CN201734713U - Skin resistance real-time monitoring and feedback device - Google Patents
Skin resistance real-time monitoring and feedback device Download PDFInfo
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- CN201734713U CN201734713U CN2010202311820U CN201020231182U CN201734713U CN 201734713 U CN201734713 U CN 201734713U CN 2010202311820 U CN2010202311820 U CN 2010202311820U CN 201020231182 U CN201020231182 U CN 201020231182U CN 201734713 U CN201734713 U CN 201734713U
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Abstract
The utility model provides a skin resistance real-time monitoring and feedback device comprising a microprocessor (1), a potentiometer (2) connected with the output end of the microprocessor (1), an amplifier (3) connected with the output end of the potentiometer (2), a transformer (4) connected with the output end of the amplifier (3), and a skin electrode (5) connected with the output end of the transformer (4), a skin resistance detection circuit (6)connected with the skin electrode (5), an A/D converter, the output end of which is connected with the input end of the microprocessor (1), connected with the output end of the skin resistance detection circuit (6). By using the utility model, the skin resistance can be monitored in real time, meanwhile the skin resistance can be increased to prevent the too high voltage applied on the human skin.
Description
Technical field
This utility model relates to a kind of skin and listens acoustic device, particularly a kind of real-time monitoring and feedback device of skin resistance.
Background technology
Skin is listened audio technology to be meant acoustical signal is converted into the signal of telecommunication, thereby acts on the human body skin, makes human body skin must stimulate the perception that obtains for sound by electric current.
Utilize skin why can listen sound, be because the skin of human body generally has powerful resistance, under the condition of voltage, can produce faint electric current, by processing that this electric current is boosted, thereby realize utilizing skin to listen sound, yet the skin of human body is subjected to the influence of many-sided factor, for example, the damage of skin, people's perspire degree, and stress etc., according to statistics, when the skin of human body is in drying, its resistance is up to more than the 10M Ω, and when the people is in excited or motion back or horny layer when being damaged, the resistance drop of skin is low to moderate below the 500k Ω.Therefore, when the resistance of human body skin hanged down, skin phonendoscope produced bigger electric current on skin, thereby the patient is produced harmful effect, even patient's safety is produced certain influence, simultaneously, also influenced the result of use of skin phonendoscope.
The utility model content
Technical problem to be solved in the utility model provides a kind of real-time monitoring and feedback device of skin resistance, it can be monitored the resistance of skin constantly, simultaneously, less resistance is amplified, thereby prevent because of the resistance of human body skin too smallly, and make the excessive problem of voltage on the human body skin of being applied to.
For achieving the above object, this utility model provides a kind of real-time monitoring and feedback device of skin resistance, comprise microprocessor, the potentiometer that links to each other with the outfan of microprocessor, the amplifier that links to each other with the outfan of potentiometer, the transformator that links to each other with the outfan of amplifier, the skin electrode that links to each other with the outfan of transformator, the skin resistance testing circuit that links to each other with skin electrode, and the A/D converter that links to each other with the output of skin resistance testing circuit, the outfan of described A/D converter links to each other with the input of microprocessor.
As preferred embodiment of the present utility model, described potentiometer is selected from the programmable digital potentiometer; As preferred embodiment of the present utility model, described transformator is selected from the audio-frequency electric depressor.
The real-time monitoring and the feedback device of this utility model skin resistance have the following advantages at least: by this utility model device, the resistance sizes of human body skin can be monitored constantly, simultaneously, because potentiometer can amplify it according to the size of resistance, therefore, avoided too small, and made that the voltage be applied on the human body skin is excessive because of the human body skin resistance.
Description of drawings
Fig. 1 is the real-time monitoring of this utility model skin resistance and the structured flowchart of feedback device; Fig. 2 is the real-time monitoring of this utility model skin resistance and the circuit theory diagrams of feedback device.
The specific embodiment
Be described in detail below in conjunction with the real-time monitoring and the feedback device of accompanying drawing to this utility model skin resistance: the real-time monitoring and the feedback device of this utility model skin resistance comprise microprocessor 1, the potentiometer 2 that links to each other with the outfan of microprocessor 1, the amplifier 3 that links to each other with the outfan of potentiometer 2, the transformator 4 that links to each other with the outfan of amplifier 3, the skin electrode 5 that links to each other with the outfan of transformator 4, the skin resistance testing circuit 6 that links to each other with the outfan of skin electrode 5, and the A/D converter 7 that links to each other with the output of skin resistance testing circuit 6, the output of described A/D converter 7 links to each other with microprocessor.
Described potentiometer 2 is selected the programmable digital potentiometer.
Described transformator 4 is selected audio-frequency transformer.
Described skin resistance testing circuit 6 comprises the circuit of three parallel connections altogether, article one, circuit comprises the placed in-line first diode D1, first capacitor C 1, second capacitor C 2, the second diode D2, wherein, the first diode D1 links to each other with power supply VCC, the second diode D2 links to each other with skin electrode 5, in addition, be connected with skin electrode E6 on the contact D between first capacitor C 1 and second capacitor C 2; The second circuit comprises placed in-line the 3rd capacitor C 3, resistance R 44, and the 4th capacitor C 4, and wherein, the 3rd electric capacity is connected on the power supply VCC, the 4th capacitor C 4 ground connection; Three-line comprises the first potentiometer R1, resistance R 2, the first audion Q1, the second audion Q2, resistance R 3, and the second potentiometer R4, wherein, the first potentiometer R1 is connected on the power supply VCC, the second potentiometer R4 ground connection, the base stage of the first audion Q1 is connected on the contact A between the 3rd capacitor C 3 and the resistance R 44, and the base stage of the second audion Q2 is connected on the contact B between resistance R 44 and the 4th capacitor C 4.
