CN101526375A - Roller device generating pulse signals - Google Patents
Roller device generating pulse signals Download PDFInfo
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- CN101526375A CN101526375A CN200810007406A CN200810007406A CN101526375A CN 101526375 A CN101526375 A CN 101526375A CN 200810007406 A CN200810007406 A CN 200810007406A CN 200810007406 A CN200810007406 A CN 200810007406A CN 101526375 A CN101526375 A CN 101526375A
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- pulse signal
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- roller apparatus
- end cap
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Abstract
The invention discloses a roller device generating pulse signals, which comprises a rotatable stop pulley, a nonrotatable end cover, and a sensor arranged in the stop pulley, wherein the central position of the stop pulley is provided with a nonrotatable wheel shaft; the end cover and the wheel shaft form connection; the sensor has three types, namely a photo-electric induction type, a magnetic induction type and a connection point type; and taking the photo-electric induction type as instance, a code wheel is arranged and rotated along with the stop pulley, the end cover is fixed with an optical transceiver, when the code wheel is rotated along the stop pulley to measure the length and positions, the number of turns of the code wheel is detected by the pulse signals which are generated by the optical transceiver emitting light to a reflective bar code of the code wheel, and signal values access a counter to obtain the measured length or positions.
Description
Technical field
The present invention relates to a kind of sensing apparatus that is installed in the running roller structure,, belong to the technical field of measuring length or position to produce pulse signal.
Background technology
Relevant cloth, paper, leather, plastic foil, steel plate, cable, optical fiber or the like in the daily life must be made specific specification length when producing, then be that unit valuates and peddles transaction with length.Though measure the mode of length electronic stopclock is arranged, counter etc., yet, measure needs more fast and accurately for adapting to, release a kind of length-measuring appliance at present, it connects a position transducer in a rotating wheel external electric, and position transducer can all potentiometer of pot in this way, optical rotary coder opticalrotary encoder, absolute optical encoder absolute optical encoder, the rotary resolver resolver of linear change differential transformer linear variable differential transformer or the like electronic type sensing apparatus.
Though position transducer has variform, the sensing apparatus of described this measurement length or position can produce following problem:
1, there is a relative scale signal numerical value in the sensor of the diameter circumferential length of wheel and position transducer generation signal, so connecting behind the counter could length that interpretation is surveyed, but wheel separates with the individuality of position transducer, make both in the manufacturing assembling, be difficult to cooperate precision,, assemble loaded down with trivial details because the wrong consequently precision of easy dress has error, but also interpolation production procedure, very bother, thus the shortcoming standardization, the manufacturing cost height.
2, because sensor exposes, damage so be subjected to the factor affecting such as humidity, temperature and vibrations of environment easily, especially the electronic package of accuracy makes moist, and its performance is impaired easily.
Summary of the invention
The purpose of this invention is to provide a kind of roller apparatus that produces pulse signal, just can reach standardization, modularization, roller apparatus that accuracy is high at lower cost, be able to accurate measuring length or position.
For reaching above-mentioned purpose, the present invention adopts following technical scheme:
The roller apparatus of generation pulse signal provided by the invention comprises limited slip wheel, end cap and sensor, and described limited slip wheel center is provided with wheel shaft; Described end cap is positioned at an end of limited slip wheel, and engages with wheel shaft formation; Described sensor is arranged at limited slip wheel inside, comprises code-disc and optical transceiver, by relatively rotating of code-disc and limited slip wheel, makes between optical transceiver and code-disc and produces optical sensor, to obtain pulse signal.
For reaching above-mentioned purpose, the present invention adopts following technical scheme:
The roller apparatus of generation pulse signal provided by the invention, comprise limited slip wheel, end cap and sensor, described sensor is arranged at limited slip wheel inside, comprise the magnetic thing that rotates with limited slip wheel, and the detecting thing that is fixed on this end cap, rotate by this magnetic thing and this limited slip wheel, make this detecting thing detect the magnetic force change of this magnetic thing, and produce pulse signal.
Wherein, described magnetic thing is a magnet ring, and described detecting thing is a Hall IC; The described magnet ring of outer wheel hub installed inside of described wheel hub, the both sides of described magnet ring are respectively the S utmost point and the N utmost point, and an end cap fixing circuit board is electrically connected described Hall IC on the described circuit board.
Described magnetic thing is a fixed magnet, and described detecting thing is a magnetic reed switch; The described fixed magnet of outer wheel hub installed inside of described wheel hub, an end cap fixing circuit board is electrically connected described magnetic reed switch on the described circuit board.
Described limited slip wheel is the ring body of ring rubber material, engages wheel hub, and described wheel hub has outer nave collar and interior nave collar.
Connect between described outer, the interior nave collar and stretch several ribs to form one, described outer nave collar lateral surface contact limited slip wheel medial surface, nave collar is the hollow ring body in described, the axial distribution zone is equivalent to described outer nave collar middle section position, wheel shaft runs through vacancy in the described interior nave collar versatilely, the forward and backward position of nave collar in described relatively, each tight bearing set.
The outer wheel hub installed inside of described wheel hub is tray fixedly, locate code-disc on the described tray, described code-disc upper edge annular region, equi-spaced apart are carved and are established many reflecting strips font codes, this reflecting strips font code forms along annular region and is spaced, and is transparent surface between the reflecting strips font code.
Described circuit board is arranged at end cap, and described circuit board couples optical transceiver.
Described end cap plug is loaded on the cap shape ducted body in the wheel hub, this end cap has plug end and lining, and an end external diameter of described end cap is less, and fills in the plug end that is loaded on outer nave collar inboard versatilely, described plug holds an inboard place to form the retaining edge of ladder section shape, and the described retaining edge power circuit board back side fastens.
The lining that extends axially hollow form is held towards plug in described end cap center, and described lining internal diameter and wheel shaft corresponding position external diameter are wringing fit.
Described end cap is provided with the line hole in addition in the outer end, the signal wire that is connected with optical transceiver for code-disc passes through this, circuit board is filled in together with described end cap and is loaded on outer nave collar inboard, and lining and wheel shaft are fixing, and wheel shaft passes the external thread screw lock union nut outside the described lining.
The present invention has following technique effect:
1, sensor of the present invention is hidden in end cap and limited slip wheel inside; do not expose; and intercept external environment factors such as extraneous humidity, temperature, vibrations by limited slip wheel, end cap; the assembly of protection sensor is unlikely influenced and damage performance; not only increase serviceable life, more can promote fiduciary level effectively lastingly.
2, the present invention integrates with the concentric circles structure, be that the center is organized and worn, installs each assembly with the wheel shaft, sensor installation associated component and limited slip wheel are assembled into whole group form, delicate structure, need not indivedual keyholed back plate installation procedures, make production procedure quick, quantize to promote so save installation procedure, reduce the technician degree of difficulty is installed, more oversimplify.
3, because the size form of limited slip wheel, end cap, wheel shaft, can be standardized size decides, make and make and assembling, have modularization, standardized characteristics, as long as according to the occasion demand, the sensor of changing corresponding specification performance gets final product, and limited slip wheel, end cap, wheel shaft need not to make separately different size, so can be at the sensing function that just has high-accuracy property down cheaply.
Description of drawings
Fig. 1 is the stereographic map of a preferred embodiment of the present invention's roller apparatus of producing pulse signal;
Fig. 2 is the assembled sectional view of a preferred embodiment of the present invention's roller apparatus of producing pulse signal;
Fig. 3 is the code-disc end plan view of a preferred embodiment of the present invention's roller apparatus of producing pulse signal;
Fig. 4 is the circuit board end plan view of tool optical transceiver of a preferred embodiment of the present invention's roller apparatus of producing pulse signal;
Fig. 5 is the solid enforcement figure of a preferred embodiment of the present invention's roller apparatus of producing pulse signal;
Fig. 6 is the assembled sectional view of another preferred embodiment of the present invention's roller apparatus of producing pulse signal;
Fig. 7 is the magnet ring end plan view of another preferred embodiment of the present invention's roller apparatus of producing pulse signal;
Fig. 8 is the circuit board end plan view of tool Hall IC of another preferred embodiment of the present invention's roller apparatus of producing pulse signal;
Fig. 9 is the assembled sectional view of a preferred embodiment again of the present invention's roller apparatus of producing pulse signal;
Figure 10 is the magnet end planar view of a preferred embodiment again of the present invention's roller apparatus of producing pulse signal;
Figure 11 is the circuit board end plan view of tool magnetic reed switch of a preferred embodiment again of the present invention's roller apparatus of producing pulse signal.
Embodiment
In order to make those skilled in the art person understand the present invention program better, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with drawings and Examples.
Please refer to Fig. 1, what it illustrated is the stereographic map of a preferred embodiment of the present invention; Roller apparatus has one and is positioned at the limited slip wheel 10 in the outside, one group of wheel shaft 15 that is through at limited slip wheel 10, and an end cap 30 that is arranged at limited slip wheel 10 1 ends; Wherein, be arranged at limited slip wheel 10 inside, the form that sensor cannot not presented exposedly in order to the sensor that produces pulse signal.
Please refer to Fig. 2, what it illustrated is the assembled sectional view of a preferred embodiment of the present invention; Wherein, limited slip wheel 10 has a wheel hub 11, a wheel shaft 15, a sensor 20, an end cap 30; Wherein, this limited slip wheel 10 is ring bodies of a ring rubber material, the medial surface of its hollow engages and is fixed in a wheel hub 11 that is hollow form, and this wheel hub 11 has nave collar 112 in an outer nave collar 111 and, connects between outer nave collar 111 and the interior nave collar 112 to stretch many ribs with the formation one, wherein, outer nave collar 111 lateral surfaces contact limited slip wheel 10 medial surfaces, interior nave collar 112 is the hollow ring body, the axial distribution zone is equivalent to outer nave collar 111 middle section positions, therefore, axial length is shorter than outer nave collar 111.
Nave collar 112 hollows were in mutually internally nave collar 112 forward and backward positions in this wheel shaft 15 ran through versatilely, each tight suit one bearing 13, it is rotatable with wheel hub 11 to reach limited slip wheel 10, and the effect that wheel shaft 15 does not rotate, wheel shaft 15 1 end external diameters are less, and the end of this end has external thread 150.
This sensor 20 is the code-disc of optical induction type at this embodiment, sensor 20 primary clusterings are optical transceiver 26 and code-disc 22, and outer wheel hub 111 installed inside are fixed a tray 21, location one code-disc 22 on the tray 21, because wheel hub 11 inboard binding trays 21 are so code-disc 22 can rotate with wheel hub 11; Please cooperate with reference to Fig. 3, Fig. 4, what Fig. 3 illustrated is the code-disc end plan view of a preferred embodiment of the present invention; What Fig. 4 illustrated is the circuit board end plan view of the tool optical transceiver of a preferred embodiment of the present invention; Wherein, code-disc 22 upper edge annular regions, equi-spaced apart are carved and to be established several reflecting strips font codes 23, and these several reflecting strips font codes 23 form along annular region and are spaced and just like bar code, this transparent surface 231 is positioned at the gap of reflecting strips font code 23; Optical transceiver 26 has luminescence unit and light receiving unit, and optical transceiver 26 is provided with towards code-disc 22, and the circuit of optical transceiver 26 correspondences then is arranged at circuit board 25.
These end cap 30 plugs are loaded in the wheel hub 11, and end cap 30 is fixing with wheel shaft 15, wherein, this end cap 30 is a cap shape ducted body, has a plug end 31, one lining 33, end cap 30 1 ends can be filled in the plug end 31 that is loaded on outer nave collar 111 inboards versatilely for external diameter is less, and plug end 31 inboard places form the retaining edge 32 of ladder section shape, utilize retaining edge 32 power circuit boards 25 back sides to fasten; End cap 30 centers extend axially the lining 33 of hollow form towards plug end 31 directions, through hole 331 internal diameters and wheel shaft 15 corresponding position external diameters in this lining 33 are wringing fit, and end cap 30 is provided with a line hole 34 in addition in the outer end, signal wire (among the figure not label) warp hole 34 passes to the outside, with join dependency power supply and counter.
The vacancy group is passed lining 33 lateral surfaces in the described circuit board 25, and is resisted against retaining edge 32, and circuit board 25 is loaded on outer nave collar 111 inboards together with end cap 30 plug, and lining 33 internal diameters and wheel shaft 15 fits are fixed; Wheel shaft 15 passes the external thread 150 outside the lining 33, and screw lock engages a nut 151, make wheel shaft 15 and end cap 30, circuit board 25 all can not rotate with respect to limited slip wheel 10 and code-disc 22 with transceiver 26, and limited slip wheel 10 turns with wheel hub 11, code-disc 22.
That Fig. 5 illustrates is the solid enforcement figure of a preferred embodiment of the present invention, measures the action synoptic diagram of length in order to explanation; Please cooperate with reference to Fig. 2, during enforcement, the present invention be placed a end such as determinands such as paper, leather 60, appropriate again application of force pulled straight determinand 60 1 ends (noticing that the application of force is not excessive) leave limited slip wheel 10 up to determinand 60; Because limited slip wheel 10 outer side-friction forces are big, the good rubber material of on-slip, so can be pulled the application of force of determinand 60 draws, cause limited slip wheel 10 to rotate in the original place, code-disc 22 together with wheel hub 11 and binding thereof is that fulcrum rotates with wheel shaft 15 all, so, reflecting strips font code 23 and transparent surface 231 are in the middle of rotating on the code-disc 22, launch light by optical transceiver 26 in the face of code-disc 22, when the light of optical transceiver 26 is mapped to reflecting strips font code 23, just the light reflected back is given optical transceiver 26 and produced a signal; If light is transmitted into 231 of transparent surfaces and can not sends signal, for instance, limited slip wheel 10 external diameters are 31.83mm, circumference is 100mm, and on the code-disc 22 if any 100 reflecting strips font codes 23, then turning around just has 100 signals, representing resolution is 100mm, rotate the number of turns so calculate code-disc 22, connect counter by signal wire after, just can learn determinand 60 length measured of wanting or position.
In like manner, please referring again to the sensor 40 of another preferred embodiment magnetic inductive of Fig. 6～shown in Figure 8, its weatherability is preferable; Wherein, magnet ring 41 is the magnetic thing, and Hall IC 43 is the detecting thing; Sensor 40 is fixed a magnet ring 41 in wheel hub 11 and outer wheel hub 111 inboards, magnet ring 41 both sides are respectively the S utmost point and the N utmost point, end cap 30 is then on the fixing circuit board 42 in lining 33 outsides, one Hall IC 43 is set, therefore, magnet ring 41 along with limited slip wheel 10 and wheel hub 11 when static Hall IC 43 is rotated, make Hall IC 43 detect the magnetic force change of magnet ring 41 at S, the N utmost point, therefore, Hall IC 43 is detected the number of turns that magnet ring 41 rotates, and signal is communicated to counter and learns and measure length or position.
Please referring to the sensor 50 of the preferred embodiment contact type again of Fig. 9～shown in Figure 11, sensor 50 is applicable to the occasion that noise is stronger again, and sensor 50 is difficult for disturbed; Wherein, magnet 51 is the magnetic thing, and magnetic reed switch 53 is the detecting thing, magnet 51 is fixed in wheel hub 11 and outer wheel hub 111 inboards, on the circuit board 52 that lining 33 outsides of end cap 30 are fixed a magnetic reed switch 53 is set, therefore, magnet 51 with limited slip wheel 10 and wheel hub 11 when static magnetic reed switch 53 rotates, be the variation that utilizes magnetic reed switch 53 detecting magnet 51 magnetic force equally, make two elastic springs form the contact type induction and the generation signal of contact, so the number of turns that magnetic reed switch 53 rotates by detecting magnet 51 is communicated to the signal that produces counter and learns measurement length or position.
Thus, integrate sensor 20 or 40 or 50 by limited slip wheel 10 of the present invention, wheel hub 11, end cap 30 and form a concentrically ringed tectosome, reach modularization, standardized length metering sensing apparatus, not only reduce cost, more can promote production efficiency, because sensor 20 or 40 or 50 all is hidden in wheel hub 11 and end cap 30 inside, do not influence performance so be not subjected to moisture, moisture content, reach the reliable and lasting purpose of degree of accuracy.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (24)
1, a kind of roller apparatus that produces pulse signal is characterized in that, comprising:
One limited slip wheel, the center are provided with relative to a wheel shaft that does not rotate;
One end cap, it is positioned at an end of this limited slip wheel, and engages with this wheel shaft formation;
One sensor is arranged at this limited slip wheel inside, comprises a code-disc and an optical transceiver, rotates by this code-disc and this limited slip wheel, makes between this optical transceiver and this code-disc and produces optical sensor, to obtain at least one pulse signal.
2, the roller apparatus of generation pulse signal according to claim 1 is characterized in that, described limited slip wheel is the ring body of ring rubber material, engages a wheel hub, and this wheel hub has nave collar in an outer nave collar and.
3, the roller apparatus of generation pulse signal according to claim 2, it is characterized in that, connect between described outer, the interior nave collar and stretch several ribs to form one, should contact this limited slip wheel medial surface by outer nave collar lateral surface, should interior nave collar be the hollow ring body, the axial distribution zone be equivalent to this outer nave collar middle section position.
4, the roller apparatus of generation pulse signal according to claim 3 is characterized in that, vacancy in the nave collar in described wheel shaft runs through versatilely, the forward and backward position of nave collar in being somebody's turn to do relatively, each tight suit one bearing.
5, the roller apparatus of generation pulse signal according to claim 2 is characterized in that, the outer wheel hub installed inside of described wheel hub is fixed a tray, this code-disc of location on this tray.
6, the roller apparatus of generation pulse signal according to claim 5, it is characterized in that described code-disc upper edge annular region, equi-spaced apart are carved and established many reflecting strips font codes, this reflecting strips font code forms along annular region and is spaced, and is transparent surface between this reflecting strips font code.
7, the roller apparatus of generation pulse signal according to claim 6 is characterized in that, a described circuit board is arranged at this end cap, and this circuit board couples this optical transceiver.
8, the roller apparatus of generation pulse signal according to claim 2 is characterized in that, described end cap plug is loaded on the cap shape ducted body in this wheel hub, and this end cap has a plug end and a lining.
9, the roller apparatus of generation pulse signal according to claim 8, it is characterized in that described end cap one end is that external diameter is less, plug is loaded on the plug end of this outer nave collar inboard versatilely, this inboard place of plug end forms a retaining edge of ladder section shape, and this retaining edge fastens for a back of circuit board.
10, the roller apparatus of generation pulse signal according to claim 9 is characterized in that, the lining that extends axially hollow form is held towards this plug in described end cap center, and this lining internal diameter and this wheel shaft corresponding position external diameter are wringing fit.
11, the roller apparatus of generation pulse signal according to claim 10, it is characterized in that, described end cap is provided with a line hole in addition in the outer end, the signal wire that is connected with this optical transceiver for code-disc passes through this line hole, this circuit board is filled in together with this end cap and is loaded on this outer nave collar inboard, this lining and this wheel shaft are fixed, and the external thread screw lock that this wheel shaft passes outside this lining engages a nut.
12, a kind of roller apparatus that produces pulse signal is characterized in that, comprising:
One limited slip wheel, the center are provided with relative to a wheel shaft that does not rotate;
One end cap, it is positioned at an end of this limited slip wheel, and engages with this wheel shaft formation;
One sensor is arranged at this limited slip wheel inside, comprises a magnetic thing that rotates with this limited slip wheel, an and detecting thing that is fixed in this end cap, rotate by this magnetic thing and this limited slip wheel, make this detecting thing detect the magnetic force change of this magnetic thing, and produce pulse signal.
13, the roller apparatus of generation pulse signal according to claim 12, it is characterized in that, described magnetic thing is a magnet ring, this detecting thing is a Hall IC, this magnet ring of outer wheel hub installed inside of one wheel hub, the both sides of this magnet ring are respectively the S utmost point and the N utmost point, and this end cap is fixed a circuit board, are electrically connected this Hall IC on this circuit board.
14, the roller apparatus of generation pulse signal according to claim 12, it is characterized in that, described magnetic thing is a fixed magnet, this detecting thing is a magnetic reed switch, this fixed magnet of outer wheel hub installed inside of one wheel hub, this end cap is fixed a circuit board, is electrically connected this magnetic reed switch on this circuit board.
15, the roller apparatus of generation pulse signal according to claim 12 is characterized in that, described limited slip wheel is the ring body of ring rubber material, engages a wheel hub, and this wheel hub has nave collar in an outer nave collar and.
16, the roller apparatus of generation pulse signal according to claim 15, it is characterized in that, connect between described outer, the interior nave collar and stretch several ribs to form one, should contact this limited slip wheel medial surface by outer nave collar lateral surface, should interior nave collar be the hollow ring body, the axial distribution zone be equivalent to this outer nave collar middle section position.
17, the roller apparatus of generation pulse signal according to claim 16 is characterized in that, described wheel shaft runs through vacancy in this interior nave collar, the forward and backward position of nave collar in being somebody's turn to do relatively, each tight suit one bearing versatilely.
