron plate, and iron plate thickness is identical with shell, and corner and shell relevant position are drilled with four
Screw, is used for installing light source.
In the present invention, rotating disk 11 is made up of metallic iron, central small hole, is arranged in rotating shaft, and dish is uniformly distributed 6 circles
Hole, circular hole installs optical filter.
In the present invention, the light adjusting system being made up of manual iris, convex lens, concavees lens is contained in sleeve, manual iris,
Relatively independent part made by convex lens, concavees lens, and sleeve right-hand member uses screw thread sidewall left outside with sample chamber to be connected, and left end is by setting
The sealing ring putting elasticity keeps sealing with rotating disk.
In the present invention, sample rotary table vinyon is made, and there is screw at its center, and available screw is solid by sample rotary table
Being scheduled in the rotating shaft of bottom, a sample cell square hole both sides resilient foil respectively, elastic sheet metal can use seccotine
Water adhesion, sample rotary table both can have been placed fluid sample, can have been placed again solid sample.
In the present invention, the knob of sample rotary table is fixed on the lower end of rotating shaft, uses threaded, and rounded, side sets
Putting 12 long graduation marks to be divided equally on the face of cylinder, carve 5 short-terms between two long lines, making running accuracy is 3.0 degree, carves numeral under long line,
Identical samples pond sequence number, No. 1-6 corresponding liquid sample pool, 7-12 correspondence solid sample, the digital number on knob turns with sample
Platform sequence number differs 90 degree with axial connecting line.
Embodiment 2: the operational approach of a kind of open Photoelectric effect experimental apparatus, the method comprises the following steps:
(1) by tester and LED mercury lamp power on, preheat 5-8 minute；
(2) aperture being adjusted to closed mode, sample cell windows is dummy status, and rotating sample pool sample rotary table makes sample
Pond window is in light path, and light passes freely through；
(3) with Special-purpose connecting line, photocell camera bellows voltage input end is connected with tester voltage output end；
(4) instrument is after being fully warmed-up, and carries out testing front zeroing；The most first electric appliance box is disconnected with photocell, without photoelectricity
In the case of tube current input, testing current micro-to tester returns to zero and calibrates；
(5) with high frequency coupling cable, photocell camera bellows current output terminal K current input terminal micro-with tester is connected；
(6) carry out photocell characteristic and Planck's constant is measured and test sample product are to monochromatic absorptance.
Preferably, above-mentioned when carrying out photocell feature measurement, photocell feature measurement comprises the following steps:
(1) fixed aperture value, makes light beam be irradiated to phototube cathode completely, and rotating filtering sheet rotating disk selects optical wavelength；
(2) regulating anode voltage from low to high, recording voltage value and corresponding current value, when electric current generation significant change arrives
It is 0.02V to voltage step size time saturated；
(3) voltage-to-current mapping is obtained photocell C-V characteristic under this wavelength condition；
When carrying out Planck's constant measurement, Planck's constant measurement comprises the following steps:
(A) change successively wavelength be 0, the optical filter of 405nm, 436nm, 477nm, 546nm, 578.0nm, repeat photocell
The step (1) (2) (3) of feature measurement, records the blanking voltage that each wavelength is corresponding successively；
(B) to the mapping of wavelength-blanking voltage, obtain slope and be multiplied by electron charge and be Planck's constant.
Preferably, the above-mentioned sample that carries out is when measuring monochromatic absorptance, and fluid sample absorbs system to monochromatic
Number measurement comprises the following steps:
(1) rotating filtering sheet rotating disk obtains the monochromatic light setting wavelength, and regulation aperture makes beam diameter be less than
Sample cell width；
(2) regulation voltage makes photocell be in C-V characteristic linearity range near saturation position, holding voltage value constant；
(3) insert active catch mating plate, open sample chamber top cover, in sample rotary table is numbered the square hole of 1, puts neat solvent sample
Product pond, the square hole being numbered 2-6 puts test variable concentrations solution example pond；
(4) rotary knob, makes the sample cell of neat solvent be in light path, surveys now photoelectric current I0；
(5) continuing rotary knob makes test solution sample be in light path, measures photoelectric current I now；
(6) change variable concentrations solution example, make the graph of a relation picture of size of current and concentration, then can obtain absorptanceI in formula0For the photoelectric current of neat solvent, I is the photoelectric current of test solution, and L is thickness of sample, and c is liquid
Concentration.
