CN1445796A - Optical type potentiometer - Google Patents
Optical type potentiometer Download PDFInfo
- Publication number
- CN1445796A CN1445796A CN 02107538 CN02107538A CN1445796A CN 1445796 A CN1445796 A CN 1445796A CN 02107538 CN02107538 CN 02107538 CN 02107538 A CN02107538 A CN 02107538A CN 1445796 A CN1445796 A CN 1445796A
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- CN
- China
- Prior art keywords
- light wave
- potentiometer
- photosensitive detector
- reflection unit
- optical type
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- Adjustable Resistors (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
An optical potentiometer mainly consists of a special circuit board and a movable reflector moving to left or right above the said special circuit board containing light emitter, light receiver, amplifier, filter, memory for storing a predefined reference, controller and digitalized variable resistor. The light beam from the said light emitter is reflected to the light receiver by the said movable reflector. After amplifier and filtered, the light beam is compared with the said reference to calculate the actual displacement. After compared with a standard displacement in the controller, it is used to drive a digitalized variable resistor to obtain a preper resistance value corresponding to the displacement.
Description
Technical field
The present invention relates to a kind of optical type potentiometer, especially refer to a kind of mode that can be by optics control recording certain amount of movement of the set packaged type reflection unit of this optics potentiometer, so drive ad hoc digital variable resistance with export its novel optical type potentiometer of corresponding resistance value.
Background technology
Present common variable resistor or potentiometer, exhausted major part are to utilize to be in contact with one another function to export corresponding resistance value between set folding mover of sliding bar and carbon resistance relative position.No doubt existing variable resistor of this kind or potentiometer are by a large amount of uses of industry institute, and also used one very long period, but because necessary frictional engagement mutually between set folding mover of its sliding bar and carbon resistance, so it is except meeting badly influences the useful life of this variable resistor or potentiometer, it also can't provide the resistance value that has accuracy; Even the friction phenomenon between set folding mover of this sliding bar and carbon resistance, also can make electronic equipment produce very big clutter, so industry on quality and accuracy require to heal strict existing electronics technology, the problem how to address the above problem is to be paid attention to by the electronics industry gradually.
Summary of the invention
Main purpose of the present invention provides a kind of optical type potentiometer, and it can reach and order about the effect that a digital variable resistance makes its corresponding accurate resistance value of institute of output.
Secondary objective of the present invention provides a kind of optical type potentiometer, and it can reach and reduce the electronic installation clutter and effectively improve the potentiometer effect in useful life.
In order to achieve the above object, the invention provides a kind of optical type potentiometer, mainly be by a special circuit plate, one can about stable packaged type reflection unit and one group of outer upper shield that is displaced into this special circuit plate top constitute, this special circuit plate, except being embedded respectively a left side piece and the right interblock, its left side, the right-hand member appropriate location also is respectively equipped with a left margin photosensitive detector and right margin photosensitive detector, in addition the appropriate location, the outside of this left margin photosensitive detector is provided with the light wave reflector that can launch suitable light wave towards this right margin photosensitive detector direction, and the side of this light wave reflector is provided with a test point light wave receiver; And this light wave reflector is driven operation by IR emission driver, and the appropriate location, below of this special circuit plate is provided with one and exports socket in addition, for the output of this optical type potentiometer resistance value or the correction and the input of other necessary data; This packaged type reflection unit, can be constituted by the movable block of horizontal move left and right on this left side piece and the right interblock set two corresponding cross bars by one, this movable block is bent into the push-and-pull plectrum of 1 shape except just being provided with one thereon, its appropriate location, bottom also is provided with a light wave reflecting plate that just in time can be positioned at this left margin photosensitive detector and right margin photosensitive detector top, when making this packaged type reflection unit be moved into this left margin photosensitive detector or right margin photosensitive detector place, can be by the light wave reflection receiving function of this left margin photosensitive detector or right margin photosensitive detector, to reach minimum amount of movement or the maximum amount of movement that defines this packaged type reflection unit; This packaged type reflection unit then is provided with a reflecting optics towards a side of this light wave reflector in addition, reflexes to this test point light wave receiver place with the light wave w that this light wave reflector is launched; Should then be formed by outer upper shield by a base and a top cover, wherein this base is except having a bottom surface, the left border of this bottom surface and upwards vertical bending are upright side, this upright side vertically bends towards the right side and is the half side end face parallel with this bottom surface in addition, make this base be able to be nested with the outside at this assembling optical type potentiometer by the mode of vertically being inserted in, in addition the external end edge place of this half side end face is set as the step structure of downward bending, this step structure is overlapped be inserted in the below of this 1 shape push-and-pull plectrum to be located; This top cover then is to be set in from top to bottom on this optical type potentiometer that is arranged with base, on this top cover and be provided with one and can move therebetween open slot for this push-and-pull plectrum; So when the light wave w that should elder generation's wave launcher be launched when the set reflecting optics of this packaged type reflection unit reflexed to this test point light wave receiver place, this light wave w can borrow this special circuit plate; Amplifier that other establishes and filter are amplified and filtering, cooperate simultaneously and be set in advance in the reference value of establishing the memory place in addition, can be by a controller of establishing in addition to calculate the actual amount of movement of this packaged type reflection unit, and then by with the comparison that is pre-set in standard amount of movement in this controller, with reach order about one establish in addition digital variable resistance make output one proper resistor value corresponding to this amount of movement.