18, the roller apparatus of generation pulse signal according to claim 15 is characterized in that, the outer wheel hub installed inside of described wheel hub is fixed a tray, location one code-disc on this tray.
19, the roller apparatus of generation pulse signal according to claim 18, it is characterized in that described code-disc upper edge annular region, equi-spaced apart are carved and established many reflecting strips font codes, those reflecting strips font codes form along annular region and are spaced, and are transparent surface between those reflecting strips font codes.
20, the roller apparatus of generation pulse signal according to claim 19 is characterized in that, a circuit board is arranged at this end cap, and this circuit board couples an optical transceiver.
21, the roller apparatus of generation pulse signal according to claim 15 is characterized in that, described end cap plug is loaded on the cap shape ducted body in this wheel hub, and this end cap has a plug end and a lining.
22, the roller apparatus of generation pulse signal according to claim 21, it is characterized in that described end cap one end is that external diameter is less, plug is loaded on the plug end of this outer nave collar inboard versatilely, this inboard place of plug end forms a retaining edge of ladder section shape, and this retaining edge fastens for a back of circuit board.
23, the roller apparatus of generation pulse signal according to claim 22 is characterized in that, the lining that extends axially hollow form is held towards this plug in described end cap center, and this lining internal diameter and this wheel shaft corresponding position external diameter are wringing fit.
24, the roller apparatus of generation pulse signal according to claim 23, it is characterized in that, described end cap is provided with a line hole in addition in the outer end, the signal wire warp hole that is connected with an optical transceiver for a code-disc passes, this circuit board is filled in together with this end cap and is loaded on this outer nave collar inboard, this lining and this wheel shaft are fixed, and the external thread screw lock that this wheel shaft passes outside this lining engages a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810007406A CN101526375A (en) | 2008-03-07 | 2008-03-07 | Roller device generating pulse signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810007406A CN101526375A (en) | 2008-03-07 | 2008-03-07 | Roller device generating pulse signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101526375A true CN101526375A (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810007406A Pending CN101526375A (en) | 2008-03-07 | 2008-03-07 | Roller device generating pulse signals |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2467399A (en) * | 2009-02-03 | 2010-08-04 | Easypack Ltd | Metal roll stopper. |
| CN102981181A (en) * | 2012-12-04 | 2013-03-20 | 朱德兵 | Rolling motional longitudinal wave sensor device and using method thereof |
| CN106388672A (en) * | 2015-07-31 | 2017-02-15 | 金红叶纸业集团有限公司 | Distributor and consumable material monitoring system adopting same |
| CN108942757A (en) * | 2018-06-27 | 2018-12-07 | 燕山大学 | A kind of electronic counting type torque spanner |
| CN111551092A (en) * | 2020-04-28 | 2020-08-18 | 北京许继电气有限公司 | Intelligent wire length metering equipment for network wiring operation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88200393U (en) * | 1988-01-21 | 1988-11-23 | 航天部第五○二研究所 | Sensor for measuring length |
| US7310882B2 (en) * | 2004-10-06 | 2007-12-25 | Sick Stegmann Gmbh | Measuring device |
-
2008
- 2008-03-07 CN CN200810007406A patent/CN101526375A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88200393U (en) * | 1988-01-21 | 1988-11-23 | 航天部第五○二研究所 | Sensor for measuring length |
| US7310882B2 (en) * | 2004-10-06 | 2007-12-25 | Sick Stegmann Gmbh | Measuring device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2467399A (en) * | 2009-02-03 | 2010-08-04 | Easypack Ltd | Metal roll stopper. |
| CN102981181A (en) * | 2012-12-04 | 2013-03-20 | 朱德兵 | Rolling motional longitudinal wave sensor device and using method thereof |
| CN106388672A (en) * | 2015-07-31 | 2017-02-15 | 金红叶纸业集团有限公司 | Distributor and consumable material monitoring system adopting same |
| CN108942757A (en) * | 2018-06-27 | 2018-12-07 | 燕山大学 | A kind of electronic counting type torque spanner |
| CN111551092A (en) * | 2020-04-28 | 2020-08-18 | 北京许继电气有限公司 | Intelligent wire length metering equipment for network wiring operation |
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Open date: 20090909 |