CN104407245A - Photoresistor characteristics and application tester - Google Patents
Photoresistor characteristics and application tester Download PDFInfo
- Publication number
- CN104407245A CN104407245A CN201410683210.5A CN201410683210A CN104407245A CN 104407245 A CN104407245 A CN 104407245A CN 201410683210 A CN201410683210 A CN 201410683210A CN 104407245 A CN104407245 A CN 104407245A
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- integrated package
- resistance
- switch
- photoresistance
- bulb
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Abstract
The invention relates to a photoresistor characteristics and application tester and belongs to the field of physical testers. A circuit is composed of two parts including a main circuit and an illuminance adjusting and display circuit. The photoresistor characteristics and application tester is characterized in that a rectangular box is perpendicularly fixed on a demonstration plate, a lamp L and a photosensitive resistor together with an illuminometer probe are arranged on the left side and the right side inside the rectangular box, an intermediate wooden plate upwardly drawable is arranged in the middle of the rectangular box, a front wooden plate rightwardly drawable is arranged on the front of the rectangular box, and illuminance of the lamp L can be changed by adjusting a dimming potentiometer. The illuminometer is used for displaying the illuminance, a milliammeter is used for demonstrating current change in the photoresistor, an ohmmeter is used for demonstrating resistance change of the photoresistor, and application of the photoresistor is demonstrated by on and off of a lamp H. The photoresistor characteristics and application tester is vivid, visual, capable of demonstrating characteristics and application of the photoresistor, and also can be used for demonstration and a group-experiment tester for students.
Description
Technical field
The present invention relates to a kind of characteristic of photoresistance value and application experiment instrument, belong to physics educational apparatus field.
Background technology
At present, in physics teaching, demonstration instrument about characteristic of photoresistance value can only demonstrate the characteristic of photoresistance, the application of photoresistance in life can not be demonstrated, student sees that rear not interested, impression is deep, and this experimental apparatus can demonstrate the characteristic of photoresistance, can demonstrate again the application of photoresistance in life, as teaching demonstration use, student experiment in group instrument can be can be used as again.
Summary of the invention
The object of this invention is to provide a kind of characteristic of photoresistance value and application experiment instrument, the characteristic of photoresistance can be demonstrated, the application of photoresistance in life can be demonstrated again.
The object of the present invention is achieved like this: circuit is made up of two parts, and Part I is main circuit, and Part II is adjusting intensity of illumination and display circuit, and main circuit is by direct supply E, switch S
1, switch S
2, photoresistance R
g, resistance R
1, resistance R
2, adjustable resistance R
3, integrated package I
1, direct current electromagnetic relay KA (coil), electrolytic condenser C
1, diode VD, milliammeter mA, ohmmeter Ω form, adjusting intensity of illumination and display circuit are by 220V AC power, transformer T, rectification circuit B, electrolytic condenser C
2, integrated package I
2, switch S
3, resistance R
4, light adjusting potentiometer R
5, bulb L, direct current electromagnetic relay KA (normally opened contact), bulb H form, the positive pole of direct supply E connects switch S
1one end, switch S
1another termination electrolytic condenser C
1positive pole, electrolytic condenser C
1negative pole connect the negative pole of direct supply E, resistance R
1, milliammeter mA, photoresistance R
g, adjustable resistance R
3electrolytic condenser C is connected in parallel on after four element series connection
1two ends, ohmmeter Ω is connected in parallel on photoresistance R
gtwo ends, switch S
2a termination switch S
1the other end, switch S
2the other end simultaneously connecting resistance R
2one end, one end of direct current electromagnetic relay KA coil, the negative pole of diode VD, resistance R
2the other end meet integrated package I simultaneously
11 pin, 5 pin, be connected on integrated package I after the other end of direct current electromagnetic relay KA coil is connected with the positive pole of diode VD
14 pin, integrated package I
12 pin meet adjustable resistance R
3intermediate ends, integrated package I
13 pin connect the negative pole of direct supply E, the two ends of the 12V winding of the input termination transformer T of two termination AC power 220V of the 220V winding of transformer T, rectification circuit B, electrolytic condenser C
2be connected in parallel on the output terminal of rectification circuit B, integrated package I
2input end be connected on the output terminal of rectification circuit B, switch S
3, resistance R
4, light adjusting potentiometer R
5, bulb L connect after be connected on integrated package I
2output terminal, be connected on the two ends of the 12V winding of transformer T after the normally opened contact series connection of bulb H and direct current electromagnetic relay KA, it is characterized in that: rectangular box is vertically fixed on demonstration board, bulb L and photoresistance R
g, illuminometer probe Z
2be placed on the left and right sides in rectangular box respectively, there is the middle plank that can upwards twitch the centre of rectangular box, and the front of rectangular box is the front plank that can twitch to the right, regulates light adjusting potentiometer R
5large I change the illuminance of bulb L, by changing switch S
1, switch S
2switch on and off state, the characteristic of photoresistance can be demonstrated, the application of photoresistance in life can be demonstrated again, bulb H 12V bulb, bulb L 12V bulb, integrated package I
1with TWH8751, integrated package I
2with three terminal regulator 7812, illuminometer Z
1be used for showing photoresistance R
gthe illuminance received, milliammeter mA is used for demonstrating photoresistance R
gthe change of middle electric current, ohmmeter Ω is used for demonstrating photoresistance R
gthe change of resistance, bulb H bright with do not work for demonstrating photoresistance R
gapplication.
Owing to adopting technique scheme, the advantage that the present invention has and good effect are: the characteristic can demonstrating photoresistance, can demonstrate again the application of photoresistance in life, and structure is simple, and intuitively accurately, operation demonstration is convenient.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1, Fig. 2 are circuit theory diagrams of the present invention.
Fig. 3 is one-piece construction schematic diagram of the present invention.
Fig. 4 is rectangular box structural representation of the present invention.
Fig. 5 is the left view of Fig. 4.
E. direct supply S in figure
1. switch S
2. switch R
g. photoresistance R
1. resistance R
2. resistance R
3. adjustable resistance I
1. integrated package KA. direct current electromagnetic relay (coil, normally opened contact) C
1. electrolytic condenser VD. diode mA. milliammeter Ω. ohmmeter T. transformer H. bulb B. rectification circuit C
2. electrolytic condenser I
2. three terminal regulator 7812 S
3. switch R
4. resistance R
5. light adjusting potentiometer L. bulb Z
1. illuminometer Z
2. illuminometer is popped one's head in 1. base 2. demonstration board 3. rectangular box 4. middle plank 5. front planks
Embodiment:
In FIG, the positive pole of direct supply (E) meets switch (S
1) one end, switch (S
1) another termination electrolytic condenser (C
1) positive pole, electrolytic condenser (C
1) negative pole connect the negative pole of direct supply (E), resistance (R
1), milliammeter (mA), photoresistance (R
g), adjustable resistance (R
3) be connected in parallel on electrolytic condenser (C after series connection
1) two ends, ohmmeter (Ω) is connected in parallel on photoresistance (R
g) two ends, switch (S
2) a termination switch (S
1) the other end, switch (S
2) the other end simultaneously connecting resistance (R
2) one end, one end of direct current electromagnetic relay (KA) coil, the negative pole of diode (VD), resistance (R
2) the other end meet integrated package (I simultaneously
1) 1 pin, 5 pin, be connected on integrated package (I after the other end of direct current electromagnetic relay (KA) coil is connected with the positive pole of diode (VD)
1) 4 pin, integrated package (I
1) 2 pin meet adjustable resistance (R
3) intermediate ends, integrated package (I
1) 3 pin connect the negative pole of direct supply (E), integrated package (I
1) use TWH8751.
In fig. 2, the two ends of the 12V winding of transformer (T) are connected on after the normally opened contact series connection of bulb (H) and direct current electromagnetic relay (KA), two termination AC power 220V of the 220V winding of transformer (T), the two ends of the 12V winding of the input termination transformer (T) of rectification circuit (B), integrated package (I
2) input end be connected on the output terminal of rectification circuit (B), electrolytic condenser (C
2) be connected in parallel on the output terminal of rectification circuit (B), switch (S
3), resistance (R
4), light adjusting potentiometer (R
5), bulb (L) series connection after be connected on integrated package (I
2) output terminal, integrated package (I
2) use three terminal regulator 7812,12V bulb used by bulb (H), and 12V bulb used by bulb (L).
In figure 3, switch (S
1), switch (S
2), switch (S
3), light adjusting potentiometer (R
5), direct current electromagnetic relay (KA), milliammeter (mA), ohmmeter (Ω), illuminometer (Z
1), bulb (H) is placed in the front of demonstration board (2); Rectangular box (3) is vertically fixed on demonstration board (2), bulb L and photoresistance (R
g), illuminometer probe (Z
2) be placed on the inner left and right sides of rectangular box (3) respectively, there is the middle plank (4) that can upwards twitch the centre of rectangular box (3), the front of rectangular box (3) is the front plank (5) that can twitch to the right, regulates light adjusting potentiometer R
5large I change the illuminance of bulb L; Resistance (R
1), resistance (R
2), adjustable resistance (R
3), resistance (R
4), integrated package (I
1), integrated package (I
2), electrolytic condenser (C
1), electrolytic condenser (C
2), diode (VD), rectification circuit (B), transformer (T) be fixed on the reverse side of demonstration board (2).
