RU93005794A - DEVICE FOR MEASURING SPHERICAL HARMONIC COEFFICIENTS - Google Patents

DEVICE FOR MEASURING SPHERICAL HARMONIC COEFFICIENTS

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Publication number
RU93005794A
RU93005794A RU93005794/28A RU93005794A RU93005794A RU 93005794 A RU93005794 A RU 93005794A RU 93005794/28 A RU93005794/28 A RU 93005794/28A RU 93005794 A RU93005794 A RU 93005794A RU 93005794 A RU93005794 A RU 93005794A
Authority
RU
Russia
Prior art keywords
measuring
transducers
sectorial
coefficient
channel
Prior art date
Application number
RU93005794/28A
Other languages
Russian (ru)
Inventor
В.В. Сотников
Original Assignee
Марийский политехнический институт им.А.М.Горького
Filing date
Publication date
Application filed by Марийский политехнический институт им.А.М.Горького filed Critical Марийский политехнический институт им.А.М.Горького
Publication of RU93005794A publication Critical patent/RU93005794A/en

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Claims (1)

Устройство для измерения сферических гармонических коэффициентов g20, g22,h22соответственно, зональной X20 и секториальных X22 и Y22 квадрупольных сферических гармоник внешнего магнитного поля оборудования содержит восемь измерительных преобразователей точечного типа, усилители и сумматоры. Цель изобретения - повышение точности измерения. С этой целью магнитные центры преобразователей установлены по экватору координатной сферы и имеют сферические угловые координаты долготы соответственно
Figure 00000001
Figure 00000002
Figure 00000003
магнитная ось каждого преобразователя ориентирована по радиусу-вектору, проведенному из начала координат в точку установки этого преобразователя, при этом канал измерения коэффициента g20 зональной гармоники X20 выполнен с соотношением коэффициентов передачи по входам от измерительных преобразователей 1:1:1:1:1:1:1:1, канал измерения коэффициента g22 секториальной гармоники X22 выполнен с соотношением коэффициентов передачи по входам от измерительных преобразователей 1: -1:-1:1:1:-1:1, канал измерения коэффициента h22 секториальной гармоники Y22 выполнен с соотношением коэффициентов передачи по входам от измерительных преобразователей 1:1:-1:-1:1:1:-1:-1.A device for measuring spherical harmonic coefficients g 20 , g 22 , h 22, respectively, zonal X 20 and sectorial X 22 and Y 22 quadrupole spherical harmonics of the external magnetic field of the equipment contains eight point-type transducers, amplifiers and adders. The purpose of the invention is to improve the accuracy of measurement. To this end, the magnetic centers of the transducers are installed along the equator of the coordinate sphere and have spherical angular coordinates of longitude, respectively
Figure 00000001
Figure 00000002
Figure 00000003
the magnetic axis of each transducer is oriented along the radius vector drawn from the origin to the installation point of this transducer, while the channel for measuring the coefficient g 20 of the zonal harmonic X 20 is made with a ratio of transmission coefficients at the inputs from the transducers 1: 1: 1: 1: 1 : 1: 1: 1, the channel for measuring the coefficient g 22 of sectorial harmonics X 22 is made with the ratio of the transmission coefficients for the inputs from the measuring transducers 1: -1: -1: 1: 1: 1: -1: 1, the channel for measuring the coefficient h 22 for sectorial harmonics Y 22 issue The ratio of input transmission ratios from the transmitters is 1: 1: -1: -1: 1: 1: 1: -1: -1.
RU93005794/28A 1993-01-25 DEVICE FOR MEASURING SPHERICAL HARMONIC COEFFICIENTS RU93005794A (en)

Publications (1)

Publication Number Publication Date
RU93005794A true RU93005794A (en) 1996-12-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2661775C2 (en) * 2013-02-08 2018-07-19 Квэлкомм Инкорпорейтед Transmission of audio rendering signal in bitstream

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2661775C2 (en) * 2013-02-08 2018-07-19 Квэлкомм Инкорпорейтед Transmission of audio rendering signal in bitstream
US10178489B2 (en) 2013-02-08 2019-01-08 Qualcomm Incorporated Signaling audio rendering information in a bitstream

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