SU125903A1 - Magnetic field measurement method - Google Patents

Magnetic field measurement method

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Publication number
SU125903A1
SU125903A1 SU624401A SU624401A SU125903A1 SU 125903 A1 SU125903 A1 SU 125903A1 SU 624401 A SU624401 A SU 624401A SU 624401 A SU624401 A SU 624401A SU 125903 A1 SU125903 A1 SU 125903A1
Authority
SU
USSR - Soviet Union
Prior art keywords
magnetic field
measurement method
field measurement
polarizing
coil
Prior art date
Application number
SU624401A
Other languages
Russian (ru)
Inventor
А.Я. Ротштейн
Original Assignee
А.Я. Ротштейн
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by А.Я. Ротштейн filed Critical А.Я. Ротштейн
Priority to SU624401A priority Critical patent/SU125903A1/en
Application granted granted Critical
Publication of SU125903A1 publication Critical patent/SU125903A1/en

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Description

Недостатком известных способов измерени  магнитных поле, с помощью магнитометров, основанных на применении  дерного магнитного генератора,  вл етс  то, что при измерени х по этим способам не гарантируетс  исключение погрешности за счет вли ни  пол  рассе ни  пол ризующей катушки.A disadvantage of the known methods of measuring magnetic fields, using magnetometers, based on the use of a nuclear magnetic generator, is that when measuring by these methods, it is not possible to eliminate the error due to the influence of the scattering field of the polarizing coil.

Предлагаемый способ не имеет указанного недостатка. Достигаетс  это тем, что пол ризующую катушку питают переменным током низкой частоты, а частоту прецессии измер ют электронно-счетным частотомером , интервал счета которого равен периоду тока пол ризации.The proposed method does not have the specified disadvantage. This is achieved by the fact that the polarizing coil is supplied with alternating current of low frequency, and the precession frequency is measured by an electron-counting frequency meter, the counting interval of which is equal to the polarization current period.

Пол ризующа  катушка / .(см. чертеж) питаетс  переменным током низкой частоты, в результате чего  дра текущей через катушку жидкости будут пол ризоватьс  порци ми в противоположных направлени х. Однако, выход  из пол  пол ризующей катушки,  дра участков жидкости повернутс  по направлению магнитного пол  Земли еще перед фазирующими катушками 2, вызывающими прецессию. Скорость течени  жидкости и толщины труб подбираютс  такими, чтобы не было пропусков , т. е. таких промежутков времени, в которых отсутствовал бы сигнал в приемной катущке 3.The polarizing coil (see the drawing) is supplied with alternating current of low frequency, as a result of which the cores flowing through the coil of fluid will be polarized in portions in opposite directions. However, the exit from the polarizing coil, the cores of the fluid sections, is rotated in the direction of the Earth’s magnetic field ahead of the phasing coils 2, which cause precession. The flow rate and the thickness of the pipes are chosen so that there are no gaps, i.e., such periods of time in which there would be no signal in the receiving coil 3.

Поле рассе ни  складываетс  и вычитаетс  из пол  Земли соответ ственно при параллельном и непараллельном расположении. За полный период поле рассе ни  усреднитс  и будет полностью скомпенсировано.The scatter field is added and subtracted from the earth's floor, respectively, with a parallel and non-parallel arrangement. For the full period, the field is scattered averaged and will be fully compensated.

Применение счетного метода измерени  частоты прецессии и использование интервалов времени счета, равного одному периоду пол ризующего тока, обеспечивает исключение погрещности определени  напр женности пол  Земли за счет пол  рассе ни  пол ризующей катушки, так как за первые полпериода пол ризующего тока, частота прецессии увеличитс , а за вторые полпериода на столько же уменьшитс .The use of a counting method for measuring the precession frequency and the use of counting time intervals equal to one period of the polarizing current, makes it possible to exclude the error in determining the intensity of the earth's field due to the scattering field of the polarizing coil, since during the first half-period of the polarizing current over the second half period will decrease by the same amount.

SU624401A 1959-04-06 1959-04-06 Magnetic field measurement method SU125903A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU624401A SU125903A1 (en) 1959-04-06 1959-04-06 Magnetic field measurement method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU624401A SU125903A1 (en) 1959-04-06 1959-04-06 Magnetic field measurement method

Publications (1)

Publication Number Publication Date
SU125903A1 true SU125903A1 (en) 1959-11-30

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Country Link
SU (1) SU125903A1 (en)

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