CN101846486A - Large circular arc radius measuring instrument and measuring method - Google Patents
Large circular arc radius measuring instrument and measuring method Download PDFInfo
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- CN101846486A CN101846486A CN 201010190787 CN201010190787A CN101846486A CN 101846486 A CN101846486 A CN 101846486A CN 201010190787 CN201010190787 CN 201010190787 CN 201010190787 A CN201010190787 A CN 201010190787A CN 101846486 A CN101846486 A CN 101846486A
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- main scale
- circular arc
- vernier
- scale
- arc radius
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Abstract
The invention discloses a large circular arc radius measuring instrument and a measuring method, wherein the measuring instrument comprises a main scale; the head of the main scale is a main scale measuring head in a spherical shape; a T-shaped vernier is sleeved on the main scale, the vernier comprises a horizontal segment and a vertical segment, the vertical segment is positioned on the vertical bisector of the horizontal segment, and the vertical segment is sleeved outside the main scale and can slide relative to the main scale; and measuring feet are vertically arranged at both ends of the horizontal segment of the vernier relative to the horizontal segment, and the end part of each measuring foot is a vernier measuring head in a spherical shape. The invention has the advantages that through the sliding fit of the main scale and the vernier, the spherical measuring heads of the main scale and the vernier can well contact a measured circular arc, and the chord height of the measured circular arc is conveniently measured, thereby computing the circular arc radius according to a formula; the instrument has simple structure and easy production and manufacture, and the measuring method is simple and rapid.
Description
Technical field
The present invention relates to a kind of large circular arc radius measuring instrument and measuring method.
Background technology
It is the comparison of arc model that the now actual large circular arc radius that uses is measured what all adopt, can only judge measured circular arc whether in intended scope, and can not know arc radius numerical value.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art, the invention provides a kind of large circular arc radius measuring instrument and measuring method, apparatus structure simply, produce easily and make, measuring method is simple and efficient.
The technical solution adopted for the present invention to solve the technical problems is: a kind of large circular arc radius measuring instrument, comprise main scale, and described main scale head is the main scale gauge head, is shaped as sphere; Be with the vernier scale that is shaped as T shape on described main scale, described vernier scale comprises horizontal segment and vertical section, and vertical section is positioned on the perpendicular bisector of horizontal segment, and vertical section is enclosed within outside the main scale, and can slide with respect to main scale; Two ends at the vernier scale horizontal segment are vertically installed with the measurement pin with respect to horizontal segment, and the end of described measurement pin is the vernier scale gauge head, is shaped as sphere.
Described vernier scale is the liquid crystal vernier caliper, has LCD, is solidified with the circuit of computing formula function in described LCD, and described computing formula is
The present invention also provides a kind of method of utilizing large circular arc radius measuring instrument to measure large circular arc radius, comprises the steps:
The first step touches the surface measurements of measured circular arc with the sphere of vernier scale gauge head, and intercepting is chord length 2 fixedly
Second step, adjust main scale, make the main scale gauge head touch the same circular section of measured circular arc circular arc;
The 3rd step, read main scale with respect to the displacement number of division that vernier scale slides, measure fixing chord length the action of corresponding radian
The 4th step is with action
With known fixedly chord length 2
Bring formula into
, obtain the arc radius of surveying
Compared with prior art, good effect of the present invention is: by being slidingly matched of main scale and vernier scale, make the spheric probe of main scale and vernier scale can contact measured circular arc well, measure the action of measured circular arc easily, thereby calculate arc radius according to formula.Simultaneously, because the spheric probe of main scale and vernier scale is sphere, make the face contact or line contact a becoming contact of general measuring appliance, some contact specific surface contact or line contact when measuring arc surface is more accurate.
Description of drawings
The present invention will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a fundamental diagram of the present invention;
Fig. 2 is that the present invention does not have the front view that liquid crystal shows;
Fig. 3 is the front view of band liquid crystal display of the present invention;
Fig. 4 is the synoptic diagram that the present invention measures outer arc radius;
Fig. 5 is the synoptic diagram that the present invention measures inner arc radius.
Embodiment
A kind of large circular arc radius measuring instrument as shown in Figure 2, comprising: main scale 1, vernier scale 2, main scale gauge head 3, vernier scale gauge head 4, measure pin 6.
Main scale 1 is the ruler of a band scale, and its head is a main scale gauge head 3, is shaped as sphere, is used to contact the surface of measured circular arc.
In order when measuring, just in time to obtain measurement result, vernier scale 2 also can adopt existing liquid crystal vernier caliper, realize by in LCD, increasing the circuit that is solidified with the computing formula function, as shown in Figure 3: a kind of large circular arc radius measuring instrument, comprise: main scale 1, vernier scale 2, main scale gauge head 3, vernier scale gauge head 4, band computing function LCD 5, measure pin 6.Survey during measurement
Directly input to band computing function LCD 5, in band computing function LCD 5 inside according to formula:
(
For known), carry out computing, obtain the arc radius of surveying
, and by band computing function LCD 5 demonstration radius readings.
