SU168463A1 - - Google Patents

Info

Publication number
SU168463A1
SU168463A1 SU871825A SU871825A SU168463A1 SU 168463 A1 SU168463 A1 SU 168463A1 SU 871825 A SU871825 A SU 871825A SU 871825 A SU871825 A SU 871825A SU 168463 A1 SU168463 A1 SU 168463A1
Authority
SU
USSR - Soviet Union
Prior art keywords
reading
disk
screen
plane
head
Prior art date
Application number
SU871825A
Other languages
English (en)
Russian (ru)
Publication of SU168463A1 publication Critical patent/SU168463A1/ru

Links

SU871825A SU168463A1 (2)

Publications (1)

Publication Number Publication Date
SU168463A1 true SU168463A1 (2)

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804530A (en) * 1971-09-24 1974-04-16 Mettler Instrumente Ag Optical interpolation device including a counter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804530A (en) * 1971-09-24 1974-04-16 Mettler Instrumente Ag Optical interpolation device including a counter

Similar Documents

Publication Publication Date Title
US2571937A (en) Interferometer with right-angle reflector surfaces at end of each divided beam
US5949548A (en) Height sensing measurement device
EP0228408A1 (en) An instrument for measuring the topography of a surface
CN109520446A (zh) 一种高速回转轴系动态倾角误差的测量方法
US2880644A (en) Alignement interferometer
JPH0743110A (ja) 二段検出式非接触位置決め装置
SU168463A1 (2)
US1875665A (en) Support for optical micrometers
US3224323A (en) Interferometric optical angle measuring device
JP3439803B2 (ja) 対物レンズの焦点から物体のずれ又は位置変化を検出する方法及び装置
US5142146A (en) High-accuracy position comparator using 2 dimensional grating
US3347130A (en) Optical measuring instruments
RU2650432C1 (ru) Трёхкоординатный фотоэлектрический автоколлиматор
WO1991016602A1 (en) Improvements relating to optical measuring systems
US3453441A (en) Radiation sensitive digital measuring apparatus
RU2384812C1 (ru) Автоколлиматор для измерения угла скручивания
US2497981A (en) Microscopic vernier reader
US3433571A (en) Focal plane micrometer for reading the scales of engineering instruments
US2709944A (en) Apparatus for accurately locating a reflecting object and for measuring its dimensions
US3374046A (en) Reading microscope with interpolation prism
US3238838A (en) Viewing and illuminating device
CN212378715U (zh) 测角仪
US2911877A (en) Geodetical instruments
CN109579736A (zh) 精密工件的圆柱度非接触式测量装置及方法
US536493A (en) District of