SU327420A1 - METHOD OF MEASURING THE PERMEABILITY OF MAGNETODIELECTRICS - Google Patents
METHOD OF MEASURING THE PERMEABILITY OF MAGNETODIELECTRICSInfo
- Publication number
- SU327420A1 SU327420A1 SU423075A SU423075A SU327420A1 SU 327420 A1 SU327420 A1 SU 327420A1 SU 423075 A SU423075 A SU 423075A SU 423075 A SU423075 A SU 423075A SU 327420 A1 SU327420 A1 SU 327420A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- permeability
- waveguide
- measuring
- magnetodielectrics
- magnetodielectric
- Prior art date
Links
- 230000035699 permeability Effects 0.000 title description 7
- 238000005259 measurement Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
Description
Известны способы измерени проницаемостёй магнитодиэлектриков в коаксиальной линии .Methods are known for measuring the permeability of magnetodielectrics in a coaxial line.
Однако в известных снособа. измерени возникают значительные трудности при измерении больших значений проницаемостей и увеличении частоты.However, in the famous snoz. Measurements have considerable difficulty in measuring large values of permeability and increasing frequency.
С целью обеспечени измерени проницаемостей на сантиметровых волнах по предлагаемому способу значени комплексных диэлектрических и магнитных проницаемостей испытуемого магнитодиэлектрика устанавливаютс из двух измерений в волноводах, при первом из которых используетс волновод из испытуемого магнитодиэлектрика и определ етс отношение модулей проницаемостей и разность углов потерь, а при втором измерении используетс металлический волновод, изнутри покрытый слоем испытуемого магнитодиэлектрика , и определ етс произведение модулей нроницаемостей и сумма углов потерь и из полученных соотношений определ ютс значени проницаемостей.In order to measure permeabilities at centimeter waves using the proposed method, the complex dielectric and magnetic permeabilities of the test magnetodielectric are determined from two measurements in the waveguides, the first of which uses a waveguide from the test magnetodielectric and determines the ratio of permeability modules and the difference of loss angles, and the second measurement a metal waveguide is used, covered inside with a layer of the tested magnetodielectric, and is determined by s nronitsaemostey modules and the sum of the loss angle and the obtained relations are determined by values of permeability.
На фиг. 1 по предлагаемому способу представлено сечение волновода круглого сечени ; на фиг. 2 - сечение металлического волновода , внутренн часть которого покрыта слоем диэлектрика.FIG. 1, the proposed method presents a section of a circular waveguide; in fig. 2 is a cross section of a metal waveguide, the inside of which is covered with a dielectric layer.
На первом этане измер ют отношени модуIJи разности углов потерь 9;j. -Т .On the first ethane, the ratios of the modeIJ and the difference of the loss angle are measured; 9; j. -T.
леиlei
В магнитодиэлектрике образуетс волноводA waveguide is formed in the magnetic dielectric.
круглого сечени (фиг. 1)г. Толщину стенкиround section (Fig. 1) g. Wall thickness
выбирают так, что поле полностью затухаетchoose so that the field fades completely
на ее прот жении.over it.
Волновод возбуждаетс волной ЕОЬ длинаThe waveguide is excited by an EOB wavelength.
которой и затухание амплитуды /Il напр женности нол на определенной длине по оси волновода 22-2) измер ютс в волноводе Ль По данным измерений вычисл етс продольное волновое числоwhich and the amplitude attenuation / Il of the zero intensity at a certain length along the axis of the waveguide 22-2) are measured in the waveguide L. According to the measurement data, the longitudinal wavenumber is calculated
/г, +/Ль/ g, + / l
/ч/ h
1С.2 1C.2
где /; where /;
. Е и 2. E and 2
напр Z2-Zleg Z2-Zl
женности электрического пол соответственноelectric field respectively
в точках 2| и 22.at points 2 | and 22.
Св зь мелчдуGood day
и hi определ етс соотношениемand hi is defined by
gii Дм (giI «11 )gii dm (giI «11)
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762328827A Addition SU594473A2 (en) | 1976-03-01 | 1976-03-01 | Elastic oscillation source |
Publications (1)
Publication Number | Publication Date |
---|---|
SU327420A1 true SU327420A1 (en) |
Family
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