CN202331000U - High-precision exposure automatic controller - Google Patents
High-precision exposure automatic controller Download PDFInfo
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- CN202331000U CN202331000U CN201120460043XU CN201120460043U CN202331000U CN 202331000 U CN202331000 U CN 202331000U CN 201120460043X U CN201120460043X U CN 201120460043XU CN 201120460043 U CN201120460043 U CN 201120460043U CN 202331000 U CN202331000 U CN 202331000U
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- operational amplifier
- resistance
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- slide rheostat
- circuit
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Abstract
The utility model discloses a high-precision exposure automatic controller, comprising a relay, a silicon photocell, an integration circuit, a reference voltage, a voltage comparing circuit and an inverting circuit, wherein the signal output end of the silicon photocell is connected with the input end of the integration circuit; the output end of the integration circuit and the output end of the reference voltage are connected with the input end of the voltage comparing circuit; the output end of the voltage comparing circuit is connected with the input end of the inverting circuit; and the output end of the inverting circuit is connected with the input end of the relay. According to the high-precision exposure automatic controller disclosed by the utility model, exposure amount can be automatically controlled by using the integration circuit consisting of operational amplifiers. The high-precision exposure automatic controller has the advantages of simple circuit and higher precision.
Description
Technical field
The utility model relates to a kind of exposure control unit, more relates to a kind of high precision exposure self-actuated controller that digital expansion is amplified that can be used for.
Background technology
When amplifying photograph, the thickness of a collection of photograph possibly differ greatly, and will make sample one by one usually, controls exposure according to test findings with manual time-keeping or with the time relay then, and it is low therefore to do photograph amplification efficient, and precision is not high.
Summary of the invention
The purpose of the utility model with regard to be to provide in order to address the above problem a kind of circuit simple, can control exposure, exposure self-actuated controller that precision is high automatically.
The utility model is realized above-mentioned purpose through following technical scheme:
The utility model comprises relay, silicon photocell, integrating circuit, reference voltage, voltage comparator circuit and negative circuit; The signal output part of said silicon photocell is connected with the input end of said integrating circuit; The output terminal of said integrating circuit all is connected with the input end of said voltage comparator circuit with said reference voltage output end; The output terminal of said voltage comparator circuit is connected with the input end of said negater circuit, and the output terminal of said negater circuit is connected with the input end of said relay.
The said integrating circuit of the utility model comprises first operational amplifier, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, first electric capacity, second electric capacity, first slide rheostat, second slide rheostat and switch; The two ends of said first resistance are connected with the signal output part of said light emitting diode and the sliding end of said first slide rheostat respectively; The other end of said first slide rheostat is connected with No. two pins of said first operational amplifier; The two ends of said second slide rheostat are connected with pin of said first operational amplifier and No. eight pins of said first operational amplifier respectively; The sliding end of said second slide rheostat is connected with No. four pins of said first operational amplifier through the 3rd resistance; No. three pins of said first operational amplifier are connected with ground wire through second resistance; No. five pins of said first operational amplifier are connected with ground wire through second electric capacity; The two ends of said the 4th resistance are connected with No. five pins of said first operational amplifier and No. six pins of said first operational amplifier respectively; The two ends of said switch are connected with No. two pins of said first operational amplifier and No. six pins of said first operational amplifier respectively; The two ends of said switch also are connected in parallel to said first electric capacity, an end of the output that No. seven pins of said first operational amplifier are controller.
The said voltage comparator circuit of the utility model comprises second operational amplifier, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 3rd slide rheostat, stabilivolt and the 3rd electric capacity; No. two pins of said second operational amplifier are connected with No. six pins of said first operational amplifier through said the 5th resistance; No. three pins of said second operational amplifier are connected with the sliding end of said the 3rd slide rheostat through said the 6th resistance; One end of said the 3rd slide rheostat is connected with connecting wires through said the 7th resistance; The other end of said the 3rd slide rheostat is connected with ground wire through stabilivolt; The other end of said the 3rd slide rheostat is connected with the output other end of said controller through said the 8th resistance; The two ends of said the 9th resistance are connected with No. four pins of said second operational amplifier and No. six pins of said second operational amplifier respectively; The two ends of said the tenth resistance are connected with No. five pins of said second operational amplifier and No. six pins of said second operational amplifier respectively; No. seven pins of said second operational amplifier are connected with No. seven pins of said first operational amplifier, and No. five pins of said second operational amplifier are connected with ground wire through the 3rd electric capacity.
The said negative circuit of the utility model comprises triode, the 11 resistance, the 12 resistance and diode; The base stage of said triode is connected with No. six pins of said second operational amplifier through said the 11 resistance; The base stage of said triode also is connected with ground wire through the 12 resistance; The emitter of said triode is connected with connecting wires; The collector of said triode is connected with No. seven pins of said second operational amplifier through diode, and the two ends of said diode and the two ends of said relay are connected in parallel.
The beneficial effect of the utility model is:
The utility model utilizes operational amplifier to form integrating circuit and can realize controlling exposure automatically, and circuit is simple, and has than higher precision.
