CN201789484U - Signal measuring switch - Google Patents
Signal measuring switch Download PDFInfo
- Publication number
- CN201789484U CN201789484U CN2010202055735U CN201020205573U CN201789484U CN 201789484 U CN201789484 U CN 201789484U CN 2010202055735 U CN2010202055735 U CN 2010202055735U CN 201020205573 U CN201020205573 U CN 201020205573U CN 201789484 U CN201789484 U CN 201789484U
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- Prior art keywords
- switch
- joint
- signal
- mechanical portion
- contact
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- Expired - Fee Related
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model relates to a signal measuring switch, which is provided with three joints. The first joint and the second joint are respectively connected onto a positive joint and a negative joint of a power source, and the second joint and the third joint are switch signal output ends. The measuring switch is mounted at an objective position of a mechanical portion with action signals required to be measured, the mechanical portion is required to be provided with a metal portion and provided with iron preferably, when the mechanical portion moves to the objective position, a measuring signal detects the mechanical portion, and an object in-place switch signal can be transmitted to a control system, such that the mechanical portion implements next action.
Description
Technical field
The utility model relates to protective device, relates in particular to a kind of protective device that is used near switch.
Background technology
In all kinds of switches, have a kind of to element---the displacement transducer of " perception " ability is arranged near its object.Utilize displacement transducer that the sensitivity characteristic near object is reached the purpose of control switch on-off, Here it is near switch.Claim static position switch again near switch; it is except that can finishing Stroke Control and position limitation protection; or a kind of checkout gear of non-contact type; as detecting accessory size and testing the speed etc., also can be used for the automatic linking of frequency conversion counter, variable-frequency pulse generator, level control and procedure etc.Characteristics have reliable operation, long, low in energy consumption, multiple positioning accuracy height of life-span, frequency of operation is high and adapt to bad working environment etc.
Shift near switch as object, and when being close to certain distance, displacement transducer just has " perception ", switch just can move.Usually cry " detecting distance " this distance.Different detects also difference of distance near switch.
Sometimes tested test object is by certain time interval, shifts to one by one near switch, and another ground leaves, and so constantly repeats.Different from switch, be different to the responding ability of detected object.This response characteristic is called as " response frequency ".
Development along with modern manufacturing industry, automaticity is more and more higher, and the action of machinery need follow the prescribed order, then next action is finished in an action again, so each action is finished and is just needed a signal of finishing, do next action and can not observe, like that just greatly reduce production efficiency by the producer.Can therefore provide a kind of signal measurement switch of finishing signal monitoring automatically be the technical problem that the prior art personnel seek assiduously and solved.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of signal measurement switch is provided, and this switch has solved in the modern manufacturing production process mechanical action and finished problem of signal detection.This apparatus structure is simple, and stable performance is easy to install, and applicability is wide.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of signal measurement switch is provided with three contacts, and described first contact and second contact are connected respectively on the positive and negative contact of power supply, and described second, third contact is the switching signal output.
Further, be provided with an oscillating circuit that can produce a high frequency magnetic field in the described signal measurement switch.
The effect of this patent is:
All be widely used in aviation, Aeronautics and Astronautics technology and industrial production near switch.In daily life, as the automatically-controlled door in hotel, restaurant, garage, application is arranged all on the automatic hot-air machine.Aspect safe antitheft,, the anti-theft device of being made up of near switch various usually is housed all as important places such as profile, financial accounting, finance, museum, national treasuries.In measuring technique, as length, the measurement of position; In control technology,, also all using a large amount of near switch as the measurement and the control of displacement, speed, acceleration.
This patent is provided with a kind of signal measurement switch, this measuring switch is installed on the target location of the mechanical part that needs the measurement actuating signal, this mechanical part needs the metal part, iron preferably, when this mechanical part moves to the target location, this measuring-signal detects this mechanical part, will send the switching signal that target puts in place to control system, so that machinery is proceeded next action.
The operation principle of this signal measurement switch is that an oscillating circuit is arranged in this device, and the line L in the oscillating circuit produces a high frequency magnetic field.When object during near magnetic field, because electromagnetic induction produces an induced current (vortex flow) in object.Along with the object proximity transducer, induced current strengthens, and causes that the load in the oscillating circuit strengthens.Then, vibration weakens until stopping.Transducer utilizes amplitude detecting circuit to detect the variation of oscillatory regime and output detection signal.The degree of amplitude variations is difference with the difference of object metal species, and also the kind with the object metal is different and different therefore to detect distance.
This device solves in the modern manufacturing production process mechanical action finish problem of signal detection.This apparatus structure is simple, and stable performance is easy to install, and applicability is wide, and high performance price ratio is arranged.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified;
Fig. 1 is a structural representation of the present utility model;
Embodiment
As Fig. 1 is structural representation of the present utility model, and a kind of signal measurement switch is provided with three contacts, and described first contact 1 and second contact 2 are connected respectively on the positive and negative contact of power supply, and described second contact 2, the 3rd contact 3 are the switching signal output.Be provided with an oscillating circuit that can produce a high frequency magnetic field in the described signal measurement switch.
Selection points for attention near switch:, all select capacitive approach switch usually for use in general industrial production place.Because it is this lower to the environment requirement condition near switch.If the object of surveying is nonmetal (or metal), liquid level, powder height, plastics, tobacco etc.Then select capacitive approach switch for use.The response frequency of this switch is low, but good stability.
Which kind of no matter selects for use near switch, all should note requirement every indexs such as operating voltage, load current, response frequency, detection distances.
Those skilled in the art will recognize that, above-mentioned embodiment is exemplary, be in order to make everybody can better understand this patent content, should not be construed as is restriction to this patent, be equal to change so long as disclose any that spirit done, all fall into this patent scope according to this patent.
Claims (2)
1. a signal measurement switch is provided with three contacts, it is characterized in that: described first contact and second contact are connected respectively on the positive and negative contact of power supply, and described second, third contact is the switching signal output.
2. signal measurement switch according to claim 1 is characterized in that: be provided with an oscillating circuit that can produce a high frequency magnetic field in the described signal measurement switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202055735U CN201789484U (en) | 2010-05-27 | 2010-05-27 | Signal measuring switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202055735U CN201789484U (en) | 2010-05-27 | 2010-05-27 | Signal measuring switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789484U true CN201789484U (en) | 2011-04-06 |
Family
ID=43821433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202055735U Expired - Fee Related CN201789484U (en) | 2010-05-27 | 2010-05-27 | Signal measuring switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789484U (en) |
-
2010
- 2010-05-27 CN CN2010202055735U patent/CN201789484U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU SUZHU INDUSTRIAL CONTROL ENGINEERING RESEAR Free format text: FORMER NAME: SUZHOU NEW TOGETHER INDUSTRIAL CONTROL ENGINEERING TECHNOLOGY RESEARCH CENTER CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 215000 workshop No. 1, Shishan industrial corridor, No. 855, Zhujianglu Road hi tech Zone, Jiangsu, Suzhou Patentee after: SUZHOU SUZHU INDUSTRIAL CONTROL ENGINEERING TECHNOLOGY RESEARCH CENTER CO., LTD. Address before: 215000 Suzhou high tech Zone, Jiangsu, Zhujianglu Road No. 508-4 Patentee before: Suzhou Xinxieli Industry Control Engineering Technology Research Center Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20150527 |
|
| EXPY | Termination of patent right or utility model |