During use, skin resistance testing circuit 6 converts the resistance of detected skin to corresponding voltage value by skin electrode 5, and this magnitude of voltage is transferred to A/D converter 7, after A/D converter 7 receives this magnitude of voltage, convert thereof into corresponding digital signal, then, give microprocessor 1 with this digital data transmission, after microprocessor 1 receives this digital signal, it is handled the back potentiometer 2 is made control, after digital regulation resistance 2 receives control signal, change the resistance of its output resistance, then this resistance value is transferred to amplifier 3, after amplifier 3 receives this resistance value, change its amplification, and after the voice signal amplification to output in this device, export to skin electrode 5 after boosting by transformator 4, thus chafe.
Monitor constantly and feedback device by this utility model skin resistance, can monitor constantly the resistance of skin, when the resistance of skin hour, microprocessor 1 makes the resistance that inserts amplifier 3 change by transmitting control signal to potentiometer 2, thereby change the amplification of amplifier 3, thereby avoided too small, and made that the voltage be applied on the human body skin is excessive, thereby the injury that human body is caused because of the skin resistance resistance.
The above only is a kind of embodiment of the present utility model, it or not whole or unique embodiment, the conversion of any equivalence that those of ordinary skills take technical solutions of the utility model by reading this utility model description is claim of the present utility model and contains.
Claims (3)
1. the real-time monitoring and the feedback device of a skin resistance, it is characterized in that: comprise microprocessor (1), the potentiometer (2) that links to each other with the outfan of microprocessor (1), the amplifier (3) that links to each other with the outfan of potentiometer (2), the transformator (4) that links to each other with the outfan of amplifier (3), the skin electrode (5) that links to each other with the outfan of transformator (4), the skin resistance testing circuit (6) that links to each other with skin electrode (5), and the A/D converter (7) that links to each other with the output of skin resistance testing circuit, the outfan of described A/D converter (7) links to each other with the input of microprocessor (1).
2. the real-time monitoring and the feedback device of skin resistance as claimed in claim 1, it is characterized in that: described potentiometer (2) is selected from the programmable digital potentiometer.
3. the real-time monitoring and the feedback device of skin resistance as claimed in claim 1 or 2, it is characterized in that: described transformator (4) is selected from the audio-frequency electric depressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202311820U CN201734713U (en) | 2010-06-21 | 2010-06-21 | Skin resistance real-time monitoring and feedback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202311820U CN201734713U (en) | 2010-06-21 | 2010-06-21 | Skin resistance real-time monitoring and feedback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201734713U true CN201734713U (en) | 2011-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202311820U Expired - Fee Related CN201734713U (en) | 2010-06-21 | 2010-06-21 | Skin resistance real-time monitoring and feedback device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201734713U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512169A (en) * | 2011-12-31 | 2012-06-27 | 重庆邮电大学 | Adaptive control method and device for limit deviation in skin electrical signal testing |
| CN103385723A (en) * | 2012-05-09 | 2013-11-13 | 上海心仪电子科技有限公司 | Intelligent mirror drawing device |
| CN103385721A (en) * | 2012-05-09 | 2013-11-13 | 上海心仪电子科技有限公司 | Intelligent rod and frame testing device |
| CN103385720A (en) * | 2012-05-09 | 2013-11-13 | 上海心仪电子科技有限公司 | Intelligent skin resistance testing device |
| CN104873195A (en) * | 2015-06-19 | 2015-09-02 | 河南山之峰信息科技股份有限公司 | Human body resistance measuring device |
| CN105572017A (en) * | 2015-12-21 | 2016-05-11 | 深圳联开生物医疗科技有限公司 | Smart gain adjustment system and blood cell analyzer |
| CN113013833A (en) * | 2019-12-19 | 2021-06-22 | Oppo广东移动通信有限公司 | Equipment control method and related product |
-
2010
- 2010-06-21 CN CN2010202311820U patent/CN201734713U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512169A (en) * | 2011-12-31 | 2012-06-27 | 重庆邮电大学 | Adaptive control method and device for limit deviation in skin electrical signal testing |
| CN102512169B (en) * | 2011-12-31 | 2013-06-05 | 重庆邮电大学 | Adaptive control method and device for deviation in skin electrical signal testing |
| CN103385723A (en) * | 2012-05-09 | 2013-11-13 | 上海心仪电子科技有限公司 | Intelligent mirror drawing device |
| CN103385721A (en) * | 2012-05-09 | 2013-11-13 | 上海心仪电子科技有限公司 | Intelligent rod and frame testing device |
| CN103385720A (en) * | 2012-05-09 | 2013-11-13 | 上海心仪电子科技有限公司 | Intelligent skin resistance testing device |
| CN104873195A (en) * | 2015-06-19 | 2015-09-02 | 河南山之峰信息科技股份有限公司 | Human body resistance measuring device |
| CN105572017A (en) * | 2015-12-21 | 2016-05-11 | 深圳联开生物医疗科技有限公司 | Smart gain adjustment system and blood cell analyzer |
| CN105572017B (en) * | 2015-12-21 | 2018-07-06 | 深圳联开生物医疗科技有限公司 | A kind of Intelligent Gain regulating system and cellanalyzer |
| CN113013833A (en) * | 2019-12-19 | 2021-06-22 | Oppo广东移动通信有限公司 | Equipment control method and related product |
| CN113013833B (en) * | 2019-12-19 | 2022-06-07 | Oppo广东移动通信有限公司 | Equipment control method and related product |
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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: 20110209 Termination date: 20120621 |