F-Term-List

G01C19/00@Z;19/56-19/5783;19/64-19/72@Z

AA00
APPLICATIONS

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AA10

. Modes of transportation

. . Automobiles

. . Aircraft

. Rockets and missles

. Robot

. Optical equipment

. Others *

BB00
OBJECTIVES

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BB09

. Improvement of performance

. . Improvement of sensitivity

. . Reduction of noise

. . Stabilization

. . Expansion of dynamic ranges

. Compensation and correction

. . Zero point and drift

. . Temperature

BB11

BB12

BB13

BB14

BB15

BB17

BB20

. Improvement of composition

. . Simplification and solidification

. . Reduction of size or weight

. . Quality of materials

. . Ease of manufacutre

. Combinations with other types of sensors *

. Others *

G01C19/56-19/5783

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FORMS OF VIBRATING GYROSCOPES

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. Tuning fork types (i.e., including H-shaped configurations)

. . Orthogonal types

. Solid form

. . This place covers the subject matter for vibrating gyroscopes having a vibrator of a triangular pole.

. . This place covers the subject matter for vibrating gyroscopes having a vibrator of a square pole.

. . This places covers the subject matter for vibrating gyroscopes having a vibrator of a pole with five or more angles.

. . This place covers the subject matter for vibrating gyroscopes having a vibrator of a circular pole or a cylinder.

CC11

CC14

CC16

CC20

. Combinations

. Surface wave types

. JP.A.H02-218912

. Others *

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COMPOSITION OF VIBRATING GYROSCOPES

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. Detection means

. . Piezoelectricity

. . Electrostatic capacitance

. Driving means

. . Piezoelectricity

. . Electromagnetic induction

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CD13

CD20

. Signal processing circuits

. Supporting structures

. Others *

G01C19/64-19/72@Z

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FORMS OF OPTICAL GYROSCOPES

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. Optical fiber types

. . Phase modulation systems

. . Ring resonance system (i.e. passive types)

. Reflecting mirror types

. . Active types (e.g., ring laser types)

. . Passive types

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DD13

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. Substrate wave guide path types

. Forms with multiple detection loops

. Others *

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CONSTITUENT ELEMENTS OF OPTICAL GYROSCOPES

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DE04

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DE06

DE08

. Accordingly, a single mode laser diode or the like is employed.

. Spectral coupler

. . Half mirrors

. . Couplers

. . . Substrate waveguide path-type couplers

. Polarizers

DE11

DE12

DE13

DE14

DE18

. The guided light is diffracted by interaction with the surface acoustic wave. The angle of deviation is changed according to the frequency of the input RF signal. At this time, the frequency of the diffracted light is shift as much as the frequency of the input RF signal. Accordingly, this is used as a frequency shifter.

. . Optical gyroscopes with one optical modulator

. . Optical gyroscopes with two optical modulators

. . Optical gyroscopes with three or more optical modulators

. Optical phase shifters

DE21

DE23

DE25

DE26

DE27

DE28

DE30

. Photodetectors

. Optical integrated circuits

. Optical fibers

. . Single modes

. . Conservation of the the plane of polarization

. . Special structures

. Others *

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OPTICAL GYROSCOPE CIRCUIT ELEMENTS

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DF02

DF03

DF04

DF05

DF06

DF07

DF10

. Synchronization detection circuits

. Comparator circuits

. Frequency doublers and dividers

. Oscillator circuits

. Low-pass filters

. Frequency modulation circuits

. Phase modulation circuits

. Others *

2F105	GYROSCOPES
	G01C19/00 -19/72@Z