JIS-B-7507-1993-R2003-ENG.pdf
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1、 JIS B*7507 93 = 4933608 0539b30 LbT JAPANESE INDUSTRIAL STANDARD JIS B 7507-1993 Vernier, dial and digital callipers October,1996 ERRATA Page 14 Informative reference 2 Table 1 In heading of columns 2 and 3 replace “Scale internals .-” with : “Scale intervals,-” T Remarks:This errata is for correct
2、ing the 1st and 2nd editions of this Standard. Japanese Standards Association Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:28:38 MDTNo reproduction or networking permitted without lic
3、ense from IHS -,-,- JIS B*7507 93 4933bO 05L70b 581 = JIS JAPANESE INDUSTRIAL STANDARD Vernier, dial and digital callipers L Translated and Published bY Japanese Standards Association UDC 531.714 Printed in Japan 9 s Copyright Japanese Standards Association Provided by IHS under license with JSALice
4、nsee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:28:38 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*7507 93 4933b08 0539707 418 In the event of any doubt arising, the original Standard in Japanese is to be final authority. Copyright
5、Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:28:38 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*7507 93 W 4933b08 0519708 354 M UDC 531.714 JAPANESE INDUSTR
6、IAL STANDARD J I S Vernier, dial and digital callipers B 7507-1993 1. Scope This Japanese Industrial Standard specifies vernier callipers of 1000 mm or under in maximum measuring length, among those for general use which measure the external dimensions and internal dimensions to 0.1 mm, 0.05 mm, 0.0
7、2 mm or 0.01 mm in scale intervals, minimum indicating quantities or minimum reading values (hereafter, referred to as “vernier callipers“.). Remarks 1. The standards cited in this Standard are as given in the follow- ing: JIS B 7506 Gauge blocks JIS G 4303 JIS G 4401 JIS 2 8103 Stainless steel bars
8、 Carbon tool steels Glossary of terms used in instrumentation 2. The International standards corresponding to this Standard are as given in the following: IS0 3599 IS0 6906 Vernier callipers reading to 0.1 and 0.05 mm Vernier callipers reading to 0.02 mm 2. Definitions ance with JIS Z 8103, and othe
9、rs are in accordance with the following: For the purposes of this Standard, main definitions are in accord- vernier callipers between each measuring faces with the beam scale and vernier scale or dial scale, by sliding a slider which has jaws with measuring faces parallel to those on the beam along
10、the beam, which provides jaws with measuring faces for external measurement and internal measurement at one end, or with electron- ics type digital indication. A measuring instrument capable of reading a distance vernier scale obtained by dividing the scale of (n-1) of the beam scale into equal part
11、s of n or E. This is also called sub-scde. dial scale the travelling amount of the slider mechanically by gears or the like. A scale for reading the further subdivided beam scale, which is 2 A circular plate scale for reading by a rotary pointer, magnifying electronics type digital indication A nume
12、rical indication being expressed, by detecting the travelling amount of the slider on the basis of the beam and counting this by an electronics circuit. instrumental error the reading of the vernier calliper. A value subtracted the true value to be indicated from Nomenclature The nomenclature of the
13、 main parts of the vernier callipers shall be in accordance with Figs. 1, 2, 3 and 4. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:28:38 MDTNo reproduction or networking permitted wit
14、hout license from IHS -,-,- J I S BU7507 93 4933608 0539709 290 2 B 7507-1993 Fig. 1. Vernier callipers Type M Jaws for internai measurement Faces for internal measurement - Clamping s c r e w 1111111111 I, ), Faces for external Y measurement Fig. 2. Vernier callipers Type CM Slider Faces for extern
15、d measurement Faces for internal measurement Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:28:38 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*7507
16、93 4933608 0519710 TO2 W 3 B 7507-1993 Fig. 3. That of pointer reading Fig. 4. That of electronics type digital indication Beam scale P m r u Dialscale U Remarks: These Figures are those for indicating the nomenclature only, and shall not be those for indicating the standard of the shapes and constr
17、uction. Types The types of the vernier callipers shall be as given in the following: Vernier callipers Type M A vernier callipers having independent jaws for internal measurement from jaws for external measurement in construction, equipped with or without fine adjustment clamp. For that of 300 mm or
18、 under in maximum measuring length, the depth-measuring blade for depth measure- ment may be provided. Vernier callipers type CM A vernier calliper having faces for external meas- urement and faces for internal measurement on the same jaws in construction, equipped with or without fine adjustment cl
19、amp. As to the types of (1) and (21, the reading mechanisms are classified into three types of reading respectively by the beam scale and vernier scale, by the beam scale, and dial scale and pointer, and by the electronics type digital indication. Maximum measuring lengths The maximum measuring leng
20、ths of the ver- nier callipers shall be 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 400 mm, 450 mm, 500 mm, 600 mm and 1000 mm, and those of type M with fine adjustment clamp should preferably be of 130 mm, 180 mm, 230 mm, 280 mm, 400 mm, 450 mm, 500 mm, 600 mm and 1000 mm. 6, Performances 6.1 strumenta
21、l errors of the vernier callipers shall be in accordance with Table 1. Instrumental errors of vernier callipers The permissible values of the in- Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/
22、2007 00:28:38 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*7507 93 m 4933b08 05L97LL 949 m 50 or under 4 B 7507-1993 0.1 or 0.05 0.02 or 0.01 rt0.05 rt0.02 Table 1. Permissible values of instrumental errors of vernier callipers Over 50 to 100 or under Over 100 to
23、 200 or under Unit: mm Scale intervals, minimum indicating quantities or minimum reading values Measuring length rt0.06 t0.03 rt0.07 Over 200 to 300 or under Over 300 to 400 or under rt0.08 t0.04 kO.09 Over 400 to 500 or under Over 500 to 600 or under rto. 10 r10.05 &O. 11 Over 600 to 700 or under I
24、 +o. 12 I rt0.06 Over 800 to 900 or under Over 900 to 1000 or under Over 700 to 800 or under I ?O. 13 I +O. 14 rt0.07 +O. 15 Remarks 1. 2. The values of this Table shall be those at 20C. The permissible values shall include the measuring errors generated due to the flatness and parallelism of the me
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