Preferably, the above-mentioned sample that carries out is when measuring monochromatic absorptance, and solid sample absorbs system to monochromatic
Number measurement comprises the following steps:
(1) prepare solid sample, solid sample to be measured is made cuboid, and makes smooth surface；
(2) rotating filtering sheet rotating disk obtains the monochromatic light setting wavelength, and regulation aperture makes beam diameter be less than
Sample cell width；
(3) regulation voltage makes photocell be in C-V characteristic linearity range near saturation position, holding voltage value constant；
(4) insert active catch mating plate, open sample chamber top cover, the square hole being numbered 1-6 in sample rotary table same
On circumference, interval is evenly arranged the position being numbered 7-12, and solid sample pad is placed in the position of 7-12, then by consolidating of making
Body sample is placed on pad；
(5) turning knob, makes No. 6 positions be in light path, measures now photoelectric current I0；
(6) rotary knob makes the solid sample of 7-12 position be in light path respectively, measures diverse location solid-like respectively
The photoelectric current I of product；
(7) measure solid thickness with slide gauge, then can obtain absorptanceI in formula0For neat solvent
Photoelectric current, I is the photoelectric current of test model, and L is thickness of sample.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Covering within protection scope of the present invention, therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (9)
1. an open Photoelectric effect experimental apparatus, it is characterised in that: include LED light source (1), the optical filter of polylith different colours
(2), aperture (3), convex lens (4), concavees lens (5), sample stage (6) and photocell (7), LED light source (1) is arranged on seal casinghousing
(8), on left side wall, housing (8) middle part is provided with light barrier (9), and light barrier (9) is provided with just loophole to LED light source (1)
(10) after, polylith optical filter (2) is arranged on rotating disk (11) and ensures rotating disk (11) rotation, every piece of optical filter (2) can align
Unthreaded hole (10), rotating disk (11) is rotatably installed in light barrier (9) right side, and aperture (3), convex lens (4) and concavees lens (5) are successively
In being arranged on sleeve (12) from left to right and guarantee center is just to loophole (10), and sleeve (12) right-hand member is connected to sample chamber
(13) on left outside sidewall, being provided with sample rotary table (6) in sample chamber (13), there is active catch mating plate (21) on sample rotary table (6) right side,
Sample chamber (13) right side wall is demountable structure and is provided with photocell (7), and photocell (7) is concentric with loophole (10).
The open Photoelectric effect experimental apparatus of one the most according to claim 1, it is characterised in that: rotating disk (11) stretches out housing
(8) upper side wall, and on rotating disk (11) face of cylinder, it is provided with rib, and its side is provided with the indicateing arm representing monochromatic light size
Will, housing (8) upper side wall is provided with pointer, and rotating disk (11) rotates backpointer can be just to Warning Mark center.
The open Photoelectric effect experimental apparatus of one the most according to claim 1, it is characterised in that: circular sample turntable (6)
Upper surface circumference is uniformly distributed 6 square holes (16), is rotatably installed in gripper shoe (14) by rotating shaft (13), 6 bottom it
Individual square hole is distributed on a semicircle, and rotating shaft (13) lower end is provided with knob (15), and knob is provided with scale on (15), and scale refers to
Pin is arranged in gripper shoe (14).
The open Photoelectric effect experimental apparatus of one the most according to claim 3, it is characterised in that: set on square hole (16) sidewall
It is equipped with two pieces of symmetrical spring leafs.
The open Photoelectric effect experimental apparatus of one the most according to claim 1, it is characterised in that: aperture (3) is provided with tune
The hand push button (17) of joint light hole size, hand push button (17) reaches outside housing (8) sidewall.
The operational approach of a kind of open Photoelectric effect experimental apparatus the most according to claim 1, it is characterised in that: the method
Comprise the following steps:
(1) by tester and LED mercury lamp power on, preheat 5-8 minute；
(2) aperture being adjusted to closed mode, sample cell windows is dummy status, and rotating sample pool sample rotary table makes sample cell window
Mouth is in light path, and light passes freely through；
(3) with Special-purpose connecting line, photocell camera bellows voltage input end is connected with tester voltage output end；
(4) instrument is after being fully warmed-up, and carries out testing front zeroing；The most first electric appliance box is disconnected with photocell, without photocell electricity
In the case of stream input, testing current micro-to tester returns to zero and calibrates；
(5) with high frequency coupling cable, photocell camera bellows current output terminal K current input terminal micro-with tester is connected；
(6) carry out photocell characteristic and Planck's constant is measured and test sample product are to monochromatic absorptance.
