CN102436774A - Humidity sensing characteristic demonstrator of inorganic electrolyte type humidity sensor - Google Patents
Humidity sensing characteristic demonstrator of inorganic electrolyte type humidity sensor Download PDFInfo
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- CN102436774A CN102436774A CN2011104602533A CN201110460253A CN102436774A CN 102436774 A CN102436774 A CN 102436774A CN 2011104602533 A CN2011104602533 A CN 2011104602533A CN 201110460253 A CN201110460253 A CN 201110460253A CN 102436774 A CN102436774 A CN 102436774A
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- humidity sensor
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- integrated circuit
- humidity
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Abstract
The invention relates to a humidity sensing characteristic demonstrator of an inorganic electrolyte type humidity sensor and belongs to the technical field of teaching demonstration instruments. The humidity sensing characteristic demonstrator is characterized in that after a variable resistor and an ammeter are connected in series, one end is connected with the anode of a DC (direct current) power supply through a power switch, and the other end is connected with the public end of a conversion switch; after a Dunmore type LiCl humidity sensor, an immersion type LiCl humidity sensor and a vacuum coating type LiCl humidity sensor are connected in parallel, one end is connected with the cathode of the DC power supply, and the other end is connected with the conversion switch; and the pin 2 of a 555 integrated circuit is connected with the variable resistor. By adopting the technical scheme, the humidity sensing characteristic demonstrator provided by the invention has the advantages and positive effects that the automatic control function of the Dunmore type LiCl humidity sensor, the immersion type LiCl humidity sensor and the vacuum coating type LiCl humidity sensor in a circuit can be demonstrated according to the changes of the readings of the ammeter and a voltmeter, the working state of an LED (light emitting diode) and the condition of whether a speaker produces sound, thus the intuitiveness is strong, and the manufacturing cost is low.
Description
Technical field
The present invention relates to a kind of inorganic electrolyte formula humidity sensor humidity sensing characteristic demonstrator, belong to teaching demonstration instrument technical field.
Background technology
At present; In the teaching of electronic circuit; When lecturing the humidity sensing characteristic of inorganic electrolyte formula humidity sensor (stepping on Morse LiCl humidity sensor, impregnated LiCl humidity sensor, vacuum coating formula LiCl humidity sensor); Do not have the demonstration instrument demonstration, the student can not understand its automatic control action in circuit intuitively.
Summary of the invention
Technical matters to be solved by this invention provides a kind of inorganic electrolyte formula humidity sensor humidity sensing characteristic demonstrator, and whether Morse LiCl humidity sensor, impregnated LiCl humidity sensor, the automatic control action of vacuum coating formula LiCl humidity sensor in circuit are stepped in the sounding demonstration for the variation that can be through reometer, voltage table reading and the duty of light emitting diode and loudspeaker.
The technical solution adopted for the present invention to solve the technical problems is: circuit by reometer, voltage table, switch, step on Morse LiCl humidity sensor, impregnated LiCl humidity sensor, vacuum coating formula LiCl humidity sensor, 555 integrated circuit, resistance, electric capacity, light emitting diode and loudspeaker and form; 4 pin of 555 integrated circuit, 8 pin connect the positive pole of direct supply through power switch; 1 pin of 555 integrated circuit connects the negative pole of direct supply; 5 pin of 555 integrated circuit connect the negative pole of direct supply through electric capacity b; 6 pin, 7 pin of 555 integrated circuit link to each other with resistance; Resistance and electric capacity a series connection, power switch and power supply series connection, the end after voltage table, light emitting diode, the loudspeaker parallel connection links to each other with 3 pin of 555 integrated circuit; The negative pole of the other end and direct supply links to each other; It is characterized in that: the end after the series connection of variable resistor and reometer links to each other through the positive pole of power switch and direct supply, and the other end links to each other with the switch common port, and an end and the negative pole of direct supply stepped on after Morse LiCl humidity sensor, impregnated LiCl humidity sensor, the parallel connection of vacuum coating formula LiCl humidity sensor link to each other; The other end links to each other with switch, and 2 pin of 555 integrated circuit link to each other with variable resistor.Demonstration board links to each other with casing; The front of demonstration board is equipped with reometer, voltage table, light emitting diode, variable resistor, switch and power switch; Hygrometer inserts in the casing; The upper end is fixed on the front of demonstration board, steps on Morse LiCl humidity sensor, impregnated LiCl humidity sensor, vacuum coating formula LiCl humidity sensor and places casing, and the casing front is a transparent panel.
Owing to adopt technique scheme; Advantage and good effect that the present invention had are: whether Morse LiCl humidity sensor, impregnated LiCl humidity sensor, the automatic control action of vacuum coating formula LiCl humidity sensor in circuit are stepped in the sounding demonstration for the variation that can be through reometer, voltage table reading and the duty of light emitting diode and loudspeaker; Intuitive is strong, and cost is not high yet.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is circuit theory diagrams of the present invention.
Fig. 2 is the structural representation of the embodiment of the invention.
R among the figure
1. variable resistor, R
2. resistance, H
1. step on Morse LiCl humidity sensor, H
2. impregnated LiCl humidity sensor, H
3. vacuum coating formula LiCl humidity sensor, C
1. electric capacity a, C
2. electric capacity b, B. switch, A. reometer, integrated circuit I.555, V. voltage table, G. light emitting diode, Y. loudspeaker, E. power supply, K. power switch, F. demonstration board, Z. hygrometer, D. casing.
