SU1019925A2 - Device for measuring angular speed - Google Patents
Device for measuring angular speed Download PDFInfo
- Publication number
- SU1019925A2 SU1019925A2 SU813269555A SU3269555A SU1019925A2 SU 1019925 A2 SU1019925 A2 SU 1019925A2 SU 813269555 A SU813269555 A SU 813269555A SU 3269555 A SU3269555 A SU 3269555A SU 1019925 A2 SU1019925 A2 SU 1019925A2
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- angular speed
- measuring angular
- fiber
- optical fiber
- polarization
- Prior art date
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- Gyroscopes (AREA)
Description
:Изобретение относитс к измерительной технике и может быть использовано дл измерени угловой скорости вращени объектов.: The invention relates to a measurement technique and can be used to measure the angular velocity of rotation of objects.
Известно устройство дл измерени угловой скорости, содержащее ис точник когерентного излучени , волоконный световод, свернутый в многовиткоеое кольцо, устройства ввода и вывода оптического излучени , фазовый модул тор и фотоприемник, при этомфазовый модул тор расположен на участке световода, наход щемс на рассто нии, меньшем половины лины световода от одного из его входов в световод, а частота фазовой модул ции и ее индекс выбираютс из услови A device for measuring the angular velocity, containing a source of coherent radiation, an optical fiber rolled into a multi-ring, devices for inputting and outputting optical radiation, a phase modulator and a photodetector, is known; half of the fiber waveguide from one of its inputs to the fiber, and the frequency of the phase modulation and its index are chosen from
г л. 2С 1.1 -ll-где С - скорость света; L - длина световода-, п - показатель преломлени свеShl 2C 1.1 -ll-where C is the speed of light; L is the length of the optical fiber; n is the refractive index of the light S
товода ;a product;
CpJ, - амплитуда фазовой модул ции.CpJ, is the amplitude of phase modulation.
Недостатком известного устройства вл етс невысока точность .измерений , св занна с тем, что полезный сигнал такого устройства вл етс результатом интерференции; двух встречных пол ризованных волн, прошедших по волоконному световоду, а A disadvantage of the known device is the low accuracy of the measurements, due to the fact that the useful signal of such a device is the result of interference; two opposite polarized waves transmitted through the optical fiber, and
:D поэтому зависит не только от разницы : D therefore not only depends on the difference
UD набега фаз встречных волн, но и от UD raid phases of opposing waves, but also from
ю состо ний их пол ризаций, В свою their states of polarization, in their
йл очередь, состо ни пол ризаций, выход щих из волоконного световода волн, завис т от Псфаметров световода , подверженного случайным внешним воздействи м (температуры, давлени A turn, the states of polarization emanating from a fiber waveguide, depend on the Ps parameters of the fiber exposed to random external influences (temperature, pressure
и др.). Это приводит к нестабильном сти выходного сигнала устройства, что снижает его точность.and etc.). This leads to instability of the output signal of the device, which reduces its accuracy.
Цель изобретени - повь:шение точности - достигаетс тем, что посереЧ дине волоконного световода установлен пол ризационный модул тор.The purpose of the invention is to increase precision - by achieving a polarization modulator installed in the middle of the optical fiber.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813269555A SU1019925A2 (en) | 1981-04-03 | 1981-04-03 | Device for measuring angular speed |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813269555A SU1019925A2 (en) | 1981-04-03 | 1981-04-03 | Device for measuring angular speed |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU803658A Addition SU182987A1 (en) | ENDLESS PLANE DRIVE BELT |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1019925A2 true SU1019925A2 (en) | 1991-12-30 |
Family
ID=20951123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU813269555A SU1019925A2 (en) | 1981-04-03 | 1981-04-03 | Device for measuring angular speed |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1019925A2 (en) |
-
1981
- 1981-04-03 SU SU813269555A patent/SU1019925A2/en active
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