Description of drawings
Fig. 1 is the structural principle block diagram of the utility model.
Fig. 2 is the circuit structure schematic diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1: the utility model comprises relay, silicon photocell, integrating circuit, reference voltage, voltage comparator circuit and negative circuit; The signal output part of said silicon photocell is connected with the input end of said integrating circuit; The output terminal of said integrating circuit all is connected with the input end of said voltage comparator circuit with said reference voltage output end; The output terminal of said voltage comparator circuit is connected with the input end of said negater circuit, and the output terminal of said negater circuit is connected with the input end of said relay.
As shown in Figure 2: the said integrating circuit of the utility model comprises the first operational amplifier IC1, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, first capacitor C 1, second capacitor C 2, the first slide rheostat W1, second slide rheostat W2 and the K switch; The two ends of first resistance R 1 are connected with the signal output part of light emitting diode D and the sliding end of the first slide rheostat W1 respectively; The other end of the first slide rheostat W1 is connected with the pin two of the first operational amplifier IC1; The two ends of the second slide rheostat W2 are connected with the pin one of the first operational amplifier IC1 and the pin 8 of the first operational amplifier IC1 respectively; The sliding end of the second slide rheostat W2 is connected with the pin 4 of the first operational amplifier IC1 through the 3rd resistance R 3; The pin 3 of the first operational amplifier IC1 is connected with ground wire through second resistance; The pin 5 of said first operational amplifier is connected with ground wire through second capacitor C 2; The two ends of the 4th resistance R 4 are connected with the pin 5 of the first operational amplifier IC1 and the pin 6 of the first operational amplifier IC1 respectively; The two ends of K switch are connected with the pin two of the first operational amplifier IC1 and the pin 6 of the first operational amplifier IC1 respectively, and the pin 7 that the two ends of K switch also are connected in parallel to first capacitor C, 1, the first operational amplifier IC1 is an end of the output of controller.
As shown in Figure 2: the said voltage comparator circuit of the utility model comprises the second operational amplifier IC2, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the 3rd slide rheostat W3, stabilivolt DW and the 3rd capacitor C 3; The pin two of the second operational amplifier IC2 is connected with the pin 6 of the first operational amplifier IC1 through the 5th resistance R 5; The pin 3 of the second operational amplifier IC2 is connected with the sliding end of the 3rd slide rheostat W3 through the 6th resistance R 6; The end of the 3rd slide rheostat W3 is connected with connecting wires through the 7th resistance R 7; The other end of the 3rd slide rheostat W3 is connected with ground wire through stabilivolt DW; The other end of the 3rd slide rheostat W3 is connected with the output other end of controller through the 8th resistance R 8; The two ends of the 9th resistance R 9 are connected with the pin 4 of the second operational amplifier IC2 and the pin 6 of the second operational amplifier IC2 respectively; The two ends of the tenth resistance R 10 are connected with the pin 5 of the second operational amplifier IC2 and the pin 6 of the second operational amplifier IC2 respectively; The pin 7 of the second operational amplifier IC2 is connected with the pin 7 of the first operational amplifier IC1, and the pin 5 of the second operational amplifier IC2 is connected with ground wire through the 3rd capacitor C 3.
As shown in Figure 2: the said negative circuit of the utility model comprises triode BG, the 11 resistance R the 11, the 12 resistance R 112 and diode D1; The base stage of triode BG is connected with the pin 6 of the second operational amplifier IC2 through the 11 resistance R 11; The base stage of triode BG also is connected with ground wire through the 12 resistance R 12; The emitter of triode BG is connected with connecting wires; The collector of triode BG is connected with the pin 7 of the second operational amplifier IC2 through diode D1, and the two ends of diode D1 and the two ends of relay J are connected in parallel.
As shown in Figure 2: with the integrating circuit of one the 12 pin operational amplifier IC1 composition; The voltage that silicon photocell D produces is exactly the input voltage of integrator; The output voltage of integrator is just delivered to voltage comparator and is removed the voltage that compares with reference voltage; When output voltage equaled the Upper threshold voltage of voltage comparator, relay carried out work.
As shown in Figure 2: voltage comparator also is that one the 22 pin operational amplifier IC2 of a kind of usefulness forms; For avoiding causing the relay J misoperation because of 1 electric leakage of first capacitor C; Here adopt sluggish type voltage comparator, when the high level of voltage comparator output was 12V, in-phase levels should be:
Make comparer end of oppisite phase input voltage when high level is transformed into low level-12V must increase to high level.
In like manner, when the comparer output low level, the in-phase input end level should be:
According to each component values of Fig. 2 circuit, get U=6V, during Ems=6.5V, can calculate Ej=4.6V, obtain by adjustment the 6th resistance R 6.By the phase inverter conducting that triode BG forms, the relay J adhesive, the bulb of enlarger is bright, and when the output voltage of integrating circuit reached the Ems value, the output of voltage comparator became low level, and triode BG ends, and relay J discharges.Silicon photocell adopts the 2CR11 type, and maximum output voltage is about 0.5V, also can change photoresistance etc. into, but will do corresponding the change to the circuit of importation.
