CN204303229U - Characteristic of photoresistance value and application experiment instrument - Google Patents
Characteristic of photoresistance value and application experiment instrument Download PDFInfo
- Publication number
- CN204303229U CN204303229U CN201420716380.4U CN201420716380U CN204303229U CN 204303229 U CN204303229 U CN 204303229U CN 201420716380 U CN201420716380 U CN 201420716380U CN 204303229 U CN204303229 U CN 204303229U
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- China
- Prior art keywords
- resistance
- integrated package
- switch
- bulb
- photo resistance
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to a kind of characteristic of photoresistance value and application experiment instrument, belong to physical experiment apparatus field, circuit is made up of two parts, Part I is main circuit, Part II is adjusting intensity of illumination and display circuit, it is characterized in that: rectangular box is vertically fixed on demonstration board, bulb L and photo resistance, illumination photometer is 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, the front of rectangular box is the front plank that can twitch to the right, the large I of light adjusting potentiometer is regulated to change the illuminance of bulb L, illumination photometer is used for display light illumination, milliammeter is used for demonstrating the change of electric current in photo resistance, ohmmeter is used for demonstrating the change of photo resistance resistance, the bright application with not working for demonstrating photo resistance of bulb H, the demonstration of this instrument is visual in image, the characteristic of photo resistance can be demonstrated, the application of photo resistance in life can be demonstrated again, both can be used as demonstration to use, can be used as again student experiment in group instrument.
Description
Technical field
The utility model relates to a kind of characteristic of photoresistance value and application experiment instrument, belongs 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 photo resistance, the application of photo resistance in life can not be demonstrated, student sees that rear not interested, impression is deep, and this laboratory apparatus can demonstrate the characteristic of photo resistance, can demonstrate again the application of photo resistance in life, as teaching demonstration use, student experiment in group instrument can be can be used as again.
Utility model content
The purpose of this utility model is to provide a kind of characteristic of photoresistance value and application experiment instrument, can demonstrate the characteristic of photo resistance, can demonstrate again the application of photo resistance in life.
The purpose of this utility model is achieved in that 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 dc source E, switch S
1, switch S
2, photo resistance R
g, resistance R
1, resistance R
2, adjustable resistance R
3, integrated package I
1, direct current electromagnetic relay KA coil, electrolytic capacitor 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 capacitor 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 dc source E connects switch S
1one end, switch S
1another termination electrolytic capacitor C
1positive pole, electrolytic capacitor C
1negative pole connect the negative pole of dc source E, resistance R
1, milliammeter mA, photo resistance R
g, adjustable resistance R
3electrolytic capacitor C is connected in parallel on after four element series connection
1two ends, ohmmeter Ω is connected in parallel on photo resistance 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 dc source 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 capacitor C
2be connected in parallel on the output of rectification circuit B, integrated package I
2input be connected on the output 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, 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 photo resistance R
g, illumination photometer 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 photo resistance can be demonstrated, the application of photo resistance 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, illumination photometer Z
1be used for showing photo resistance R
gthe illuminance received, milliammeter mA is used for demonstrating photo resistance R
gthe change of middle electric current, ohmmeter Ω is used for demonstrating photo resistance R
gthe change of resistance, bulb H bright with do not work for demonstrating photo resistance R
gapplication.
Owing to adopting technique scheme, the advantage that the utility model has and good effect are: the characteristic can demonstrating photo resistance, can demonstrate again the application of photo resistance in life, and structure is simple, and intuitively accurately, operation demonstration is convenient.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1, Fig. 2 are circuit theory diagrams of the present utility model.
Fig. 3 is overall structure schematic diagram of the present utility model.
Fig. 4 is rectangular box structural representation of the present utility model.
Fig. 5 is the left view of Fig. 4.
E. dc source S in figure
1. switch S
2. switch R
g. photo resistance 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 capacitor VD. diode mA. milliammeter Ω. ohmmeter T. transformer H. bulb B. rectification circuit C
2. electrolytic capacitor I
2. three terminal regulator 7812 S
3. switch R
4. resistance R
5. light adjusting potentiometer L. bulb Z
1. illumination photometer Z
2. illumination photometer is popped one's head in 1. base 2. demonstration board 3. rectangular box 4. middle plank 5. front planks
Detailed description of the invention:
In FIG, the positive pole of dc source (E) meets switch (S
1) one end, switch (S
1) another termination electrolytic capacitor (C
1) positive pole, electrolytic capacitor (C
1) negative pole connect the negative pole of dc source (E), resistance (R
1), milliammeter (mA), photo resistance (R
g), adjustable resistance (R
3) be connected in parallel on electrolytic capacitor (C after series connection
1) two ends, ohmmeter (Ω) is connected in parallel on photo resistance (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 dc source (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 be connected on the output of rectification circuit (B), electrolytic capacitor (C
2) be connected in parallel on the output 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, 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), illumination photometer (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 photo resistance (R
g), illumination photometer 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 capacitor (C
1), electrolytic capacitor (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 dc source E, switch S
1, switch S
2, photo resistance R
g, resistance R
1, resistance R
2, adjustable resistance R
3, integrated package I
1, direct current electromagnetic relay KA coil, electrolytic capacitor 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 capacitor 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 dc source E connects switch S
1one end, switch S
1another termination electrolytic capacitor C
1positive pole, electrolytic capacitor C
1negative pole connect the negative pole of dc source E, resistance R
1, milliammeter mA, photo resistance R
g, adjustable resistance R
3electrolytic capacitor C is connected in parallel on after four element series connection
1two ends, ohmmeter Ω is connected in parallel on photo resistance 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 dc source E, two termination AC power 220V of the 220V winding of transformer T, integrated package I
2input be connected on the output 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, 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 photo resistance, illumination photometer 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 |
|---|---|---|---|
| CN201420716380.4U CN204303229U (en) | 2014-11-13 | 2014-11-13 | Characteristic of photoresistance value and application experiment instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716380.4U CN204303229U (en) | 2014-11-13 | 2014-11-13 | Characteristic of photoresistance value and application experiment instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204303229U true CN204303229U (en) | 2015-04-29 |
Family
ID=53108753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420716380.4U Expired - Fee Related CN204303229U (en) | 2014-11-13 | 2014-11-13 | Characteristic of photoresistance value and application experiment instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204303229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407245A (en) * | 2014-11-13 | 2015-03-11 | 盐城工业职业技术学院 | Photoresistor characteristics and application tester |
-
2014
- 2014-11-13 CN CN201420716380.4U patent/CN204303229U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407245A (en) * | 2014-11-13 | 2015-03-11 | 盐城工业职业技术学院 | Photoresistor characteristics and application tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20161113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |