Optical-waveguide coil and method of making same

Details Optical-waveguide coil and method of making same Optical-waveguide coil and method of making same

1987-01-27

1988-09-06

Sikes, William L.

Inductor devices

Interlinked coils or windings

Coil surrounding linear conductor

350 9610, 350 9620, 350 9622, 350 9624, 350320, 336199, 336205, 336206, 336208, 29605, 29606, G02B 644, H01F 2730, H01F 706

Patent

active

047688564

ABSTRACT:
Optical-waveguide coils are used in rotation rate measuring instruments. To protect the optical-waveguide coil (1) from external influences, such as sound waves, pressure, and temperature changes, which may result in measurement errors, it is wound on a coil form (2) of soft elastomer under low tension. The coil unit so formed (1/2) is then placed in the annular groove (4) of a housing (3/5). Spacers at the coil form (2) position the coil unit (1/2) in the annular groove in such a way that the coil (1) is exactly in the middle of the annular groove (4). The remaining free space of the annular groove (4) is then filled with a sealing compound (6) in a vacuum. The sealing compound also spreads between the windings of the coil (1). It is preferably the same material as that from which the coil form (2) is made.

REFERENCES:
patent: 3462544 (1969-08-01), King
patent: 3487347 (1969-12-01), Lepianka
patent: 4173747 (1979-11-01), Grimes et al.
patent: 4442350 (1984-04-01), Rashleigh
patent: 4534222 (1985-08-01), Finch et al.
patent: 4613752 (1986-09-01), Davis
patent: 4699451 (1987-10-01), Mohr
patent: 4724316 (1988-02-01), Morton
Servais, "Silastic--The Heat Stable Silicone Rubber", Rubber Age, vol. 58, No. 5, 2/46 pp. 579-584.

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