CN102865884B - Non-contact sensor - Google Patents
Non-contact sensor Download PDFInfo
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- CN102865884B CN102865884B CN201210076629.5A CN201210076629A CN102865884B CN 102865884 B CN102865884 B CN 102865884B CN 201210076629 A CN201210076629 A CN 201210076629A CN 102865884 B CN102865884 B CN 102865884B
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- electric capacity
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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, particularly relate to a kind of non-contact sensor.
Background technology
Sensor is a kind of pick-up unit, measured information can be experienced, and can the information experienced be detected, the information being for conversion into electric signal or other desired forms according to certain rules exports, to meet the requirements such as the transmission of information, process, storage, display, record and control.It is the primary link realizing automatically detecting and automatically controlling.
Divide according to custom, normal by comparable for the five large sense organs of sensor and the mankind, be respectively: the light sensor corresponding with vision, the acoustic sensor corresponding with the sense of hearing, the chemical sensor corresponding with the sense of taste, the gas sensor corresponding with sense of smell and pressure-sensitive, temperature sensitive, the fluid sensor corresponding with sense of touch.These above-mentioned sensors need to identify the special characteristic of sensing objects, usually can be subject to the impact of magnetic field, light and electrostatic, and antijamming capability is not enough.
Summary of the invention
For the weak point existed in above-mentioned technology, the invention provides the non-contact sensor that a kind of antijamming capability is good, 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 are electrically connected between the first input end of described processor and the second input end with the output switch for being connected external circuit, described first electric capacity; The series arm of described inductance and the second capacitances in series composition is electrically connected between the second input end of processor and the 3rd input end; 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, electron amount change that is close because of external object on sensor wire or that press close to cause is analyzed by processor, after the filtering circuit adjustment of the first electric capacity, inductance and the second electric capacity composition, processor receives the changing value of this electron amount, according to extent control or the change output state of electron amount change, realize the function of noncontact sensing.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of non-contact sensor of the present invention.
Main element symbol description is as follows:
10, sensor wire 11, 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 to more clearly state the present invention, below in conjunction with accompanying drawing, the present invention is further described.
Refer to Fig. 1, a kind of non-contact sensor provided by the invention, comprise sensor wire 10, first electric capacity 11, 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 is electrically connected between the first input end A of processor 14 and the second input end B with the output switch K for being connected external circuit, the first electric capacity 11; 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 of processor 14 and the 3rd input end C; Sensor wire 10 one end is 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 output signal is transported in external circuit by the output switch of processor 14.
Compared to the situation of prior art, non-contact sensor provided by the invention, electron amount change that is close because of external object on sensor wire or that press close to cause is analyzed by processor, after the filtering circuit adjustment of the first electric capacity, inductance and the second electric capacity composition, processor receives the changing value of this electron amount, degree according to electron amount change to be controlled by output switch K or to change output state, realizes 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 the type of metallic conductor 15, material, shape and quantity; as long as metallic conductor 15 and sensor wire 10 are electrically connected; strengthen the sensing capability of the electron amount change of sensor wire 10; after gathering for processor 14 and analyze, according to extent control or the change output state of electron amount change, 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 the type of sensor wire 10, material, shape and quantity; as long as utilize the electron amount of sensor wire 10 to change; after gathering for processor 14 and analyze; according to extent control or the change output state of electron amount change; 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 is generally the conductive surface that connected by inside circuit by human contact or by magnetic matchmaker sensing or light matchmaker sensing or electrostatic sensing etc.The present invention is different from traditional sensor and is do not have exposed conductor, not affected by magnetic fields, and light shadow does not ring, not by electrostatic influence.Under the condition insulated completely 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 being as thin as very much a few millimeters thick, such as: paper, cloth, plastics, glass, plank etc., all can be sensed and can play and control or change output state.
Advantage of the present invention is: connected by one or more wire or not connection metal sheet, electron amount on the wire be connected through processor Collection and analysis or sheet metal, by external object near or press close to and to change or after the electron amount that loses acquires a certain degree, and then control or change the state exported, realize the function of noncontact sensing.
The range of application of non-contact sensor of the present invention has: non-contact level sensing, insulation soft-touch control, object proximity inductive switch, and object occupied space detects, robot neuron sensor-based system, human simulation or artificial animal dermoreaction system etc.
Be only several specific embodiment of the present invention above, 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 (1)
1. a 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 are electrically connected between the first input end of described processor and the second input end with the output switch for being connected external circuit, described first electric capacity; The series arm of described inductance and the second capacitances in series composition is electrically connected between the second input end of processor and the 3rd input end; 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; Described non-contact sensor also comprises metallic conductor, and described metallic conductor is electrically connected with sensor wire; Described sensor wire is one or more; Electron amount change that is close because of external object on sensor wire or that press close to cause is analyzed by processor, after the filtering circuit adjustment of the first electric capacity, inductance and the second electric capacity composition, processor receives the changing value of this electron amount, according to extent control or the change output state of electron amount change, realize the function of noncontact sensing.
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 CN102865884A (en) | 2013-01-09 |
| CN102865884B true CN102865884B (en) | 2015-02-04 |
Family
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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) |
Families Citing this family (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 |
Family Cites Families (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 |
| KR100621822B1 (en) * | 2004-06-21 | 2006-09-20 | 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 |
| CN101593396B (en) * | 2009-06-29 | 2012-08-29 | 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 |
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2012
- 2012-03-21 CN CN201210076629.5A patent/CN102865884B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102865884A (en) | 2013-01-09 |
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Granted publication date: 20150204 Termination date: 20190321 |