The operational approach of a kind of open Photoelectric effect experimental apparatus the most according to claim 6, it is characterised in that: carry out light
During fulgurite feature measurement, photocell feature measurement comprises the following steps:
(1) fixed aperture value, makes light beam be irradiated to phototube cathode completely, and rotating filtering sheet rotating disk selects optical wavelength；
(2) regulating anode voltage from low to high, recording voltage value and corresponding current value, when electric current generation significant change reaches full
With time voltage step size be 0.02V；
(3) voltage-to-current mapping is obtained photocell C-V characteristic under this wavelength condition；
When carrying out Planck's constant measurement, Planck's constant measurement comprises the following steps:
(A) change successively wavelength be 0, the optical filter of 405nm, 436nm, 477nm, 546nm, 578.0nm, repeat photocell characteristic
The step (1) (2) (3) measured, records the blanking voltage that each wavelength is corresponding successively；
(B) to the mapping of wavelength-blanking voltage, obtain slope and be multiplied by electron charge and be Planck's constant.
The operational approach of a kind of open Photoelectric effect experimental apparatus the most according to claim 6, it is characterised in that: carry out sample
When monochromatic absorptance is measured by product, monochromatic absorptance measurement is comprised the following steps by fluid sample:
(1) rotating filtering sheet rotating disk obtains the monochromatic light setting wavelength, and regulation aperture makes beam diameter be approximately less than sample cell width；
(2) regulation voltage makes photocell be in C-V characteristic linearity range near saturation position, holding voltage value constant；
(3) insert active catch mating plate, open sample chamber top cover, in sample rotary table is numbered the square hole of 1, puts neat solvent sample cell,
The square hole being numbered 2-6 puts test variable concentrations solution example pond；
(4) rotary knob, makes the sample cell of neat solvent be in light path, surveys now photoelectric current I0；
(5) continuing rotary knob makes test solution sample be in light path, measures photoelectric current I now；
(6) change variable concentrations solution example, make the graph of a relation picture of size of current and concentration, then can obtain absorptanceI in formula0For the photoelectric current of neat solvent, I is the photoelectric current of test solution, and L is thickness of sample, and c is liquid
Concentration.
The operational approach of a kind of open Photoelectric effect experimental apparatus the most according to claim 6, it is characterised in that: carry out sample
When monochromatic absorptance is measured by product, monochromatic absorptance measurement is comprised the following steps by solid sample:
(1) prepare solid sample, solid sample to be measured is made cuboid, and makes smooth surface；
(2) rotating filtering sheet rotating disk obtains the monochromatic light setting wavelength, and regulation aperture makes beam diameter be approximately less than Sample Width；
(3) regulation voltage makes photocell be in C-V characteristic linearity range near saturation position, holding voltage value constant；
(4) insert active catch mating plate, open sample chamber top cover, the same circumference of the square hole being numbered 1-6 in sample rotary table
On line, interval is evenly arranged the position being numbered 7-12, and solid sample pad, then the solid-like that will make are placed in the position of 7-12
Product are placed on pad；
(5) turning knob, makes No. 6 positions be in light path, measures now photoelectric current I0；
(6) rotary knob makes the solid sample of 7-12 position be in light path respectively, measures diverse location solid sample respectively
Photoelectric current I；
(7) measure solid thickness with slide gauge, then can obtain absorptanceI in formula0Photoelectricity for neat solvent
Electric current, I is the photoelectric current of test model, and L is thickness of sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610873877.0A CN106251750A (en) | 2016-10-08 | 2016-10-08 | A kind of open Photoelectric effect experimental apparatus and operational approach thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610873877.0A CN106251750A (en) | 2016-10-08 | 2016-10-08 | A kind of open Photoelectric effect experimental apparatus and operational approach thereof |
