CN102865884A - Non-contact sensor - Google Patents
Non-contact sensor Download PDFInfo
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- CN102865884A CN102865884A CN2012100766295A CN201210076629A CN102865884A CN 102865884 A CN102865884 A CN 102865884A CN 2012100766295 A CN2012100766295 A CN 2012100766295A CN 201210076629 A CN201210076629 A CN 201210076629A CN 102865884 A CN102865884 A CN 102865884A
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Abstract
The invention discloses a non-contact sensor which comprises a sensing lead, a first capacitor, a second capacitor, an inductor and a processor. The processor is provided with a first input end, a second input end, a third input end and an output switch connected with an external circuit, the first capacitor is electrically connected between the first input end and the second input end of the processor, a series branch formed by serially connecting the inductor with the second capacitor is electrically connected between the second input end and the third input end of the processor, one end of the sensing lead is electrically connected with the second input end of the processor, and the other end of the sensing lead is electrically connected with the third input end of the processor. Change of the number of electrons on the sensing lead due to approach or proximity of an external object is analyzed by the processor, is adjusted by a filter circuit consisting of the first capacitor, the inductor and the second capacitor and then is received by the processor, output state is controlled or changed according to the change of the number of the electrons, and non-contact sensing functions are realized.
Description
Technical field
The present invention relates to electronic technology field, relate in particular to a kind of non-contact sensor.
Background technology
Sensor is a kind of pick-up unit, can experience measured information, and the information that detection can be experienced, be for conversion into according to certain rules the information output of electric signal or other desired forms, with the requirements such as transmission, processing, storage, demonstration, record and control of satisfying information.It is the primary link of realizing automatically detection and automatic control.
Divide according to custom, often that sensor is comparable with five human large sense organs, be respectively: the light sensor corresponding with vision, with acoustic sensor corresponding to the sense of hearing, with chemical sensor corresponding to the sense of taste, with gas sensor corresponding to sense of smell and pressure-sensitive, temperature sensitive, the fluid sensor corresponding with sense of touch.These above-mentioned sensors need to be identified the special characteristic of sensing object, usually can be subject to the impact of magnetic field, light and static, and antijamming capability is not enough.
Summary of the invention
For the weak point that exists in the above-mentioned technology, the invention provides the good non-contact sensor of a kind of antijamming capability, can external object near or when pressing close to, realize the function of noncontact sensing.
For achieving the above object, the invention provides a kind of non-contact sensor, comprise sensor wire, the first electric capacity, the second electric capacity, inductance and processor, described processor has first input end, the second input end, the 3rd input end and the output switch that is connected connecting external circuit, and described the first electric capacity is electrically connected between the first input end and the second input end of described processor; The series arm that described inductance and the second capacitances in series form is electrically connected between second input end and the 3rd input end of processor; Described sensor wire one end is electrically connected with the second input end of processor, and its other end is electrically connected with the 3rd input end of processor.
Wherein, described non-contact sensor also comprises metallic conductor, and described metallic conductor is electrically connected with sensor wire.
Wherein, described sensor wire is one or more.
The invention has the beneficial effects as follows: compared with prior art, non-contact sensor provided by the invention, analyzing electron amount close because of external object on the sensor wire or that press close to cause by processor changes, after the filtering circuit that the first electric capacity, inductance and the second electric capacity form is adjusted, processor receives the changing value of this electron amount, according to extent control or the change output state that electron amount changes, realize the function of noncontact sensing.
Description of drawings
Fig. 1 is the circuit diagram of non-contact sensor of the present invention.
The main element symbol description is as follows:
10, sensor wire 11, the first electric capacity
12, the second electric capacity 13, inductance
14, processor 15, metallic conductor
A, first input end B, the second input end
C, the 3rd input end K, output switch
Embodiment
In order more clearly to explain the present invention, below in conjunction with accompanying drawing the present invention is done to describe further.
See also Fig. 1, a kind of non-contact sensor provided by the invention, comprise sensor wire 10, the first electric capacity 11, the second electric capacity 12, inductance 13 and processor 14, processor 14 has first input end A, the second input end B, the 3rd input end C and the output switch K that is connected connecting external circuit, and the first electric capacity 11 is electrically connected between the first input end A and the second input end B of processor 14; The series arm that inductance 13 and the second electric capacity 12 are composed in series is electrically connected between the second input end B and the 3rd input end C of processor 14; Sensor wire 10 1 ends are electrically connected with the second input end B of processor 14, and its other end is electrically connected with the 3rd input end C of processor 14, and the output switch of processor 14 is transported to output signal in the external circuit.
Situation compared to prior art, non-contact sensor provided by the invention, analyzing electron amount close because of external object on the sensor wire or that press close to cause by processor changes, after the filtering circuit that the first electric capacity, inductance and the second electric capacity form is adjusted, processor receives the changing value of this electron amount, control by output switch K or the change output state according to the degree that electron amount changes, realize the function of noncontact sensing.
In the present embodiment, above-mentioned non-contact sensor also comprises metallic conductor 15, and metallic conductor 15 is electrically connected with sensor wire 10.Be understandable that; the present invention is not limited to type, material, shape and the quantity of metallic conductor 15; so long as metallic conductor 15 and sensor wire 10 are electrically connected; strengthen the sensing capability of the electron amount variation of sensor wire 10; after processor 14 collections and analyzing, according to extent control or the change output state that electron amount changes, realize the embodiment of noncontact sensing function; all belong to simple deformation of the present invention or conversion, fall into protection scope of the present invention.