Claims (4)
1. high precision exposure self-actuated controller; Comprise relay; It is characterized in that: also comprise silicon photocell, integrating circuit, reference voltage, voltage comparator circuit and negative circuit; The signal output part of said silicon photocell is connected with the input end of said integrating circuit; The output terminal of said integrating circuit all is connected with the input end of said voltage comparator circuit with said reference voltage output end, and the output terminal of said voltage comparator circuit is connected with the input end of said negater circuit, and the output terminal of said negater circuit is connected with the input end of said relay.
2. high precision exposure self-actuated controller according to claim 1; It is characterized in that: said integrating circuit comprises first operational amplifier, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, first electric capacity, second electric capacity, first slide rheostat, second slide rheostat and switch; The two ends of said first resistance are connected with the signal output part of said light emitting diode and the sliding end of said first slide rheostat respectively; The other end of said first slide rheostat is connected with No. two pins of said first operational amplifier; The two ends of said second slide rheostat are connected with pin of said first operational amplifier and No. eight pins of said first operational amplifier respectively; The sliding end of said second slide rheostat is connected with No. four pins of said first operational amplifier through the 3rd resistance; No. three pins of said first operational amplifier are connected with ground wire through second resistance; No. five pins of said first operational amplifier are connected with ground wire through second electric capacity; The two ends of said the 4th resistance are connected with No. five pins of said first operational amplifier and No. six pins of said first operational amplifier respectively; The two ends of said switch are connected with No. two pins of said first operational amplifier and No. six pins of said first operational amplifier respectively, and the two ends of said switch also are connected in parallel to said first electric capacity, an end of the output that No. seven pins of said first operational amplifier are controller.
3. high precision exposure self-actuated controller according to claim 1; It is characterized in that: said voltage comparator circuit comprises second operational amplifier, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 3rd slide rheostat, stabilivolt and the 3rd electric capacity; No. two pins of said second operational amplifier are connected with No. six pins of said first operational amplifier through said the 5th resistance; No. three pins of said second operational amplifier are connected with the sliding end of said the 3rd slide rheostat through said the 6th resistance; One end of said the 3rd slide rheostat is connected with connecting wires through said the 7th resistance; The other end of said the 3rd slide rheostat is connected with ground wire through stabilivolt; The other end of said the 3rd slide rheostat is connected with the output other end of said controller through said the 8th resistance; The two ends of said the 9th resistance are connected with No. four pins of said second operational amplifier and No. six pins of said second operational amplifier respectively; The two ends of said the tenth resistance are connected with No. five pins of said second operational amplifier and No. six pins of said second operational amplifier respectively, and No. seven pins of said second operational amplifier are connected with No. seven pins of said first operational amplifier, and No. five pins of said second operational amplifier are connected with ground wire through the 3rd electric capacity.
4. high precision exposure self-actuated controller according to claim 1; It is characterized in that: said negative circuit comprises triode, the 11 resistance, the 12 resistance and diode; The base stage of said triode is connected with No. six pins of said second operational amplifier through said the 11 resistance; The base stage of said triode also is connected with ground wire through the 12 resistance; The emitter of said triode is connected with connecting wires, and the collector of said triode is connected with No. seven pins of said second operational amplifier through diode, and the two ends of said diode and the two ends of said relay are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120460043XU CN202331000U (en) | 2011-11-18 | 2011-11-18 | High-precision exposure automatic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120460043XU CN202331000U (en) | 2011-11-18 | 2011-11-18 | High-precision exposure automatic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202331000U true CN202331000U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120460043XU Expired - Fee Related CN202331000U (en) | 2011-11-18 | 2011-11-18 | High-precision exposure automatic controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202331000U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018099325A1 (en) * | 2016-11-29 | 2018-06-07 | 上海微电子装备（集团）股份有限公司 | System and method for controlling exposure dose of light source |
| CN108567437A (en) * | 2017-03-07 | 2018-09-25 | 上海奕瑞光电子科技股份有限公司 | Automatic exposure detection device based on SiPM and method, flat panel detector |
-
2011
- 2011-11-18 CN CN201120460043XU patent/CN202331000U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018099325A1 (en) * | 2016-11-29 | 2018-06-07 | 上海微电子装备（集团）股份有限公司 | System and method for controlling exposure dose of light source |
| US10642163B2 (en) | 2016-11-29 | 2020-05-05 | Shanghai Micro Electronics Equipment (Group) Co., Ltd. | System and method for controlling exposure dose of light source |
| CN108567437A (en) * | 2017-03-07 | 2018-09-25 | 上海奕瑞光电子科技股份有限公司 | Automatic exposure detection device based on SiPM and method, flat panel detector |
| CN108567437B (en) * | 2017-03-07 | 2021-05-07 | 上海奕瑞光电子科技股份有限公司 | Automatic exposure detection device and method based on SiPM and flat panel detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131118 |