CN201779347U - Opening amplitude indicator - Google Patents
Opening amplitude indicator Download PDFInfo
- Publication number
- CN201779347U CN201779347U CN2010205439050U CN201020543905U CN201779347U CN 201779347 U CN201779347 U CN 201779347U CN 2010205439050 U CN2010205439050 U CN 2010205439050U CN 201020543905 U CN201020543905 U CN 201020543905U CN 201779347 U CN201779347 U CN 201779347U
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- Prior art keywords
- indicator
- opening
- photoelectric sensor
- sensor
- opening amplitude
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Abstract
The utility model provides a detection device which is used for detecting and indicating the opening amplitude of a valve and has higher resolution ratio, and particularly relates to an opening amplitude indicator. The opening amplitude indicator is characterized in that a control display and a measurer are mainly included and connected with each other through a cable, wherein a master controller and a display device are arranged inside the control display, the measurer includes an LED matrix and a photoelectric sensor corresponding to the LED matrix, a perforated baffle controlled by the master controller is arranged in the middle of the measurer, and the cable includes data wires and common wires. The utility model well solves the defects of the conventional opening amplitude indicator such as unreliable detection and short service life under a vibrating environment, and uses the common photoelectric sensor to improve the resolution ratio of relevant devices and save the cost.
Description
Technical field
The utility model relates to valving, relates in particular to a kind of indicator of opening that detects and indicate the valve opening amplitude.
Background technique
Because when water pump is opened, water pump can drive valve vibration, so linear potentiometer sensor commonly used, all can not work reliably based on the electro-optical pickoff of relative value detection.
Existing aperture indication reality is exactly the displacement that needs indication valve push rod, the indication of displacement just.The method that detects displacement is a lot: as laser sensor, the precise grating chi, synchronous induction ruler, these instruments often adopt in high-precision measurement, resolution can reach 0.01 millimeter or higher, but price height, environment is also required height, the general indicator of opening that uses is mainly rotating coder, it can convert straight-line displacement to angle of swing through rack gear arrangement, rotating coder can higher accuracy detection go out the angle variation, but there is glass component rotating coder inside, resistance to shock is bad, be not suitable for when water pump is opened using, and the method for above introduction all can only react relative position, can't detect for the displacement that when indicator is not switched on, produces, detect the displacement when indicator is not switched on if desired, must use can react the sensor of absolute position.
And in general, the existing sensor that can react the absolute position that adopts, be mainly the resistance type displacement transducer, this is a kind of sensor of contact-type, the output analogue signal, and testing precision is relevant with circuit design, can at any time reflect the absolute position, but owing to be contact-type, frequent move or vibration environment in lost efficacy easily when using, the life-span is limited.
The model utility content
The technical problem that the utility model solved is to provide a kind of indicator of opening, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solved realizes by the following technical solutions:
Indicator of opening, mainly comprise a control display device and a measuring appliance, middle by elastic cable paper connection, wherein said control display interior comprises a main controller and a display unit, described measuring appliance is formed by a light emitting diode matrix with its corresponding photoelectric sensor, there is a baffle plate with holes by main controller control the centre, and described elastic cable paper is made up of datawire and power line.
Utilize light curtain principle, utilize a light emitting diode matrix to carry out position determination: to send the parallel IR of a row by the infrarede emitting diode row with the photoelectric sensor that is displayed in the light emitting diode opposite, photoelectric sensor by the opposite receives, when object stops in emission and between receiving, the photoelectric sensor of relevant position can't receive optical signal, thereby can determine the absolute position of testee.
Yet, in the utility model, because ray density has determined the resolution of displacement detecting.Be that resolution is subjected to infrarede emitting diode to be listed as the influence of the IR density of sending, the width of infrared electro groove crack commonly used device is 6mm, the spacing minimum that is to say IR also must be greater than 6mm, this will seriously limit the use of this sensor, therefore on the position probing plate washer of infrarede emitting diode row and photoelectric sensor, increase has some apertures, the lower end does not have the long and porose upper end part of bore portion outline, utilize article one IR that computer on slice just can matching program be blocked the below graduation of whole numbers of units as the position, the position probing that resolution requirement is higher can be realized with bigger light spacing like this as the decimal part of position probing in the position in the hole that the top is not blocked.
Sensor section adopts single-chip microcomputer as main controller, single-chip microcomputer connects photoelectric sensor and control and keeps photoelectric sensor to be operated in scanning mode, the infraluminescence pipe connects by matrix-style commonly used, the positive-negative input end of Single-chip Controlling infraluminescence pipe, when a high electricity frequency of output, when the electricity frequency is hanged down in an output, the infraluminescence pipe is luminous, single-chip microcomputer then detects photo-sensor signal will, to determine whether corresponding IR is blocked, and then detect next light in the same way and whether lived by shelves, all detect up to all light and finish.Single-chip microcomputer reads and calculates the absolute position of the middle plate washer of light in conjunction with the method that improves resolution herein.
Sensor to position signal be sent to Displaying Meter with binary data format by the RS485 data/address bus, Displaying Meter is converted into the valve opening of representing with percentage according to user's requirement again, and shows.The RS485 bus also can be connected to computer simultaneously simultaneously, and the aperture data just can show synchronously on computers like this.
Beneficial effect:
The utility model adopts absolute value position probing principle based on infrared photoelectric sensor, solve indicator of opening well and in vibration environment, detected shortcoming unreliable or that the life-span is not long, utilize the normal optical electric transducer to improve the method for resolution simultaneously, when not raising the cost, improved testing precision.
Description of drawings
Fig. 1 is the schematic representation of the utility model preferred embodiment;
Fig. 2 is an absolute value optoelectronic position device schematic representation of the present utility model;
Fig. 3 is the utility model high resolution sensor schematic representation one;
Fig. 4 is the utility model high resolution sensor schematic representation two.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Schematic representation referring to the preferred embodiment of the indicator of opening of Fig. 1 comprises control display device 1 and measuring appliance 3, and the middle elastic cable paper of forming with datawire and common wiring 2 is connected.
Absolute value optoelectronic position device schematic representation of the present utility model referring to Fig. 2, one light emitting diode matrix 4 is wherein arranged on measuring appliance 3, there is the photoelectric sensor 7 of a correspondence on light emitting diode matrix 4 opposites, during work, light emitting diode matrix 4 sends a series of detection light beams 6, testee 5 blocked and detects light beam 6 when corresponding testee 5 was arranged in the middle of detecting light beam 6, can be at the coherent signal point of photoelectric sensor 7 down auxiliary, obtain the position information of testee 5, and show by control display device 1 through converting.
In using process of the present utility model, need the resolution of raising system.
In the embodiment one shown in the high resolution sensor of Fig. 3, the resolution of sensor is 2mm, the left side is a light emitting diode matrix 4, the right side is a photoelectric sensor 7, the spacing that detects light beam 6 is 10mm, middle plate washer 8 upper ends have the penetrating hole 9 of 4 wide 2mm, its spacing is 8mm, there is long imperforate section plate washer 8 lower ends, article one that begin from the below this moment detects light beam 6 and is blocked, and the unit of account of expression 10mm is 0, and the 3rd that makes progress is detected light beam 6 and pass through again, an expression position counting is 2, represents that promptly displacement is 2*2=4mm.
In the embodiment two shown in the high resolution sensor of Fig. 4, article one that one-chip computer matching program in the control display device 1 is blocked the below detects the graduation of whole numbers of units (digit be 10mm) of light beam 6 as the position, make progress the state of continuous 4 light as a position counting of position, with 2mm is that unit carries out moving on the vertical direction, present embodiment is the schematic representation after embodiment one moves 2mm, with the principle among the embodiment one, displacement is 6mm, like this, just with spacing be the resolution that the light of 10mm has been realized 2mm.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. indicator of opening, it is characterized in that: mainly comprise a control display device and a measuring appliance, middle by elastic cable paper connection, wherein said control display interior comprises a main controller and a display unit, described measuring appliance is formed by a light emitting diode matrix with its corresponding photoelectric sensor, there is a baffle plate with a plurality of holes by main controller control the centre, and described elastic cable paper is made up of datawire and power line.
2. indicator of opening according to claim 1 is characterized in that, described baffle plate upper end has some apertures, and the lower end does not have the bore portion outline and is longer than porose upper end part, and aperture pitch is slightly less than the light spacing.
3. indicator of opening according to claim 1 is characterized in that, described main controller is a single-chip microcomputer, and single-chip microcomputer connects photoelectric sensor and controls output interface.
4. indicator of opening according to claim 1 is characterized in that, sensor to position signal be sent to Displaying Meter with binary data format by the RS485 data/address bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205439050U CN201779347U (en) | 2010-09-27 | 2010-09-27 | Opening amplitude indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205439050U CN201779347U (en) | 2010-09-27 | 2010-09-27 | Opening amplitude indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779347U true CN201779347U (en) | 2011-03-30 |
Family
ID=43792558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205439050U Expired - Fee Related CN201779347U (en) | 2010-09-27 | 2010-09-27 | Opening amplitude indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003571A (en) * | 2010-09-27 | 2011-04-06 | 中南林业科技大学 | Aperture indicator |
-
2010
- 2010-09-27 CN CN2010205439050U patent/CN201779347U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003571A (en) * | 2010-09-27 | 2011-04-06 | 中南林业科技大学 | Aperture indicator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20110927 |
|
| C17 | Cessation of patent right |