Embodiment
In Fig. 1,4 pin of 555 integrated circuit (I), 8 pin connect the positive pole of direct supply (E) through power switch (K), and 1 pin of 555 integrated circuit (I) connects the negative pole of direct supply (E), and 5 pin of 555 integrated circuit (I) are through electric capacity b (C
2) connect the negative pole of direct supply (E), 6 pin of 555 integrated circuit (I), 7 pin and resistance (R
2) link to each other resistance (R
2) and electric capacity a (C
1) series connection, power switch (K) and power supply (E) series connection, end after voltage table (V), light emitting diode (G), loudspeaker (Y) parallel connection and 3 pin of 555 integrated circuit (I) link to each other, and the other end links to each other with the negative pole of direct supply (E), variable resistor (R
1) link to each other through the positive pole of power switch (K) with direct supply (E) with a end after reometer (A) series connection, the other end links to each other with switch (B) common port, steps on Morse LiCl humidity sensor (H
1), impregnated LiCl humidity sensor (H
2), vacuum coating formula LiCl humidity sensor (H
3) a end and the negative pole of direct supply (E) after the parallel connection link to each other, the other end links to each other with switch (B), 2 pin of 555 integrated circuit (I) and variable resistor (R
1) link to each other.
In Fig. 2, demonstration board (F) links to each other with casing (D), and the front of demonstration board (F) is equipped with reometer (A), voltage table (V), light emitting diode (G), variable resistor (R
1), switch (B) and power switch (K), hygrometer (Z) inserts in the casing (D), the upper end is fixed on the front of demonstration board (F), casing (D) front is a transparent panel.
Claims (1)
1. inorganic electrolyte formula humidity sensor humidity sensing characteristic demonstrator; Circuit by reometer, voltage table, switch, step on Morse LiCl humidity sensor, impregnated LiCl humidity sensor, vacuum coating formula LiCl humidity sensor, 555 integrated circuit, resistance, electric capacity, light emitting diode and loudspeaker and form; 4 pin of 555 integrated circuit (I), 8 pin connect the positive pole of direct supply (E) through power switch (K); 1 pin of 555 integrated circuit (I) connects the negative pole of direct supply (E), and 5 pin of 555 integrated circuit (I) are through electric capacity b (C
2) connect the negative pole of direct supply (E), 6 pin of 555 integrated circuit (I), 7 pin and resistance (R
2) link to each other resistance (R
2) and electric capacity a (C
1) series connection, power switch (K) and power supply (E) series connection, end after voltage table (V), light emitting diode (G), loudspeaker (Y) parallel connection and 3 pin of 555 integrated circuit (I) link to each other, and the other end links to each other with the negative pole of direct supply (E), it is characterized in that: variable resistor (R
1) link to each other through the positive pole of power switch (K) with direct supply (E) with a end after reometer (A) series connection, the other end links to each other with switch (B) common port, steps on Morse LiCl humidity sensor (H
1), impregnated LiCl humidity sensor (H
2), vacuum coating formula LiCl humidity sensor (H
3) a end and the negative pole of direct supply (E) after the parallel connection link to each other, the other end links to each other with switch (B), 2 pin of 555 integrated circuit (I) and variable resistor (R
1) link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104602533A CN102436774A (en) | 2011-12-26 | 2011-12-26 | Humidity sensing characteristic demonstrator of inorganic electrolyte type humidity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104602533A CN102436774A (en) | 2011-12-26 | 2011-12-26 | Humidity sensing characteristic demonstrator of inorganic electrolyte type humidity sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102436774A true CN102436774A (en) | 2012-05-02 |
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| CN2011104602533A Pending CN102436774A (en) | 2011-12-26 | 2011-12-26 | Humidity sensing characteristic demonstrator of inorganic electrolyte type humidity sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093674A (en) * | 2012-12-26 | 2013-05-08 | 盐城师范学院 | Heat-sensitive cable characteristic demonstration instrument |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261777A (en) * | 2008-04-18 | 2008-09-10 | 南京化工职业技术学院 | Heat sensitive resistance, photosensitive, force sensitive, humidity sensitive resistance, magnetism sensitive resistance variability feature demonstrator |
| CN102097027A (en) * | 2010-11-22 | 2011-06-15 | 盐城师范学院 | Characteristic demonstrator for ultraviolet sensors, infrared sensors, laser sensors |
| CN102254473A (en) * | 2011-06-14 | 2011-11-23 | 盐城师范学院 | Demonstrator for characteristics of automatic control circuit of sound sensitive sensors |
-
2011
- 2011-12-26 CN CN2011104602533A patent/CN102436774A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261777A (en) * | 2008-04-18 | 2008-09-10 | 南京化工职业技术学院 | Heat sensitive resistance, photosensitive, force sensitive, humidity sensitive resistance, magnetism sensitive resistance variability feature demonstrator |
| CN102097027A (en) * | 2010-11-22 | 2011-06-15 | 盐城师范学院 | Characteristic demonstrator for ultraviolet sensors, infrared sensors, laser sensors |
| CN102254473A (en) * | 2011-06-14 | 2011-11-23 | 盐城师范学院 | Demonstrator for characteristics of automatic control circuit of sound sensitive sensors |
Non-Patent Citations (1)
| Title |
|---|
| 徐遵: "湿度传感器应用电路的分析与探讨", 《大众科技》, no. 10, 31 October 2010 (2010-10-31), pages 1 - 2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093674A (en) * | 2012-12-26 | 2013-05-08 | 盐城师范学院 | Heat-sensitive cable characteristic demonstration instrument |
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Application publication date: 20120502 |