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1、JIS B*7909 93 4933608 0533320 680 = JIS JAPANESE INDUSTRIAL STANDARD Theodolites JIS B 7909-lw3 Translated and Published bY Japanese Standards Association UDC 528.52.085.3 Printed in Japan 6 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/11111
2、11001, User=Wing, Bernie Not for Resale, 03/12/2007 01:54:55 MDTNo reproduction or networking permitted without license from IHS -,-,- In the event of any doubt arising, the original Standard in Japanese is to be final authority Errata for JIS (English edition) are printed in Stundurditation Journul
3、, published monthly by the Japanese Standards Association. Errata will be provided upon request, please contact: Business Department, Japanese Standards Association 41-24, Akasaka, Minato-ku, Tokyo, JAPAN 107 TEL. 03-3583-8002 FAX. 03-3583-0462 c Errata are also provided to subscribers of JIS (Engli
4、sh edition) in Monthly Infornufion. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:54:55 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS Bu7909 93 = 4933b0
5、8 0533322 453 D Dividing basis UDC 528.52.085.3 Applicable divisions A B C D - JAPANESE INDUSTRIAL STANDARD J I S Minimum reading value Theodolites B 7909-1993 2” or under Over 2” to 12” Over 12” to 30“ Direct reading or or under or under or direct presumptive reading 1 and reading 1 or presumptive
6、over reading 30” or under I. Scope This Japanese Industrial Standard specifies the theodolites to measure the horizontal angle and altitude angle. Remarks : The standard cited in this Standard is as follows : JIS B 7907 Tripod connections for optical surveying instrument 2. Classification and applic
7、able divisions The theodolites shall be classified into two types of that having an optical reading device (except magnifying glass) and that having an electronic reading device, and the applicable divisions shall be as given in Table 1. Table 1. Applicable divisions 3. Performances and measuring me
8、thods The performances and measuring methods shall be in accordance with Table 2. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:54:55 MDTNo reproduction or networking permitted without
9、 license from IHS -,-,- J I S B*7707 73 4733608 0533323 39T 0.5 mm or under 0.5 mm 0.7 mm or or under under 2 B 79091993 Table 2. Performances and measuring methods - No - 1 - 2 - 3 Measuring method Permissible values Item to be measured Performance Applicable divisions AlBlCID Ratio of diameter of
10、entrance pupil to diameter of exit pupil Adjust the focal point of the telescope on the infinity, place an object (length 1 ) near the objective, obtain the magnification ( / E ) by measuring its image (length E ) generated near the exit pupil by the dynameter, and determine by percentage of differe
11、nce from the nominal magnification relative to nominal magnification. Magnifi- :aion Zffective iperture If )bjective iesolving lower I5 % Dynameter Diameter of exit pupil Adjust the focal point of the telescope on the infinity, measure the diameter of the exit pupil by the dynameter, and determine b
12、y percentage of the difference between the value muiipiied by actually measured magnification and nominal diameter relative to the nominal diameter. Adjust the focal point on the test chart with black and white stripes of longitudinal, lateral and oblique in width corresponding to 3“. 3.5“ and 4.5“
13、in visual angle at a distance of 10 m or over, and determine by the minimum visual angle capable of discriminating all of the stripes in a circle having diameter in length between the stadia lines. A collimator may be used in stead of the test chart. f 10 % Visual angle 2apable of discriminating adj
14、acent lines betwen the stadia l i n e s 3.0“ or under 3.5 “ or under 3.5 “ or under Test chart Theodolite 4 leviation )n visual wis (this s also :alled :OIL nation ixis) by ocucsing ieading lalues in up md down iirections at xntral xsition of lair After it has been collimated on the infinity target
15、of the collimator, adjust the focal points to each target corresponding to 10 m , 5 m and 3 m, read out the central position of the hair at both positions of normal and reverse of the telescope, and consider 1/2 the difference there of to be the measured value. Further, when this equipment is not av
