title: Laser interferometers for measuring displacements and determining object positions.
abstract: Laser interferometers for measuring lengths, gas refraction indexes, and laser wavelengths and for determining relative object positions have been developed. The instruments are based on a traditional principle of fringe-counting interferometers; for the determination of positions a reversed aperture interferometer sensitive to light-source displacements has been used.
authors.forename: V P
authors.initials: VP
authors.lastname: Koronkevitch
authors.forename: G A
authors.initials: GA
authors.lastname: Lenkova
authors.forename: A M
authors.initials: AM
authors.lastname: Tsherbatchenko
authors.forename: A I
authors.initials: AI
authors.lastname: Lokhmatov
authors.forename: V P
authors.initials: VP
authors.lastname: Kiryanov
authors.forename: B G
authors.initials: BG
authors.lastname: Matienko
authors.forename: V P
authors.initials: VP
authors.lastname: Golubkova