Advantage of the present invention is: the present invention by one can about the stable packaged type reflection unit that moves, make the light wave that a light wave reflector is launched reflex to the test point light wave receiver place of this light wave reflector side, and then the comparison by preestablishing the standard amount of movement is ordered about the effect that a digital variable resistance makes its corresponding accurate resistance value of institute of output to detect the actual amount of movement of this packaged type reflection unit, can reach.In addition, the present invention has exempted the friction phenomenon that utilizes between folding mover and carbon resistance by the operation of optical principle, and then reaches reduction electronic installation clutter and effectively improve the potentiometer effect structure in useful life.
Description of drawings
The present invention is described in detail below in conjunction with drawings and Examples:
Fig. 1 is the stereochemical structure explosive view of optical type potentiometer that the present invention discloses;
Figure 1A is the inversion figure of packaged type reflection unit;
Fig. 2 is that optical type potentiometer that the present invention discloses does not install the overcoat structure chart in when lid as yet;
Fig. 3 is first assembly drawing of optical type potentiometer that the present invention discloses when carrying out the assembling of outer upper shield;
Fig. 4 is the three-dimensional structure diagram after optical type potentiometer that the present invention discloses is loaded onto outer upper shield;
Fig. 5 is the horizontal section schematic diagram of optical type potentiometer that the present invention discloses;
Fig. 6 is the first work schematic diagram of optical type potentiometer that the present invention discloses;
Fig. 7 is the second work schematic diagram of optical type potentiometer that the present invention discloses;
Fig. 8 is the circuit block diagram of optical type potentiometer that the present invention discloses.
Symbol description among the figure:
10 special circuit plates, 11 left side pieces
12 the right piece left margin 13 photosensitive detectors
14 right margin photosensitive detectors, 15 light wave reflectors
16 test point light wave receivers, 17 IR launch driver
18 fault display lamps, 19 amplifiers
20 filters, 21 memories
22 controllers
30 digital variable resistance
40 outer upper shield 41 bases
412 upright sides, 411 bottom surfaces
413 half side end face 414 step structures
42 top covers, 421 open slots
422 holes, 423 openings
50 packaged type reflection units, 51,52 cross bars
53 movable blocks, 54 push-and-pull plectrums
55 light wave reflecting plates, 56 reflecting optics
60 sockets
The w light wave
Embodiment
See also Fig. 1 to shown in Figure 4, the disclosed optical type potentiometer of the present invention mainly be by a special circuit plate 10 and one can about the stable packaged type reflection unit 50 that is displaced into these special circuit plate 10 tops constituted, wherein this special circuit plate 10 is except being embedded respectively 12 of a left side piece 11 and the right pieces, its left side, the right-hand member appropriate position is respectively equipped with a left margin photosensitive detector 13 and right margin photosensitive detector 14, in addition the appropriate location, the outside of this left margin photosensitive detector 13 is provided with the light wave reflector 15 that can launch suitable light wave towards these right margin photosensitive detector 14 directions, and the side of this light wave reflector 15 also is provided with a test point light wave receiver 16; This light wave reflector 15 is then driven operation by IR emission driver 17.The outside of this light wave reflector 15 then is provided with a fault display lamp 18 in addition.
