SU106425A1 - The method of measuring the magnetic susceptibility of substances and device for its implementation - Google Patents
The method of measuring the magnetic susceptibility of substances and device for its implementationInfo
- Publication number
- SU106425A1 SU106425A1 SU558063A SU558063A SU106425A1 SU 106425 A1 SU106425 A1 SU 106425A1 SU 558063 A SU558063 A SU 558063A SU 558063 A SU558063 A SU 558063A SU 106425 A1 SU106425 A1 SU 106425A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- substances
- magnetic susceptibility
- implementation
- measuring
- frequency
- Prior art date
Links
Landscapes
- Measuring Magnetic Variables (AREA)
Description
Дл измерени магнитной восприимчивости веществ по принципу потокосцеплени обычно используют магнитомодул ционные датчики, помещенные в поле источника вспомогательной частоты и охваченные автокомпенсационной обратной св зью по посто нной составл ющей пол .To measure the magnetic susceptibility of substances by the principle of flux coupling, magnetic modulation sensors are usually used, which are placed in the field of an auxiliary frequency source and covered by an autocompensation feedback over a constant field component.
Предлагаемое устройство отличаетс от известных устройств тем, что поле источника вспомогательной частоты направлено вдоль оси дагчика и введена дополнительна автокомпенсационна обратна св зь по частоте вспомогательного пол . Такое выполнение устройства позвол ет повысить его чувствительность и точность измерений.The proposed device differs from the known devices in that the source field of the auxiliary frequency is directed along the axis of the sensor and additional autocompensation feedback is introduced in the frequency of the auxiliary field. Such an embodiment of the device allows to increase its sensitivity and measurement accuracy.
На чертеже показана блок-схема предлагаемого устройства.The drawing shows a block diagram of the proposed device.
Задающий элемент устройства (катущка) / питаетс переменным током неизменной частоты со от генератора 3, которым модулируетс магнитное поле Земли. Воспринимающий элемент-магнитомодул ционный датчик 2 типа «второй гармоники, подмагничиваемый магнитным полем Земли, включен в измерительную схему. При насыщении ферромагнитного сердечника датчика 2 переменнымтоком частоты м, поступающим от генератора 4, в нем возникает составл юща потока индукции с частотой 2 со, котора вл етс функцией внещнего пол Я. На датчик 2 действует магнитное поле Земли //„ и переменное модулирующее поле fif величина которого характеризует степень магнитной восприимчивости исследуемого вещества. Поэтому при Нд Яуз сигнал на его выходе будет промодулирован частотой со . Этот сигнал после усилени и выпр млени в элементах 5 и б подаетс на сопротивление 7, наход щеес в цели обратной св зи. После выделени модулированного сигнала на сопроThe driver of the device (roller) / is supplied with alternating current of constant frequency from generator 3, which modulates the earth's magnetic field. The perceiving element-magnetically modulated second-harmonic type 2 sensor, which is magnetized by the earth's magnetic field, is included in the measuring circuit. When the ferromagnetic core of sensor 2 is saturated with a variable current frequency m, coming from generator 4, an induction flow component with a frequency of 2 s arises in it, which is a function of external field I. Sensor 2 acts on the Earth’s magnetic field // the value of which characterizes the degree of magnetic susceptibility of the test substance. Therefore, at Nd Yauz, the signal at its output will be modulated by the frequency ω. This signal, after amplification and rectification in elements 5 and b, is applied to resistance 7, which is the target of the feedback. After isolating the modulated signal
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU558063A SU106425A1 (en) | 1956-09-18 | 1956-09-18 | The method of measuring the magnetic susceptibility of substances and device for its implementation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU558063A SU106425A1 (en) | 1956-09-18 | 1956-09-18 | The method of measuring the magnetic susceptibility of substances and device for its implementation |
Publications (1)
Publication Number | Publication Date |
---|---|
SU106425A1 true SU106425A1 (en) | 1956-11-30 |
Family
ID=48379729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU558063A SU106425A1 (en) | 1956-09-18 | 1956-09-18 | The method of measuring the magnetic susceptibility of substances and device for its implementation |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU106425A1 (en) |
-
1956
- 1956-09-18 SU SU558063A patent/SU106425A1/en active
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