SU48671A1 - Device for measuring the body of coil turns - Google Patents

Device for measuring the body of coil turns

Info

Publication number
SU48671A1
SU48671A1 SU162294A SU162294A SU48671A1 SU 48671 A1 SU48671 A1 SU 48671A1 SU 162294 A SU162294 A SU 162294A SU 162294 A SU162294 A SU 162294A SU 48671 A1 SU48671 A1 SU 48671A1
Authority
SU
USSR - Soviet Union
Prior art keywords
measuring
coil
turns
core
coil turns
Prior art date
Application number
SU162294A
Other languages
Russian (ru)
Inventor
И.А. Кравцов
Original Assignee
И.А. Кравцов
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 И.А. Кравцов filed Critical И.А. Кравцов
Priority to SU162294A priority Critical patent/SU48671A1/en
Application granted granted Critical
Publication of SU48671A1 publication Critical patent/SU48671A1/en

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  • Measurement Of Resistance Or Impedance (AREA)

Description

Уже известны устройства дл  определени  числа витков электрических катуш к путем измерени  величины их кажущегос  сопротивлени  при включении в цепь переменного тока заданной частоты , причем катушка надетг на железный сердечник известной формы и размеров .Devices are already known for determining the number of turns of electric coils to by measuring the magnitude of their apparent resistivity when an alternating current is connected to a given frequency, and the coil is mounted on an iron core of known shape and size.

В известных устройствах дл  этой цели часто примен етс  разомкнутый пр молинейный железный сердечник пр моугольного либо круглого сечени , причем дл  того, чтобы исследуема  катушка находилась по возмож 1ости в более равномерном магнитном поле, сердечник выполн ют удлиненным, так, чтобы длина его значительно превосходила высоту измер емой катушки.In known devices, an open rectangular iron core of rectangular or circular cross section is often used for this purpose, and in order for the test coil to be located in a more uniform magnetic field, possibly, the core is extended to measured coil.

Сущность изобретени , действие которого основано на том же принципе и в котором также использован разомкнутый и удлиненный сердечник, заключаетс  в том, что сердечнику придана U-образна  форма, котора  по указанию за вител  обладает р дбм преимуществ по сравнению с известной формой сердечника.The essence of the invention, which is based on the same principle and in which an open and elongated core is also used, is that the core is given a U-shape, which, according to the applicant's instructions, has a number of dbm advantages over the known core shape.

На чертеже изображена схема включени  прибора.The drawing shows the circuit of the device.

Магнитна  система / имеет подковог образную форму с удлиненными концами, благодар  которым создаетс  значительна  поверхность дл  потоков утечки. Благодар  этому получаетс  достаточна  величина и посто нство магнитной проводимости .The magnetic system / has a horseshoe-shaped shape with elongated ends, due to which a significant surface is created for leakage flows. Due to this, a sufficient magnitude and constant magnetic conductivity is obtained.

На магнитную систему помещаетс  испытуема  катушка 2, включаема  в источник переменного тока через амперметр 5 и вольтметр 4.A coil 2 is placed on the magnetic system, being connected to an AC source through an ammeter 5 and a voltmeter 4.

Чисдо витков катушки можетбыть измерено по показани м вольтметра и амперметра. Оно может быть вычислено по формуле:The number of turns of the coil can be measured by a voltmeter and ammeter. It can be calculated by the formula:

ГR

3570 3570

( + /)(+/-)

В ней V и / - -показани  вольтметра и амперметра; /-частота; X - магнитна  проводимость магнитной системы в см. л и / - активные сопротивлени  амперметра и катушки (дл  учета поправки).In it V and / - -voltmeter and ammeter; /-frequency; X is the magnetic conductivity of the magnetic system in cm. And / is the active resistances of the ammeter and the coil (to account for the correction).

Из формулы видно, что при посто нных величинах /, X, Л Ra R& число витков определ етс  подкоренной функцией из показаний вольтметра, благодар  чему относительна  ошибка в определении числа витков близка к квадратному корню из относительной ошибки показаний вольтметра.It can be seen from the formula that with constant values of I, X, L, Ra R & the number of turns is determined by the sub-root function from the voltmeter readings, so that the relative error in determining the number of turns is close to the square root of the relative error of the voltmeter reading.

При измерени х катушки о большим числом витков частота переменного тока, питающего установку, может быть повышена , например, до 500 герц и выше.When measuring a coil with a large number of turns, the frequency of the alternating current supplying the installation can be increased, for example, to 500 hertz and higher.

Предмет изобретени .The subject matter of the invention.

Устройство дл  измерени  числа витков катушек, состо щее из магаитногоA device for measuring the number of turns of the coils, consisting of

сердечника с открытой магнитной цепью и приборов, измер ющих импеданц катусики , отличающеес  тем, что, с целью получени  достаточной магнитной проводимости , в качестве указанной магнитной цепи примен етс  железный сердечник U-образной формы с удлиненными концами.an open magnetic circuit core; and devices measuring impedance katusiki, characterized in that, in order to obtain sufficient magnetic conductivity, an iron U-shaped core with elongated ends is used as said magnetic circuit.

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SU162294A 1935-02-04 1935-02-04 Device for measuring the body of coil turns SU48671A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU162294A SU48671A1 (en) 1935-02-04 1935-02-04 Device for measuring the body of coil turns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU162294A SU48671A1 (en) 1935-02-04 1935-02-04 Device for measuring the body of coil turns

Publications (1)

Publication Number Publication Date
SU48671A1 true SU48671A1 (en) 1936-08-31

Family

ID=48361599

Family Applications (1)

Application Number Title Priority Date Filing Date
SU162294A SU48671A1 (en) 1935-02-04 1935-02-04 Device for measuring the body of coil turns

Country Status (1)

Country Link
SU (1) SU48671A1 (en)

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