A kind of large circular arc radius measuring method comprises the steps:
The first step touches the surface measurements of measured circular arc with the sphere of vernier scale gauge head 4, intercepting fixedly chord length (length is 2
);
Second step, adjust main scale 1, make main scale gauge head 3 touch the same circular section of measured circular arc circular arc;
The 3rd step, read main scale with respect to the displacement number of division that vernier scale slides, measure fixedly chord length 2
The action of corresponding radian
The 4th step is with action
With known fixedly chord length 2
Bring formula into
, obtain the arc radius of surveying
Principle of work of the present invention as shown in Figure 1, (length is 2 by being with fixedly chord length
) vernier scale 2 and the same circular section of measured circular arc circular arc on 2 points that contact, determine fixedly chord length 2
By adjusting the gauge head of main scale 1, contact again, measure fixedly chord length 2 with the same circular section of measured circular arc circular arc
The action of corresponding radian
, utilize formula again:
, just can obtain the arc radius of surveying
The synoptic diagram that the present invention measures outer arc radius as shown in Figure 4, the synoptic diagram of measuring inner arc radius is as shown in Figure 5.
Claims (3)
1. a large circular arc radius measuring instrument comprises main scale, it is characterized in that: described main scale head is the main scale gauge head, is shaped as sphere; Be with the vernier scale that is shaped as T shape on described main scale, described vernier scale comprises horizontal segment and vertical section, and vertical section is positioned on the perpendicular bisector of horizontal segment, and vertical section is enclosed within outside the main scale, and can slide with respect to main scale; Two ends at the vernier scale horizontal segment are vertically installed with the measurement pin with respect to horizontal segment, and the end of described measurement pin is the vernier scale gauge head, is shaped as sphere.
2. large circular arc radius measuring instrument according to claim 1 is characterized in that: described vernier scale is the liquid crystal vernier caliper, has LCD, is solidified with the circuit of computing formula function in described LCD, and described computing formula is
3. a method of utilizing the described large circular arc radius measuring instrument of claim 1 to measure large circular arc radius is characterized in that: comprise the steps:
The first step touches the surface measurements of measured circular arc with the sphere of vernier scale gauge head, and intercepting is chord length 2 fixedly
Second step, adjust main scale, make the main scale gauge head touch the same circular section of measured circular arc circular arc;
The 3rd step, read main scale with respect to the displacement number of division that vernier scale slides, measure fixing chord length the action of corresponding radian
The 4th step is with action
With known fixedly chord length 2
Bring formula into
, obtain the arc radius of surveying
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010190787 CN101846486A (en) | 2010-06-03 | 2010-06-03 | Large circular arc radius measuring instrument and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010190787 CN101846486A (en) | 2010-06-03 | 2010-06-03 | Large circular arc radius measuring instrument and measuring method |
Publications (1)
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|---|---|
| CN101846486A true CN101846486A (en) | 2010-09-29 |
Family
ID=42771187
Family Applications (1)
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|---|---|---|---|
| CN 201010190787 Pending CN101846486A (en) | 2010-06-03 | 2010-06-03 | Large circular arc radius measuring instrument and measuring method |
Country Status (1)
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226680A (en) * | 2011-04-09 | 2011-10-26 | 中天建设集团有限公司中山分公司 | Bend steel bar inner arc radius measuring pair ruler |
| CN103884256A (en) * | 2014-04-01 | 2014-06-25 | 涂振仲 | Diameter measurement ruler |
| CN104236430A (en) * | 2014-08-04 | 2014-12-24 | 上海建科工程咨询有限公司 | Shield tunnel section curvature radius testing device and application method thereof |
| CN105318807A (en) * | 2014-06-05 | 2016-02-10 | 江苏华阳金属管件有限公司 | Circular steel pipe diameter measuring tool |
| CN107289851A (en) * | 2016-03-31 | 2017-10-24 | 中国二十冶集团有限公司 | Extendible deformation measurement chi and its application method |
| CN107860300A (en) * | 2017-09-27 | 2018-03-30 | 中船黄埔文冲船舶有限公司 | A kind of arc radius measurement apparatus and measuring method |
| CN108225155A (en) * | 2018-02-01 | 2018-06-29 | 中车株洲电机有限公司 | Suitable for the measurement tooling and method of large scale radius |