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| CN106251750A true CN106251750A (en) | 2016-12-21 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827886A (en) * | 2018-03-16 | 2018-11-16 | 上海帆声图像科技有限公司 | A kind of imaging device |
| CN108982494A (en) * | 2018-09-21 | 2018-12-11 | 太原理工大学 | A kind of chromogenic reaction quantitative testing device and method based on smart machine |
| CN109765291A (en) * | 2019-03-08 | 2019-05-17 | 陕西科技大学 | Paper total ash and component rapid measurement device and measurement method based on filter method |
| CN110767055A (en) * | 2019-11-01 | 2020-02-07 | 四川大学 | Method for measuring photoelectric effect cut-off voltage |
| CN111862752A (en) * | 2020-07-29 | 2020-10-30 | 马鞍山学院 | Tester for photoelectric effect experiment and test method thereof |
| CN112652215A (en) * | 2020-12-14 | 2021-04-13 | 河北省地质实验测试中心 | Experimental science popularization demonstration device by spectrophotometry |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6040955A (en) * | 1983-08-17 | 1985-03-04 | Japan Spectroscopic Co | Automatic micro-plate spectroscopic analysis apparatus and its method |
| CN1221876A (en) * | 1997-10-29 | 1999-07-07 | 仓敷纺绩株式会社 | Optical density determination device |
| CN2490665Y (en) * | 2001-04-26 | 2002-05-08 | 文景 | Photoelectric effect experimental instrument |
| CN101398453A (en) * | 2007-09-26 | 2009-04-01 | 中国科学院半导体研究所 | Single light path quantum efficiency test system |
| CN102162791A (en) * | 2010-12-09 | 2011-08-24 | 霍尼韦尔综合科技(中国)有限公司 | Real-time on-line adsorption detection system |
| CN202178005U (en) * | 2011-07-22 | 2012-03-28 | 杭州博光科技有限公司 | Photoelectric effect test device |
| CN105628656A (en) * | 2015-12-31 | 2016-06-01 | 哈尔滨工业大学 | Device for measuring liquid absorption coefficient under condition of external electric field |
| CN105842178A (en) * | 2016-04-20 | 2016-08-10 | 华侨大学 | Non-intrusive mode online detection device for pH value of cell culture fluid and detection method |
| CN105866029A (en) * | 2015-02-09 | 2016-08-17 | 株式会社岛津制作所 | Optical analyzer |
| CN206194235U (en) * | 2016-10-08 | 2017-05-24 | 铜仁学院 | Open photoelectric effect tests appearance |
-
2016
- 2016-10-08 CN CN201610873877.0A patent/CN106251750A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6040955A (en) * | 1983-08-17 | 1985-03-04 | Japan Spectroscopic Co | Automatic micro-plate spectroscopic analysis apparatus and its method |
| CN1221876A (en) * | 1997-10-29 | 1999-07-07 | 仓敷纺绩株式会社 | Optical density determination device |
| CN2490665Y (en) * | 2001-04-26 | 2002-05-08 | 文景 | Photoelectric effect experimental instrument |
| CN101398453A (en) * | 2007-09-26 | 2009-04-01 | 中国科学院半导体研究所 | Single light path quantum efficiency test system |
| CN102162791A (en) * | 2010-12-09 | 2011-08-24 | 霍尼韦尔综合科技(中国)有限公司 | Real-time on-line adsorption detection system |
| CN202178005U (en) * | 2011-07-22 | 2012-03-28 | 杭州博光科技有限公司 | Photoelectric effect test device |
| CN105866029A (en) * | 2015-02-09 | 2016-08-17 | 株式会社岛津制作所 | Optical analyzer |
| CN105628656A (en) * | 2015-12-31 | 2016-06-01 | 哈尔滨工业大学 | Device for measuring liquid absorption coefficient under condition of external electric field |
| CN105842178A (en) * | 2016-04-20 | 2016-08-10 | 华侨大学 | Non-intrusive mode online detection device for pH value of cell culture fluid and detection method |
| CN206194235U (en) * | 2016-10-08 | 2017-05-24 | 铜仁学院 | Open photoelectric effect tests appearance |
Non-Patent Citations (1)
| Title |
|---|
| 吕玉光: "《仪器分析》", 31 January 2016, 中国医药科技出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827886A (en) * | 2018-03-16 | 2018-11-16 | 上海帆声图像科技有限公司 | A kind of imaging device |
| CN108982494A (en) * | 2018-09-21 | 2018-12-11 | 太原理工大学 | A kind of chromogenic reaction quantitative testing device and method based on smart machine |
| CN109765291A (en) * | 2019-03-08 | 2019-05-17 | 陕西科技大学 | Paper total ash and component rapid measurement device and measurement method based on filter method |
| CN110767055A (en) * | 2019-11-01 | 2020-02-07 | 四川大学 | Method for measuring photoelectric effect cut-off voltage |
| CN111862752A (en) * | 2020-07-29 | 2020-10-30 | 马鞍山学院 | Tester for photoelectric effect experiment and test method thereof |
| CN112652215A (en) * | 2020-12-14 | 2021-04-13 | 河北省地质实验测试中心 | Experimental science popularization demonstration device by spectrophotometry |
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