This packaged type reflection unit 50 can be constituted by the movable block 53 of horizontal move left and right on this left side piece 11 and 12 set two corresponding cross bars 51 of the right piece and 52 by one, this movable block 53 is bent into the push-and-pull plectrum 54 of 1 shape except square thereon place is provided with one, its appropriate position, bottom also is provided with a light wave reflecting plate 55 that just in time can be positioned at this left margin photosensitive detector 12 and right margin photosensitive detector 14 tops, promptly shown in Figure 1A, make this packaged type reflection unit 50 be moved into this left margin photosensitive detector 13 or right margin photosensitive detector 14 (promptly as shown in Figure 7) when locating, can be by the light wave reflection receiving function of this left margin photosensitive detector 13 or right margin photosensitive detector 14, to reach minimum amount of movement or the maximum amount of movement that defines this packaged type reflection unit 50.That is to say, when this light wave reflecting plate 55 just in time was moved to the top of this left margin photosensitive detector 13, this left margin photosensitive detector 13 promptly can be made the judgement that this packaged type reflection unit 50 has been moved into minimum amount of movement position because of the light wave reflection receiving function that it had; Otherwise, when this light wave reflecting plate 55 was moved to the top of this right margin photosensitive detector 14, this right margin photosensitive detector 14 promptly can be made the judgement that this packaged type reflection unit 50 has been moved into maximum amount of movement position because of the light wave reflection receiving function that it had.
This packaged type reflection unit 50 then is provided with a reflecting optics 56 towards a side of this light wave reflector 15 in addition, reflexes to this test point light wave receiver 16 places with the light wave w that this light wave reflector 15 is launched, promptly as shown in Figure 6.So when the light wave w that these test point light wave receiver 16 places are received is amplified and filtering by an amplifier 19 and a filter 20 of being located at these special circuit plate 10 appropriate positions in addition, and by the reference value that preestablishes and be stored in memory 21 places, the controller 22 that can establish by other is to calculate the actual amount of movement of this packaged type reflection unit 50, and then by with the comparison that is pre-set in standard amount of movement in this controller 22, can reach and order about a digital variable resistance 30 of establishing in addition to be output in pairing resistance value under this amount of movement.Relevant above-mentioned working procedure sees also circuit block diagram of the present invention shown in Figure 8.
In addition, in this Fig. 2 to Fig. 4, people find out that when knowing the present invention also comprises one group of outer upper shield 40 of being made up of base 41 and top cover 42.
Wherein this base 41 is except having a bottom surface 411, the also upwards vertical bending of the left border of this bottom surface is a upright side 412, in addition this upright side 412 vertically bends towards the right side and is a half side end face 413 parallel with this bottom surface 412, make this base 41 be able to be nested with in the outside of this assembling optical type potentiometer, promptly as shown in Figure 3 by the mode of vertically being inserted in.In this Fig. 3, people be when can knowing that the external end edge place that finds out this half side end face 413 is set as the step structure 414 of downward bending, this step structure 414 are overlapped be inserted in the place, below of this 1 shape push-and-pull plectrum 54.Be set on the optical type potentiometer of this assembling when this base 41 after, people can be nested with this top cover 42 in its outside, in addition this top cover 42 also is provided with one and can moves therebetween open slot 421 for this push-and-pull plectrum 54, because the ora terminalis of this open slot 421 just in time is set at the upper end of this step structure 414, promptly as shown in Figure 5, so the present invention can effectively avoid the light in the outside directly to inject its inboard, and then reaches the use effect of effectively guaranteeing this optical type potentiometer.In addition, the appropriate location of this top cover 42 is provided with one can supply these fault display lamp 18 outwardly directed holes 422, so that the failure warning function of this optical type potentiometer to be provided.
According to top described, then when this packaged type reflection unit 50 was moved into maximum amount of movement place, this optical type potentiometer promptly can be exported the design maximum resistance value that this potentiometer is allowed; Otherwise when this packaged type reflection unit 50 was moved into minimum amount of movement place, this optical type potentiometer promptly can be exported the minimal design resistance value that this potentiometer is allowed.
In addition, the appropriate position, below of this special circuit plate 10 also is provided with an output and goes into socket 60, this is exported into socket 60 except corresponding with the set opening 423 of this top cover 42, for plugging with outside the output of carrying out this optical type potentiometer function of suitable peripheral hardware plug (not shown), it also can provide the positive set-up function of nuclear of this optical type potentiometer.
In sum, because the disclosed optical type potentiometer of the present invention is the effect that directly reaches the corresponding resistance value of output in the mode of optics operation, so it is except the absolute accuracy that can guarantee output resistance, it more can borrow friction phenomenon to obtain the function of corresponding resistance value because of not utilizing between folding mover and carbon resistance, reach the effect of effective reduction potentiometer clutter, also improve the useful life of potentiometer simultaneously greatly, so the disclosed optical type potentiometer of the present invention is the value that meets fully on the industry, in addition because of present on the market and look into the device of no identical or similar techniques structure, and the present invention also non-simple mechanical structure can reach, so the present invention has been the requirement that meets patent of invention, special proposition patent application.
Claims (3)
1. optical type potentiometer, mainly be by a special circuit plate, one can about stable packaged type reflection unit and one group of outer upper shield that is displaced into this special circuit plate top constituted, it is characterized in that:
This special circuit plate, except being embedded respectively a left side piece and the right interblock, its left and right end appropriate location also is respectively equipped with a left margin photosensitive detector and right margin photosensitive detector, in addition the appropriate location, the outside of this left margin photosensitive detector is provided with the light wave reflector that can launch suitable light wave towards this right margin photosensitive detector direction, and the side of this light wave reflector is provided with a test point light wave receiver; And this light wave reflector is driven operation by IR emission driver, and the appropriate location, below of this special circuit plate is provided with one and exports socket in addition, for the output of this optical type potentiometer resistance value or the correction and the input of other necessary data;
This packaged type reflection unit, can be constituted by the movable block of horizontal move left and right on this left side piece and the right interblock set two corresponding cross bars by one, this movable block is bent into the push-and-pull plectrum of 1 shape except just being provided with one thereon, its appropriate location, bottom also is provided with a light wave reflecting plate that just in time can be positioned at this left margin photosensitive detector and right margin photosensitive detector top, when making this packaged type reflection unit be moved into this left margin photosensitive detector or right margin photosensitive detector place, can be by the light wave reflection receiving function of this left margin photosensitive detector or right margin photosensitive detector, to reach minimum amount of movement or the maximum amount of movement that defines this packaged type reflection unit; This packaged type reflection unit then is provided with a reflecting optics towards a side of this light wave reflector in addition, reflexes to this test point light wave receiver place with the light wave w that this light wave reflector is launched;
Should then be formed by outer upper shield by a base and a top cover, wherein this base is except having a bottom surface, the left border of this bottom surface and upwards vertical bending are upright side, this upright side vertically bends towards the right side and is the half side end face parallel with this bottom surface in addition, make this base be able to be nested with the outside at this assembling optical type potentiometer by the mode of vertically being inserted in, in addition the external end edge place of this half side end face is set as the step structure of downward bending, this step structure is overlapped be inserted in the below of this 1 shape push-and-pull plectrum to be located; This top cover then is to be set in from top to bottom on this optical type potentiometer that is arranged with base, on this top cover and be provided with one and can move therebetween open slot for this push-and-pull plectrum;
So when the light wave w that should elder generation's wave launcher be launched when the set reflecting optics of this packaged type reflection unit reflexed to this test point light wave receiver place, this light wave w can borrow this special circuit plate; Amplifier that other establishes and filter are amplified and filtering, cooperate simultaneously and be set in advance in the reference value of establishing the memory place in addition, can be by a controller of establishing in addition to calculate the actual amount of movement of this packaged type reflection unit, and then by with the comparison that is pre-set in standard amount of movement in this controller, with reach order about one establish in addition digital variable resistance make output one proper resistor value corresponding to this amount of movement.
2. optical type potentiometer as claimed in claim 1 is characterized in that: when this packaged type reflection unit was moved into maximum amount of movement place, this optical type potentiometer promptly had the function that this potentiometer of output is allowed the design maximum resistance value; Otherwise when this packaged type reflection unit was moved into minimum amount of movement place, this optical type potentiometer promptly had the function that this potentiometer of output is allowed the minimal design resistance value.
3. optical type potentiometer as claimed in claim 1 is characterized in that: can further add an extended fault display lamp that is somebody's turn to do outer upper shield on this special circuit plate, and when this optical type potentiometer breaks down, the function that provides the user to warn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02107538 CN1445796A (en) | 2002-03-15 | 2002-03-15 | Optical type potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02107538 CN1445796A (en) | 2002-03-15 | 2002-03-15 | Optical type potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1445796A true CN1445796A (en) | 2003-10-01 |
Family
ID=27811049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02107538 Pending CN1445796A (en) | 2002-03-15 | 2002-03-15 | Optical type potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1445796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985495A (en) * | 2014-06-06 | 2014-08-13 | 常州市武进凯利达电子有限公司 | Guide-rail potentiometer |
-
2002
- 2002-03-15 CN CN 02107538 patent/CN1445796A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985495A (en) * | 2014-06-06 | 2014-08-13 | 常州市武进凯利达电子有限公司 | Guide-rail potentiometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |