CN102589444A - Concave mirror catoptric imaging type optical lever micro displacement measurement system - Google Patents
Concave mirror catoptric imaging type optical lever micro displacement measurement system Download PDFInfo
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- CN102589444A CN102589444A CN2012100299847A CN201210029984A CN102589444A CN 102589444 A CN102589444 A CN 102589444A CN 2012100299847 A CN2012100299847 A CN 2012100299847A CN 201210029984 A CN201210029984 A CN 201210029984A CN 102589444 A CN102589444 A CN 102589444A
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- optical lever
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- tiptoe
- concave mirror
- directional light
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Abstract
The invention relates to a concave mirror catoptric imaging type optical lever micro displacement measurement system, which comprises a concave mirror catoptric imaging type optical lever, a parallel light cylinder, a support, a scale ruler and a power supply. A back tiptoe of the optical lever is placed at the top end of an object to be measured, a front tiptoe is placed on a platform, a concave mirror is fixed right above the front tiptoe, and the parallel light cylinder and the scale ruler are installed on the support and are opposite to the concave mirror. The system can conduct high-precision measurement on infinitesimal displacement, and is low in manufacture cost, rapid in detection speed, high in accuracy, strong in reliability, visual and intuitionistic and simple in operation.
Description
Technical field
The invention belongs to field of measuring technique, be specifically related to micro-displacement high precision measuring system and method.
Background technology
Micro-displacement is a key factor that in processes such as engineering design, machine-building, materials processing, must take into full account.Conventional detection generally is to measure through instruments such as clock gauge, traditional optical lever, Hall element, interferences of light, and these method manufacturing costs are higher, inconvenience is regulated, the reading difficulty, and efficiency of measurement is low, not directly perceived.
Summary of the invention
We's bright proposition a kind of concave mirror catoptric imaging formula optical lever micro-displacement measuring system and method, this system utilize concave mirror emission imaging that micro-displacement is amplified, and accurately measure, and manufacturing cost is lower, visual in image, easy operating.
For the tiny length variation of Displacement Measurement, native system adopts the optical lever principle that micro-displacement is carried out multistage amplification, through the measurement to displacement enlargement, measures micro displacement indirectly and changes.
Technical scheme of the present invention is following:
A kind of concave mirror catoptric imaging formula optical lever micro-displacement measuring system comprises concave mirror catoptric imaging formula optical lever, directional light tube, support and scale; It is characterized in that:
Described concave mirror catoptric imaging formula optical lever comprises first support, optical lever and spherical mirror; The back tiptoe of optical lever is positioned over the upper end of object under test, and preceding tiptoe is positioned on the upper end platform of support, spherical mirror be fixed in optical lever preceding tiptoe directly over, the inclination angle, front and back of spherical mirror can be regulated;
Described directional light tube and scale are installed on second support; Said directional light tube comprises urceolus, is contained in glass mirror, convergent lens and bulb in the urceolus successively from front to back; Carve " ten " sign line on the glass mirror, the urceolus between convergent lens and the bulb is partly with the screw thread that can regulate urceolus length and louvre, and said directional light tube connects the 220V AC power through power lead, and said scale is the millimeter rule.
The directional light tube is placed on the focal length place in spherical mirror dead ahead; Opening power; Regulate light process convergent lens and glass mirror formation parallel beam that screw thread sends bulb; Let parallel beam just be mapped to spherical mirror, light is gone up a certain scale place at scale (4) and is become " ten " word picture clearly after the spherical mirror emission.
When micro-displacement Δ L takes place in the back tiptoe lower end of optical lever; The spherical mirror run-off the straight; The scale of above-mentioned " ten " word picture on scale changes to another scale; Measure the distance b of tiptoe and back tiptoe before the distance B, optical lever of the scale variation delta n of " ten " word picture on scale, directional light tube tiptoe before the optical lever; According to formula
, calculate micro-displacement Δ L.
The present invention has following advantage: can accurately measure micro-displacement, detection speed is fast, precision is high, good reliability, visual in image, and is simple to operate, and low cost of manufacture can provide scientific basis for engineering design, machine-building, materials processing.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a directional light barrel structure synoptic diagram of the present invention;
Fig. 3 is an optical lever structural representation of the present invention;
Fig. 4 is optical lever amplification principle figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further description.
As shown in Figure 1, catoptric imaging formula optical lever is made up of support 8, optical lever 7 and spherical mirror 6.The back tiptoe 7-1 of optical lever 7 is positioned over the upper end of object under test, and preceding tiptoe is positioned on the upper end platform of support 8, and spherical mirror 6 is fixed in the preceding tiptoe (7-2,7-3) of optical lever) directly over, the inclination angle, front and back of spherical mirror 6 can be regulated, and is as shown in Figure 3.
Described directional light tube 2 is installed on first support 5 with scale 4, and directional light tube 2 is made up of bulb 2-4, urceolus 2-2, convergent lens 2-3, glass mirror 2-1.Be carved with " ten " sign line on the glass mirror 2-1, the urceolus 2-2 between convergent lens 2-3 and the bulb 2-4 is partly with screw thread 2-5 that can regulate urceolus 2-2 length and louvre 2-6.Scale 4 is the millimeter rule, and power lead 3 connects directional light tube 2 and 220V AC power 1.
During measurement; Directional light tube 2 is placed on the focal length place in spherical mirror 6 dead aheads; Opening power; Regulate the light that screw thread 2-5 sends bulb 2-4 and form parallel beam, let parallel beam just be mapped to spherical mirror 6 through convergent lens 2-3 and glass mirror 2-1, light after spherical mirror 6 emissions on scale 4 a certain scale B of place one-tenth " ten " word picture clearly.
When testee has a micro-displacement
Δ LAfter, micro-displacement Δ L takes place in the back tiptoe 7-1 lower end of optical lever, and spherical mirror 6 run-off the straights are around preceding tiptoe 7-2,7-3 axis tilt minute angle Δ
αThe scale of above-mentioned " ten " word picture on scale 4 changes to another scale A, measures the distance b of preceding tiptoe 7-2,7-3 and back tiptoe 7-1 of distance B, the optical lever of the scale variation delta n of " ten " word picture on scale 4, directional light tube 2 tiptoe 7-2,7-3 before the optical lever.
As shown in Figure 4, spherical mirror 6 deflection minute angle Δs
α:
bBe the vertical range of optical lever rear fulcrum 7-1, because Δ to tiptoe 7-2,7-3 axis
αVery little, so, can be similar to:
(3) formula can get divided by (4) formula:
Claims (1)
1. a concave mirror catoptric imaging formula optical lever micro-displacement measuring system comprises concave mirror catoptric imaging formula optical lever, directional light tube, support and scale; It is characterized in that:
Described concave mirror catoptric imaging formula optical lever comprises first support (8), optical lever (7) and spherical mirror (6); The back tiptoe (7-1) of optical lever (7) is positioned over the upper end of object under test; Preceding tiptoe (7-2,7-3) is positioned on the upper end platform of support (8); Spherical mirror (6) be fixed in optical lever preceding tiptoe (7-2,7-3) directly over, the inclination angle, front and back of spherical mirror (6) can be regulated;
Described directional light tube (2) and scale (4) are installed on second support (5); Said directional light tube (2) comprises urceolus (2-2), is contained in glass mirror (2-1), convergent lens (2-3) and bulb (2-4) in the urceolus (2-2) successively from front to back; Glass mirror (2-1) is gone up and is carved " ten " sign line; (urceolus between (2-4) (2-2) part band can be regulated the screw thread (2-5) of urceolus length for convergent lens (2-3) and bulb; Said directional light tube (2) connects power supply (1) through power lead (3), and the parallel beam of directional light tube (2) just is being mapped to spherical mirror (6); Said scale (4) is the millimeter rule, and light is gone up a certain scale place (B) at scale (4) and become " ten " word picture clearly after spherical mirror (6) emission;