16、ailable, set the staffs on the line of collimator at the distance of 10 m. 5 m and 3 m as far as possible. and measure directly. At the distances of 10 m, 5 m and 3 m 0.3 mm or under n I l I ieading ralues in left md right iirections at xntral msition of iair At the distances of 10 rn. 5 m and 3 rn
17、I I I 0 . 3 rnrn or under 0.3 mrn or under Collimator Theodolite I I I Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:54:55 MDTNo reproduction or networking permitted without license fr
18、om IHS -,-,- 3 B 7909-1993 A Table 2. (continued) B C D Performance auracy k s i - ivity Uniform- ity of sensitivit Item to be measured ifference rtween the ieasured alue of istance by :adia and :tual istance ingle iecessary to lisplace he bubble by me scale nterval(2 mm) Sensitivity ?mor Measuring
19、method lace the staffs at the distances of n and 30 m or over from theodolit iody, measure the staff length (1) he ietween stadia lines at each positioi md take as the measured value thc Jercentage of value obtained from :alculated distance according to (lo( + addend) subtracted by actual iistance r
20、elative to actual distance. Turther, instead of staff, collimator nay be used. 30m 10m I Staffs Theodolite Place the theodolite body or bubbk tube on bubble tube testing device, measure the sensitivity for every graduation and define by the percentage of difference of their arithmetical mean value a
21、nd markei sensitivity relative to marked sensitivity. Theodolite A V Bubble tube testing device Define by the percentage of maximum difference between the sensitivity of each graduation according to Number 6 and the arithmetical mean value relative to arithmetical mean. Measuring instrument taff or
22、o h a t o r 3ubble tube esting device Bubble tube testing devia * 0.4 % f15 % 5 15 % Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:54:55 MDTNo reproduction or networking permitted with
23、out license from IHS -,-,- J I S BU7909 93 m 4933608 0533325 Lb2 m 4 B 79091993 Table 2. (continued) Permissible values Applicable divisions Item to be measured Measuring instrument Performance Measuring method A - 8“ or under B - 10” o under C - 10” o1 under Verti- cality on inner axi: in respecl t
24、o outer a x i s and paral- lelism on inner axi: in resped to outer axis inclination of longitudinal a x i s (calied also vertical axis) :awed by rotation of the inner ax2 md/or outer mis (1) Verticality of inner axis Fasten the outer axis and measure the inclination of longitudinal axis by the movem
25、ent of bubble in bubble tube with scale interval 10” or under when the longitudinal axir is made vertical by the rotation of inner axis. Measure at 4 positions in interval of 90” in clockwise and counterclockwise rotations and take the maximum of inclinations as the measured value. 12) Verticality o
26、f outer axis Fasten the inner axis and in the same manner as in (i), measure the inchation of longitudinal axis when it is made vertical by rotation of outer a x i s . 3ubble tube ,f 10” or inder in one cale interval 8” or under 10” o under 10” or under :3) Parallelism of innner a x i s in respect t
27、o outer axis Fasten the inner axis. make the longitudinal axis vertical as far as possible by rotation of outer axis, next fasten the outer axis and determine the inchation of longitudinal axis by rotating the inner axis in the same manner as in (1). 8” or under 10” 0 1 under 10” or under .1 2 b: 5:
28、 c leviation of iorizontal ingle by -eversal of elescope lace the theodolite body in the niddle of two collimators attached iorizontally face to face. collimate the ne of collimator by the telescope, iext reverse the telescope to collimate he other collimator. read out the leviation of these and tak
29、e 1/2 of his as the measured value. iect an- wlarity ln colcale disc Deviation on vernier scale zero point in respect to 180“ revolution of telescope Uhichever of c . d I and i, shall be the minimum reading value or under Accuracy of correction mechanism in reading mechanism of altitude scale :orrec
30、tio rror of iltitude xale Place the theodolite body of which longitudinal axis becomes approxi- mately vertical in respect to the collimator attached horizontally, collimate the collimator to read out the altitude scale, and next tilt the longitudinal a x i s by ? 2 (in longitu- dinal line direction
31、 in respect to the collimator). operate the altitude micro movement device. obtain the difference of reading of altitude scale at the time of the vertical by collimating the collimator again, and consider the maximum value to be the measured value. However, for that of manual correction mechanism. r
32、ead out the altitude scale after the correcting operation. 6“ or under - Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:54:55 MDTNo reproduction or networking permitted without license
33、from IHS -,-,- J I S BX7909 93 4933608 0533327 6 3 5 6 B 79091993 Table 2. (continued) No. - 16 4. Performance ccuracy )n ittaching if iltitude cale disc Item to be measured lveraii leviation on ltitude scale ero point and ltitude scale lisc Measuring method Place the theodolite body on the inspecti
34、on device equipped with three collimators which have been attached about 30” each in horizontal, positive angle and negative angle on the vertical plane, obtain the readings r, and 1 , of altitude scale when the horizontal collimator has been COU- mated, and readings re , 1 , and, r3, 1, when positi
35、ve angle and negative angle collimators have been collimated. and then calculate the index (zero point) error d of the altitude scale disc, altitude constant difference K and eccentricity E from the following formulae, and consider these to be the measured value. K=l K2-K3 I r,-1,+180” (or- 180”) (W
36、hen the indicated angle i s %“at the holizontal collimation) &=I 2 K, =rl +I, -360” (When the indicated angle is 0”at the hoiizontal collimation) K,=r,=l,-l8O0 (or-540) ! / Comator Theodolite Measuring instrument rhree :oiiimators Permissible values Applicable divisions - A - d .5” or under - K .O”
37、or under - E - - B - d 20” or under K 36” or under E 15” or under - C - d 30” or under K 60” or under E 30” or under D - d 60 or under K 120” or under E 60” or under Remarks 1. The measurement of No.11 applies to the theodolite equipped with optical reading device having micrometric device. 2. The m
38、easurement of No.12 applies to the theodolite equipped with optical reading device. 3. The measurement of No.15 applies to that having altitude scale correcting mechanism, 4. E of the measurement of No.16 applies to the case of the single side reading. Structure and functions The body and tripod sha
39、ll be capable of being connected easily and securely, and the shape and dimensions of the connection shall be in accordance with JIS B 7907. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007
40、01:54:55 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B+7909 93 m 4933608 0533328 97L m 7. B 7909-1993 5. Marking 5.1 Theodolite The theodolite shall be marked the following information on a part of the body by an indelible method. In addition, the containing box s
41、hall be marked the manufacturers name or abbreviation, and be accompanied with the performance list and accessories list, (1) Manufacturers name or abbreviation (2) Manufacturing number Performance list In the performance list, the following matter shall be stated. The minimum reading value (minimum
42、 marked value) of horizontal scale disc The minimum reading value (minimum marked value) of altitude scale disc Magnification of telescope Effective aperture of objective (mm) Minimum focal length (m) Sensitivity of main bubble tube Stadia constant (multiplier, addend) Copyright Japanese Standards A
43、ssociation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:54:55 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B+7909 93 4933608 0533327,808 W B 7909-1993 Edition 1 Japanese Text Established by
44、 Minister of International Trade and Industry Date of Establishment: 1977-12-01 Date of Revision: 1993-02-01 Date of Public Notice in Official Gazette: Investigated by: 1993-02-19 Japanese Industrial Standards Committee Divisional Council on Precision Machinery This English translation is published
45、by: Japanese Standards Association 1-24, Akasaka 4, Minato-ku, Tokyo 107 Japan O JSA, 1996 Printed in Tokyo by Hohbunsha Co., Ltd. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:54:55 MDTNo reproduction or networking permitted without license from IHS -,-,-