| CN108278955A (en) * | 2018-05-03 | 2018-07-13 | 四川大学 | A method of measuring large cylinder internal diameter |
| CN108413840A (en) * | 2018-05-03 | 2018-08-17 | 四川大学 | A method of measuring big body diameter |
| CN108571923A (en) * | 2018-05-03 | 2018-09-25 | 四川大学 | A kind of device measuring big body diameter |
| CN108827117A (en) * | 2018-05-03 | 2018-11-16 | 四川大学 | A kind of device measuring large cylinder internal diameter |
| CN108955494A (en) * | 2018-09-03 | 2018-12-07 | 武汉建工集团股份有限公司 | A kind of portable radian measuring instrument |
| CN112504048A (en) * | 2020-10-30 | 2021-03-16 | 东方电气集团东方锅炉股份有限公司 | Device and method for measuring height and gradient of radial connecting pipe on regular curved surface |
| CN113237411A (en) * | 2021-05-20 | 2021-08-10 | 广东电网有限责任公司 | Power cable turning radius measuring tool and measuring method thereof |
| CN113295075A (en) * | 2021-05-21 | 2021-08-24 | 郭政 | Measuring system and method |
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| JPH1026502A (en) * | 1996-07-09 | 1998-01-27 | Kenjiro Nagai | Measuring device for diameter of circularly curved wall surface |
| CN2509555Y (en) * | 2001-12-04 | 2002-09-04 | 郑海波 | Slide calliper for measuring radius |
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| CN101451805A (en) * | 2007-11-28 | 2009-06-10 | 上海梅山钢铁股份有限公司 | High precision orthodrome radius measuring apparatus and measuring method thereof |
| CN201364125Y (en) * | 2008-12-03 | 2009-12-16 | 翟亚辉 | Arc inner circle radius measuring instrument |
| CN201724642U (en) * | 2010-06-03 | 2011-01-26 | 中铁隆昌铁路器材有限公司 | Orthodrome radius measuring instrument |
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2010
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1026502A (en) * | 1996-07-09 | 1998-01-27 | Kenjiro Nagai | Measuring device for diameter of circularly curved wall surface |
| CN2509555Y (en) * | 2001-12-04 | 2002-09-04 | 郑海波 | Slide calliper for measuring radius |
| CN2513074Y (en) * | 2001-12-25 | 2002-09-25 | 郑海波 | Multifunctional electronic digital display capplipers |
| JP2004138338A (en) * | 2002-10-18 | 2004-05-13 | Oi Seisakusho:Kk | Method of drying timber with high quality |
| CN101451805A (en) * | 2007-11-28 | 2009-06-10 | 上海梅山钢铁股份有限公司 | High precision orthodrome radius measuring apparatus and measuring method thereof |
| CN201177493Y (en) * | 2008-04-11 | 2009-01-07 | 广西玉柴机器股份有限公司 | Inspection tool for circle arc radius measurment |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226680A (en) * | 2011-04-09 | 2011-10-26 | 中天建设集团有限公司中山分公司 | Bend steel bar inner arc radius measuring pair ruler |
| CN103884256A (en) * | 2014-04-01 | 2014-06-25 | 涂振仲 | Diameter measurement ruler |
| CN105318807A (en) * | 2014-06-05 | 2016-02-10 | 江苏华阳金属管件有限公司 | Circular steel pipe diameter measuring tool |
| CN104236430A (en) * | 2014-08-04 | 2014-12-24 | 上海建科工程咨询有限公司 | Shield tunnel section curvature radius testing device and application method thereof |
| CN107289851A (en) * | 2016-03-31 | 2017-10-24 | 中国二十冶集团有限公司 | Extendible deformation measurement chi and its application method |
| CN107860300A (en) * | 2017-09-27 | 2018-03-30 | 中船黄埔文冲船舶有限公司 | A kind of arc radius measurement apparatus and measuring method |
| CN108225155A (en) * | 2018-02-01 | 2018-06-29 | 中车株洲电机有限公司 | Suitable for the measurement tooling and method of large scale radius |
| CN108413840A (en) * | 2018-05-03 | 2018-08-17 | 四川大学 | A method of measuring big body diameter |
| CN108278955A (en) * | 2018-05-03 | 2018-07-13 | 四川大学 | A method of measuring large cylinder internal diameter |
| CN108571923A (en) * | 2018-05-03 | 2018-09-25 | 四川大学 | A kind of device measuring big body diameter |
| CN108827117A (en) * | 2018-05-03 | 2018-11-16 | 四川大学 | A kind of device measuring large cylinder internal diameter |
| CN108278955B (en) * | 2018-05-03 | 2019-10-25 | 四川大学 | A method of measurement large cylinder internal diameter |
| CN108827117B (en) * | 2018-05-03 | 2019-10-25 | 四川大学 | A kind of device measuring large cylinder internal diameter |
| CN108413840B (en) * | 2018-05-03 | 2019-11-08 | 四川大学 | A method of measuring big body diameter |
| CN108955494A (en) * | 2018-09-03 | 2018-12-07 | 武汉建工集团股份有限公司 | A kind of portable radian measuring instrument |
| CN112504048A (en) * | 2020-10-30 | 2021-03-16 | 东方电气集团东方锅炉股份有限公司 | Device and method for measuring height and gradient of radial connecting pipe on regular curved surface |
| CN113237411A (en) * | 2021-05-20 | 2021-08-10 | 广东电网有限责任公司 | Power cable turning radius measuring tool and measuring method thereof |
| CN113295075A (en) * | 2021-05-21 | 2021-08-24 | 郭政 | Measuring system and method |
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Open date: 20100929 |