In the present embodiment, above-mentioned sensor wire 10 is one or more.Be understandable that; the present invention is not limited to type, material, shape and the quantity of sensor wire 10; so long as utilize the electron amount of sensor wire 10 to change; after processor 14 collection and analyzing; extent control or change output state according to the electron amount variation; realize the embodiment of noncontact sensing function, all belong to simple deformation of the present invention or conversion, fall into protection scope of the present invention.
Traditional sensor generally is by the conductive surface of inside circuit connection or by magnetic matchmaker sensing or light matchmaker sensing or static sensing etc. by the human body contact.The present invention is different from traditional sensor and is there is not exposed conductor, and is not affected by magnetic fields, not rung by the light shadow, is not subjected to electrostatic influence.Under the condition that insulate fully in the wire that can be connected by inside circuit or metallic conductor surface, even every the upper non-metallic objectsit is not a metal object that is as thin as very much several millimeters thick, such as: paper, cloth, plastics, glass, plank etc., equal energy is sensed and can play control or change output state.
Advantage of the present invention is: connect or connection metal sheet not by one or more wire, the wire that process processor Collection and analysis is connected or the electron amount on the sheet metal, by external object near or press close to and change or after the electron amount that loses acquires a certain degree, and then the state of control or change output, the function of realization noncontact sensing.
The range of application of non-contact sensor of the present invention has: non-contact level sensing, and the insulation soft-touch control, the object proximity inductive switch, the object occupied space is surveyed, robot neuron sensor-based system, human simulation or artificial animal dermoreaction system etc.
Above disclosed only be several specific embodiment of the present invention, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (3)
1. non-contact sensor, it is characterized in that, comprise sensor wire, the first electric capacity, the second electric capacity, inductance and processor, described processor has first input end, the second input end, the 3rd input end and the output switch that is connected connecting external circuit, and described the first electric capacity is electrically connected between the first input end and the second input end of described processor; The series arm that described inductance and the second capacitances in series form is electrically connected between second input end and the 3rd input end of processor; Described sensor wire one end is electrically connected with the second input end of processor, and its other end is electrically connected with the 3rd input end of processor.
2. non-contact sensor according to claim 1 is characterized in that, described non-contact sensor also comprises metallic conductor, and described metallic conductor is electrically connected with sensor wire.
3. non-contact sensor according to claim 1 and 2 is characterized in that, described sensor wire is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210076629.5A CN102865884B (en) | 2012-03-21 | 2012-03-21 | Non-contact sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210076629.5A CN102865884B (en) | 2012-03-21 | 2012-03-21 | Non-contact sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102865884A true CN102865884A (en) | 2013-01-09 |
| CN102865884B CN102865884B (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210076629.5A Expired - Fee Related CN102865884B (en) | 2012-03-21 | 2012-03-21 | Non-contact sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102865884B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536092A (en) * | 2018-06-30 | 2018-09-14 | 卡川尔流体科技(上海)有限公司 | A kind of novel intelligent start/stop structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002288615A (en) * | 2001-03-28 | 2002-10-04 | Matsushita Electric Ind Co Ltd | Non-contact ic card |
| KR20050120837A (en) * | 2004-06-21 | 2005-12-26 | 유건식 | Touch sensor |
| CN201016742Y (en) * | 2007-02-15 | 2008-02-06 | 浙江康泰电气有限公司 | Electronic displacement length metering device |
| CN101126622A (en) * | 2007-09-25 | 2008-02-20 | 深圳东方锅炉控制有限公司 | High temperature non-contact type eddy current displacement sensor |
| CN201222081Y (en) * | 2008-06-06 | 2009-04-15 | 中国科学院空间科学与应用研究中心 | Passive non-contact type surface potential probe |
| CN101593396A (en) * | 2009-06-29 | 2009-12-02 | 西安工程大学 | Biological theft-proof sensor for transmission line |
| CN202511805U (en) * | 2012-03-21 | 2012-10-31 | 李彤阳 | Non-contacting sensor |
-
2012
- 2012-03-21 CN CN201210076629.5A patent/CN102865884B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002288615A (en) * | 2001-03-28 | 2002-10-04 | Matsushita Electric Ind Co Ltd | Non-contact ic card |
| KR20050120837A (en) * | 2004-06-21 | 2005-12-26 | 유건식 | Touch sensor |
| CN201016742Y (en) * | 2007-02-15 | 2008-02-06 | 浙江康泰电气有限公司 | Electronic displacement length metering device |
| CN101126622A (en) * | 2007-09-25 | 2008-02-20 | 深圳东方锅炉控制有限公司 | High temperature non-contact type eddy current displacement sensor |
| CN201222081Y (en) * | 2008-06-06 | 2009-04-15 | 中国科学院空间科学与应用研究中心 | Passive non-contact type surface potential probe |
| CN101593396A (en) * | 2009-06-29 | 2009-12-02 | 西安工程大学 | Biological theft-proof sensor for transmission line |
| CN202511805U (en) * | 2012-03-21 | 2012-10-31 | 李彤阳 | Non-contacting sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536092A (en) * | 2018-06-30 | 2018-09-14 | 卡川尔流体科技(上海)有限公司 | A kind of novel intelligent start/stop structure |
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| Publication number | Publication date |
|---|---|
| CN102865884B (en) | 2015-02-04 |
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Granted publication date: 20150204 Termination date: 20190321 |