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OPERATION
Axioskop 40
Carl Zeiss
Measuring lengths
Axioskop 40 FL
3-52
B 40-810 e 12/01
3.9
Measuring lengths
Measurement of lengths using the Axioskop 40 / 40 FL requires the following:
−
stage micrometer, positive 5 + 100/100 y, D = 0.17 mm as the specimen
−
eyepiece crossline micrometer 10:100, d = 26 mm in the eyepiece
An overview of available stage micrometers and eyepiece reticules is available in Chapter 1.
Before length measurement can be performed with the microscope, the micrometer or scale value of the
objective / eyepiece reticule combination must be determined. This scale value is exactly that distance in
the specimen that corresponds to one interval of the crossline micrometer used.
For calibration, align the scales of the stage micrometer and crossline micrometer parallel to each other
by turning the eyepiece, and make the zero line of both scales exactly congruent. If, for example, 99
increments (of 10 µm each) of the stage micrometer correspond to exactly 100 increments of the
crossline micrometer, as in Fig. 3-36, the resulting scale value k’ for the objective / eyepiece reticule
combination used (A-Plan 10x/0.25 and crossline micrometer 10:100) is
k' = x 10 µm = 9.9 µm
☞
The distance to be measured should be
≥
5 mm in the eyepiece field to keep the influence of
random measuring deviations as low as possible. Other measuring errors may occur if the
eyepiece has not been inserted into the tube as far as it will go.
99
100
Summary of Contents for Axioskop 40
Page 1: ...Operating Manual Axioskop 40 Axioskop 40 FL Routine microscope...
Page 14: ...INTRODUCTION Axioskop 40 Carl Zeiss Axioskop 40 FL 0 14 B 40 810 e 12 01...
Page 30: ...INSTRUMENT DESCRIPTION Axioskop 40 Carl Zeiss Axioskop 40 FL 1 16 B 40 810 e 12 01...
Page 77: ...Axioskop 40 OPERATION Axioskop 40 FL Carl Zeiss B 40 810 e 12 01 3 3...
Page 128: ...OPERATION Axioskop 40 Carl Zeiss Axioskop 40 FL 3 54 B 40 810 e 12 01...
Page 146: ...APPENDIX Axioskop 40 Carl Zeiss Axioskop 40 FL A 8 B 40 810 e 12 01...