Claims (1)
1. characteristic of photoresistance value and an application experiment instrument, circuit is made up of two parts, and Part I is main circuit, and Part II is adjusting intensity of illumination and display circuit, and main circuit is by direct supply E, switch S
1, switch S
2, photoresistance R
g, resistance R
1, resistance R
2, adjustable resistance R
3, integrated package I
1, direct current electromagnetic relay KA (coil), electrolytic condenser C
1, diode VD, milliammeter mA, ohmmeter Ω form, adjusting intensity of illumination and display circuit are by 220V AC power, transformer, rectification circuit, electrolytic condenser C
2, integrated package I
2, resistance R
4, light adjusting potentiometer R
5, bulb L, direct current electromagnetic relay KA (normally opened contact), bulb H form, the positive pole of direct supply E connects switch S
1one end, switch S
1another termination electrolytic condenser C
1positive pole, electrolytic condenser C
1negative pole connect the negative pole of direct supply E, resistance R
1, milliammeter mA, photoresistance R
g, adjustable resistance R
3electrolytic condenser C is connected in parallel on after four element series connection
1two ends, ohmmeter Ω is connected in parallel on photoresistance R
gtwo ends, switch S
2a termination switch S
1the other end, switch S
2the other end simultaneously connecting resistance R
2one end, one end of direct current electromagnetic relay KA coil, the negative pole of diode VD, resistance R
2the other end meet integrated package I simultaneously
11 pin, 5 pin, be connected on integrated package I after the other end of direct current electromagnetic relay KA coil is connected with the positive pole of diode VD
14 pin, integrated package I
12 pin meet adjustable resistance R
3intermediate ends, integrated package I
13 pin connect the negative pole of direct supply E, two termination AC power 220V of the 220V winding of transformer T, integrated package I
2input end be connected on the output terminal of rectification circuit, switch S
3, resistance R
4, light adjusting potentiometer R
5, bulb L connect after be connected on integrated package I
2output terminal, the two ends of the 12V winding of transformer T are connected on after the normally opened contact series connection of bulb H and direct current electromagnetic relay KA, rectangular box is vertically fixed on demonstration board, bulb L and photoresistance, illuminometer are popped one's head in the left and right sides be placed on respectively in rectangular box, there is the middle plank that can upwards twitch the centre of rectangular box, and the front of rectangular box is the front plank that can twitch to the right; Integrated package I
1with TWH8751, integrated package I
2with three terminal regulator 7812.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683210.5A CN104407245A (en) | 2014-11-13 | 2014-11-13 | Photoresistor characteristics and application tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683210.5A CN104407245A (en) | 2014-11-13 | 2014-11-13 | Photoresistor characteristics and application tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104407245A true CN104407245A (en) | 2015-03-11 |
Family
ID=52644890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410683210.5A Pending CN104407245A (en) | 2014-11-13 | 2014-11-13 | Photoresistor characteristics and application tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104407245A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966444A (en) * | 2015-06-30 | 2015-10-07 | 盐城工业职业技术学院 | Thermo-sensitive sensor, photosensitive sensor, reed switch characteristic and application demonstration instrument |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87212563U (en) * | 1987-12-09 | 1988-08-24 | 施振华 | Teaching circuit demonstrator |
| DE19703514A1 (en) * | 1997-01-31 | 1998-08-06 | Telefunken Microelectron | Adjusting resistance value of photoresistors |
| US20080103706A1 (en) * | 2006-10-27 | 2008-05-01 | Hon Hai Precision Industry Co., Ltd. | System and method for testing leds on a motherboard |
| CN203631032U (en) * | 2013-12-11 | 2014-06-04 | 杜庸 | Demonstration teaching aid of classroom illumination light-operated system |
| CN204303229U (en) * | 2014-11-13 | 2015-04-29 | 盐城工业职业技术学院 | Characteristic of photoresistance value and application experiment instrument |
-
2014
- 2014-11-13 CN CN201410683210.5A patent/CN104407245A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87212563U (en) * | 1987-12-09 | 1988-08-24 | 施振华 | Teaching circuit demonstrator |
| DE19703514A1 (en) * | 1997-01-31 | 1998-08-06 | Telefunken Microelectron | Adjusting resistance value of photoresistors |
| US20080103706A1 (en) * | 2006-10-27 | 2008-05-01 | Hon Hai Precision Industry Co., Ltd. | System and method for testing leds on a motherboard |
| CN203631032U (en) * | 2013-12-11 | 2014-06-04 | 杜庸 | Demonstration teaching aid of classroom illumination light-operated system |
| CN204303229U (en) * | 2014-11-13 | 2015-04-29 | 盐城工业职业技术学院 | Characteristic of photoresistance value and application experiment instrument |
Non-Patent Citations (2)
| Title |
|---|
| 刘彩琼: "路灯节能控制创意设计初探", 《中国电力教育》 * |
| 荐玉奎 等: "巧用声光控开关演示光敏电阻特性", 《物理实验》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966444A (en) * | 2015-06-30 | 2015-10-07 | 盐城工业职业技术学院 | Thermo-sensitive sensor, photosensitive sensor, reed switch characteristic and application demonstration instrument |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |