CN201104238Y - Optoelectronic large displacement measuring device and calibration holder thereof - Google Patents
Optoelectronic large displacement measuring device and calibration holder thereof Download PDFInfo
- Publication number
- CN201104238Y CN201104238Y CNU2007200602393U CN200720060239U CN201104238Y CN 201104238 Y CN201104238 Y CN 201104238Y CN U2007200602393 U CNU2007200602393 U CN U2007200602393U CN 200720060239 U CN200720060239 U CN 200720060239U CN 201104238 Y CN201104238 Y CN 201104238Y
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- large displacement
- rotary encoder
- steel wire
- sash weight
- photoelectricity
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a photoelectrical large displacement measuring device, which comprises steel wires, a crown block, a rotary encoder, a sash weight, an adjustable coder and a measurement display, wherein, the steel wires is orderly wound around and connected with coaxial rotary wheels of the crown block and the rotary encoder, and the fore end of the steel wires is connected with a measured object or the measured part of the measure object, while the rear end of the steel wires is connected with the sash weight; the rotary encoder is communicated by signals with the measurement display through the adjustable coder. The photoelectric large displacement measurement device has the advantages of high precision, large displacement, simple operation, can carry out acquisition and monitoring automatically and remotely, and is particularly suitable for displacement measurement under the conditions that the visual field is short and narrow and the environment is not safe.
Description
Technical field
The utility model relates to big distance measuring equipment, specifically is meant a kind of photoelectricity large displacement measurement device and calibrated mount thereof.
Background technology
At present, in the big range observation field of building, bridge structure and mechanical component distortion, displacement, measuring equipment commonly used has dipstick metering, bracing cable formula displacement meter and precision level etc.The measurement of bracing cable formula displacement meter is subjected to that ectocine is big, precision is limited, is difficult to form automation collection and needs several personnel's observations; The precision level rule must be measured under spaciousness, the without hindrance environment in the visual field, and looks survey time length, can not gather automatically and must be equipped with professional survey crew.As seen, above-mentioned measuring method all exists the limited influence of service condition.
Summary of the invention
The purpose of this utility model is to overcome influence and the prior art deficiency that above-mentioned environmental factor is brought, a kind of photoelectricity large displacement measurement device is provided, it has high precision, large deformation, simple to operation, robotization and remote capture monitoring are particularly suitable for the visual field and lack occasion narrow and insecure environments bottom offset or deformation measurement.
Another purpose of the present utility model is to provide the calibrated mount of above-mentioned photoelectricity large displacement measurement device.
The purpose of this utility model realizes by following proposal: this photoelectricity large displacement measurement device, comprise steel wire, fixed pulley, rotary encoder, sash weight, decipherer, measurement display, described steel wire is distinguished solderless wrapped connection with the coaxial runner of fixed pulley, rotary encoder successively, and the steel wire front end is connected with the tested position of measured object or measured object, the steel wire rear end is connected with sash weight, described rotary encoder carries out signal by decipherer with the measurement display and is connected, and measures display and shows Displacement Measurement value or deformation values.
For realizing the utility model better, also be provided with the sash weight bearing support between described sash weight and the rotary encoder, enlarge the sash weight moving range, fail the occasion accurately judged to adapt to measured value range.
Described measurement display adopts 2000 scale load measuring instruments, and it is the instrument of ultrahigh resolution and accuracy of measurement, by the performance of linear finishing of multistage and super wide adjusting range, can realize the measurement requirement of high precision, wide region; Described rotary encoder adopts current mode (OPEN-COLLECT) circuit characteristic, and the strong pulse signal of exportable anti-distortion can be realized the long range signals transmission simultaneously; Decipherer adopts the digital-to-analogue adapter circuit, and its function is to convert pulse signal to aanalogvoltage output.
The calibrated mount of this photoelectricity large displacement measurement device comprises horizontal guide, slide block spare, base, described slide block spare and horizontal guide activity interlocking, and slide block spare is connected with the front end of steel wire, and horizontal guide is fixed on the base.
Principle of work of the present utility model is: the tested position of measured object or measured object is connected with the front end of steel wire, when the tested position of measured object motion or measured object deforms, under the action of gravity of the sash weight that connects in the steel wire rear end, the coaxial runner of steel wire pulling rotary encoder rotates thereupon synchronously, the geometric displacement (distortion) of measured object (tested position) transfers the rotation angle amount to, the rotation angle amount is the variable quantity electric signal through opto-electronic conversion, the output of realization impulse electric charge, carry out digital-to-analog conversion through decipherer again, can be by measuring the shift value that display shows tested movement parts.
In like manner, this photoelectricity large displacement measurement device can carry out the shift value calibration by photoelectricity large displacement measurement device calibrated mount, at this moment, described measured object is described slide block spare, standard length value according to slide block spare moves on horizontal guide can realize the calibration to the measuring accuracy of measured object shift value or tested position deformation values.
The utility model has following advantage and effect with respect to prior art: this device has high precision, big displacement, and is simple to operation, but robotization and remote capture monitoring are particularly suitable for the short narrow occasion of measuring with the insecure environments bottom offset in the visual field.
Description of drawings
Fig. 1 is that the utility model photoelectricity large displacement measurement device is used to measure the structural representation of measured object displacement.
Fig. 2 is the tested position deformed configurations synoptic diagram that the utility model photoelectricity large displacement measurement device is used to measure measured object.
Fig. 3 is the structural representation of the calibrated mount of the utility model photoelectricity large displacement measurement device.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment one
As shown in Figure 1, this photoelectricity large displacement measurement device, comprise steel wire 7, fixed pulley 2, rotary encoder 3, sash weight 4, decipherer 5, measure display 6, steel wire 7 is distinguished solderless wrapped connection with the coaxial runner of fixed pulley 2, rotary encoder 3 successively, and steel wire 7 front ends are connected with measured object 1, steel wire 7 rear ends are connected with sash weight 4, and rotary encoder 3 carries out signal by decipherer 5 with measurement display 6 and is connected, and measure display 6 and show the Displacement Measurement values.
Embodiment two
As shown in Figure 2, this photoelectricity large displacement measurement device, comprise steel wire 7, fixed pulley 2, rotary encoder 3, sash weight 4, decipherer 5, measure display 6, steel wire 7 is distinguished solderless wrapped connection with the coaxial runner of fixed pulley 2, rotary encoder 3 successively, and steel wire 7 front ends are connected with the tested position 8 of measured object 1, steel wire 7 rear ends are connected with sash weight 4, also be provided with sash weight bearing support 9 between sash weight 4 and the rotary encoder 3, rotary encoder 3 carries out signal by decipherer 5 with measurement display 6 and is connected, and measures display 6 and shows the Displacement Measurement values.
The foregoing description one, two photoelectricity large displacement measurement device be such work: the tested position 8 of measured object 1 or measured object 1 is connected with the front end of steel wire 7, when the tested position 8 of measured object 1 motion or measured object 1 deforms, under the action of gravity of the sash weight 4 that connects in steel wire 7 rear ends, the coaxial runner of steel wire 7 pulling rotary encoders 3 rotates thereupon synchronously, the geometric displacement (distortion) of measured object 1 (tested position 8) transfers the rotation angle amount to, the rotation angle amount is the variable quantity electric signal through opto-electronic conversion, the output of realization impulse electric charge, carry out digital-to-analog conversion through decipherer 5 again, can be by measuring the shift value that display 6 shows tested movement parts.
In above-mentioned embodiment one, two, measure display 6 and adopt 2000 scale load measuring instruments, it is the instrument of a kind of synchronous digital ratio type AD conversion ultrahigh resolution and accuracy of measurement, it has the performance of 6 sections linear finishings, multiple calibration steps and super wide adjusting ranges, with guarantee this device realization wide region (0～1.5m), the measurement of high precision (0.1%);
Decipherer 5 adopts the digital-to-analogue adapter circuit, and its function is to convert pulse signal to aanalogvoltage output.
Embodiment three
As shown in Figure 3, the calibrated mount of this photoelectricity large displacement measurement device comprises horizontal guide 10, slide block spare 11, base 12, slide block spare 11 and guide rod 10 movable interlockings, and slide block spare 11 is connected with the front end of steel wire 7, and horizontal guide 10 is fixed on the base.According to the standard length value L0 that slide block spare 11 moves, can realize the big gearshift of photoelectricity is shown the calibration of measured value on horizontal guide 10.
As mentioned above, just can realize the utility model preferably, the foregoing description is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model; Be that all equalizations of being done according to the utility model content change and modification, all contained by the utility model claim scope required for protection.
Claims (3)
1, photoelectricity large displacement measurement device, it is characterized in that: comprise steel wire, fixed pulley, rotary encoder, sash weight, decipherer, measurement display, described steel wire is distinguished solderless wrapped connection with the coaxial runner of fixed pulley, rotary encoder successively, and the steel wire front end is connected with the tested position of measured object or measured object, the steel wire rear end is connected with sash weight, and described rotary encoder carries out signal by decipherer with the measurement display and is connected.
2, according to the described photoelectricity large displacement measurement of claim 1 device, it is characterized in that: also be provided with the sash weight bearing support between described sash weight and the rotary encoder.
3, according to the calibrated mount of the described photoelectricity large displacement measurement of claim 1 device, it is characterized in that: comprise horizontal guide, slide block spare, base, described slide block spare and horizontal guide activity interlocking, and slide block spare is connected with the front end of steel wire, and horizontal guide is fixed on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200602393U CN201104238Y (en) | 2007-11-28 | 2007-11-28 | Optoelectronic large displacement measuring device and calibration holder thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200602393U CN201104238Y (en) | 2007-11-28 | 2007-11-28 | Optoelectronic large displacement measuring device and calibration holder thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201104238Y true CN201104238Y (en) | 2008-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200602393U Expired - Fee Related CN201104238Y (en) | 2007-11-28 | 2007-11-28 | Optoelectronic large displacement measuring device and calibration holder thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201104238Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043863A (en) * | 2014-12-26 | 2015-11-11 | 高铁检测仪器（东莞）有限公司 | Semi-automatic point-marking extensometer |
| CN106705825A (en) * | 2016-12-29 | 2017-05-24 | 中交天津港航勘察设计研究院有限公司 | Stroke measuring device of wave compensator for trailing suction ship |
| CN109341662A (en) * | 2017-12-26 | 2019-02-15 | 贵州桥梁建设集团有限责任公司 | Pylon deviates automatic measurement alarm system and method |
-
2007
- 2007-11-28 CN CNU2007200602393U patent/CN201104238Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043863A (en) * | 2014-12-26 | 2015-11-11 | 高铁检测仪器（东莞）有限公司 | Semi-automatic point-marking extensometer |
| CN105043863B (en) * | 2014-12-26 | 2018-04-10 | 高铁检测仪器（东莞）有限公司 | Semi-automatic punctuate extensometer |
| CN106705825A (en) * | 2016-12-29 | 2017-05-24 | 中交天津港航勘察设计研究院有限公司 | Stroke measuring device of wave compensator for trailing suction ship |
| CN109341662A (en) * | 2017-12-26 | 2019-02-15 | 贵州桥梁建设集团有限责任公司 | Pylon deviates automatic measurement alarm system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20101128 |