CN202511726U - Non-zero starting point vernier caliper - Google Patents
Non-zero starting point vernier caliper Download PDFInfo
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- CN202511726U CN202511726U CN2012201545064U CN201220154506U CN202511726U CN 202511726 U CN202511726 U CN 202511726U CN 2012201545064 U CN2012201545064 U CN 2012201545064U CN 201220154506 U CN201220154506 U CN 201220154506U CN 202511726 U CN202511726 U CN 202511726U
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- vernier caliper
- starting point
- vernier
- scale
- zero
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- 210000000078 claw Anatomy 0.000 claims abstract 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
本实用新型的非零起点游标卡尺涉及测量工具领域，特别涉及常用的游标卡尺。由于制造精度以及游标卡尺使用的磨损使两个测量量爪并拢时，游标的0与主尺的0没有对齐，有可能出现负零差，导致不熟悉的测量者读数错误。为克服游标卡尺起点刻度为零带来的读数不便，本实用新型将游标卡尺的主尺刻度向左移动一定的距离。技术方案是：将游标卡尺的主尺向左边移动5-10mm，当两个测量量爪靠拢时，此时度数作为起点值，然后再测量长度的数值，将测量值减去起点值就是真是长度。本刻度回归长度等于两坐标之差的本质，不再使用零差的概念；避免负零差带来的不便；游标卡尺量爪与游标的位置关系将不再要求很精确，可以提高制造的效率并减少废品率。
The utility model relates to a vernier caliper with a non-zero starting point and relates to the field of measuring tools, in particular to a commonly used vernier caliper. Due to the manufacturing precision and the wear of the vernier caliper, when the two measuring jaws are brought together, the 0 of the vernier is not aligned with the 0 of the main scale, and negative zero difference may occur, resulting in incorrect readings by unfamiliar measurers. In order to overcome the inconvenience of reading that the vernier caliper starting point scale is zero, the utility model moves the main scale scale of the vernier caliper to the left for a certain distance. The technical solution is: move the main ruler of the vernier caliper 5-10mm to the left, when the two measuring claws are close together, the degree is used as the starting point value at this time, and then the value of the length is measured, and the measured value is subtracted from the starting point value to get the real length. The scale regression length is equal to the essence of the difference between the two coordinates, and the concept of zero difference is no longer used; the inconvenience caused by negative zero difference is avoided; the positional relationship between the vernier caliper claw and the vernier is no longer required to be very precise, which can improve manufacturing efficiency and Reduce scrap rate.
Description
Technical field
The utility model relates to the survey instrument field, the vernier caliper of particularly using always in the student experimenting.
Background technology
Vernier caliper is a kind of relatively more accurate measuring appliance; Can measure diameter, the degree of depth of cylinder class, internal diameter of cylinder etc.; The unit length that relies on vernier is come more accurate tolerance length than main scale is short, and common have 10 calibration (short 0.1mm), 20 calibration (short 0.05mm), 50 calibration (weak point 0.02mm).The starting point of vernier caliper all is 0, and the reading that blocks after the length is exactly the numerical value of length.
Because when precision of making and vernier caliper use the wearing and tearing that cause after a period of time that the measuring jaw of two measurement external diameters is closed up; 0 of vernier does not align with 0 of main scale; 0 the right when vernier at main scale 0; Can read a numerical value as homodyne (tare weight of container during similar measurement quality) from vernier, measured value is deducted the actual value that homodyne is a length; When 0 the left side of vernier (vernier caliper wearing and tearing cause all be this result) at main scale 0; The homodyne of this moment is for negative; Can not directly read the vernier value as homodyne this moment; And after should the vernier reading value being deducted 1 millimeter as homodyne, the student often can make a mistake at this moment, causes the measurement result mistake.
Summary of the invention
For overcoming vernier caliper starting point scale is the zero reading inconvenience that brings, and the utility model is moved to the left certain distance with the main scale scale of vernier caliper.
The technical scheme that its technical matters that solves the utility model adopts is: the numerical value of length is exactly the difference of two coordinates in fact, and people are for convenience of calculation, and starting point is set to coordinate 0 usually; Whether starting point is 0 not change the size of length itself in fact, can be non-zero values with the start design of vernier caliper therefore, theoretically; Starting point can be a numerical value arbitrarily; Most of people are relatively more responsive to fractional value, and big numerical value is easy to obscure, and suggestion is moved 5-10mm with the main scale of vernier caliper to the left side; When two measurement measuring jaws are drawn close; This moment, reading was as threshold value (being equivalent to measure the tare weight of quality), and then measured the numerical value of length, with measured value deduct threshold value be exactly physical quantity really be length.
The beneficial effect of the utility model is: this scale method returns the essence that length equals the difference of two coordinates, can not re-use the notion of homodyne; The reading inconvenience that can avoid the negative zero difference band; The position relation of vernier caliper measuring jaw and vernier will no longer require very accurate, can improve the efficient of manufacturing and reduce rejection rate.
Description of drawings
Fig. 1 is a non-zero starting point vernier caliper synoptic diagram.
Wherein, 1, vernier, 2, main scale.
Embodiment
When two were measured measuring jaws and draw close, the scale of the zero rough alignment main scale 1 of vernier 1 was 10mm, and reading value at this moment is as threshold value, and then obtained the measurement of length value, with measured value deduct threshold value be exactly physical quantity really be length.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201545064U CN202511726U (en) | 2012-04-13 | 2012-04-13 | Non-zero starting point vernier caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201545064U CN202511726U (en) | 2012-04-13 | 2012-04-13 | Non-zero starting point vernier caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202511726U true CN202511726U (en) | 2012-10-31 |
Family
ID=47064206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201545064U Expired - Fee Related CN202511726U (en) | 2012-04-13 | 2012-04-13 | Non-zero starting point vernier caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202511726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989217A (en) * | 2019-11-19 | 2020-04-10 | Tcl华星光电技术有限公司 | Substrate and method for monitoring boundary position of film layer on substrate |
-
2012
- 2012-04-13 CN CN2012201545064U patent/CN202511726U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989217A (en) * | 2019-11-19 | 2020-04-10 | Tcl华星光电技术有限公司 | Substrate and method for monitoring boundary position of film layer on substrate |
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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: 20121031 Termination date: 20130413 |