When micro-displacement Δ L takes place in back tiptoe (7-1) lower end of optical lever (7); Spherical mirror (6) run-off the straight; The scale of above-mentioned " ten " word picture on scale (4) changes to another scale (A); Measure before the distance B, optical lever of the scale variation delta n of " ten " word picture on scale (4), directional light tube (2) tiptoe (7-2,7-3) before the optical lever tiptoe (7-2,7-3) and the back distance b of tiptoe (7-1); According to formula
, calculate micro-displacement Δ L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100299847A CN102589444A (en) | 2012-02-11 | 2012-02-11 | Concave mirror catoptric imaging type optical lever micro displacement measurement system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100299847A CN102589444A (en) | 2012-02-11 | 2012-02-11 | Concave mirror catoptric imaging type optical lever micro displacement measurement system |
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| CN102589444A true CN102589444A (en) | 2012-07-18 |
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| CN2012100299847A Pending CN102589444A (en) | 2012-02-11 | 2012-02-11 | Concave mirror catoptric imaging type optical lever micro displacement measurement system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630075A (en) * | 2012-08-22 | 2014-03-12 | 上海工程技术大学 | Light beam small displacement measurement method and measurement device |
| CN105953905A (en) * | 2016-04-21 | 2016-09-21 | 大连理工大学 | Transient micro-vibration measurement device and method based on prism refracting signal amplification |
| CN113211192A (en) * | 2021-05-13 | 2021-08-06 | 成都大学 | Calibrating device for geometric error of machine tool and corner positioning error of rotary table |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989889Y (en) * | 2006-12-29 | 2007-12-12 | 西南大学 | Metal wire expansion coefficient investigating experimental device |
| CN201575793U (en) * | 2009-05-12 | 2010-09-08 | 强晓明 | Optical lever device with laser |
| US7847953B2 (en) * | 2005-03-02 | 2010-12-07 | Japan Science And Technology Agency | Homodyne laser interferometer probe and displacement measurement system using the same |
| CN101943569A (en) * | 2010-08-04 | 2011-01-12 | 马军 | Method and device thereof for testing deformation of steel wire in wire rope strand |
-
2012
- 2012-02-11 CN CN2012100299847A patent/CN102589444A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7847953B2 (en) * | 2005-03-02 | 2010-12-07 | Japan Science And Technology Agency | Homodyne laser interferometer probe and displacement measurement system using the same |
| CN200989889Y (en) * | 2006-12-29 | 2007-12-12 | 西南大学 | Metal wire expansion coefficient investigating experimental device |
| CN201575793U (en) * | 2009-05-12 | 2010-09-08 | 强晓明 | Optical lever device with laser |
| CN101943569A (en) * | 2010-08-04 | 2011-01-12 | 马军 | Method and device thereof for testing deformation of steel wire in wire rope strand |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630075A (en) * | 2012-08-22 | 2014-03-12 | 上海工程技术大学 | Light beam small displacement measurement method and measurement device |
| CN103630075B (en) * | 2012-08-22 | 2016-07-06 | 上海工程技术大学 | A kind of micro-displacement measurement method of light beam and measurement device |
| CN105953905A (en) * | 2016-04-21 | 2016-09-21 | 大连理工大学 | Transient micro-vibration measurement device and method based on prism refracting signal amplification |
| CN105953905B (en) * | 2016-04-21 | 2019-01-08 | 大连理工大学 | A kind of micro- vibration measuring equipment of transient state and method based on the amplification of refraction by prism signal |
| CN113211192A (en) * | 2021-05-13 | 2021-08-06 | 成都大学 | Calibrating device for geometric error of machine tool and corner positioning error of rotary table |
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Application publication date: 20120718 |