RU2007114826A - METHOD FOR MEASURING DIELECTRIC CONSTANT DIELECTRIC PRODUCT - Google Patents
METHOD FOR MEASURING DIELECTRIC CONSTANT DIELECTRIC PRODUCT Download PDFInfo
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- RU2007114826A RU2007114826A RU2007114826/28A RU2007114826A RU2007114826A RU 2007114826 A RU2007114826 A RU 2007114826A RU 2007114826/28 A RU2007114826/28 A RU 2007114826/28A RU 2007114826 A RU2007114826 A RU 2007114826A RU 2007114826 A RU2007114826 A RU 2007114826A
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- circuit
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Abstract
1. Способ измерения диэлектрической постоянной диэлектрического продукта по периоду колебаний электрического контура, образованного соединением индуктивности и емкостных датчиков, отличающийся тем, что к индуктивности попеременно подключают емкостный датчик с исследуемым продуктом и емкостный датчик с эталонным продуктом, при этом измеряют периоды свободных колебаний контура, который возбуждают электрическими импульсами, длительность которых менее четверти минимального измеряемого периода, а период их следования более двух максимальных измеряемых периодов.2. Способ по п. 1, отличающийся тем, что раздельно измеряют амплитуды положительной и отрицательной полуволн в одном периоде свободных колебаний контура и по измеренным амплитудам уточняют период колебаний контура по формулегде Т - уточненный период колебаний контура, Ti - измеренный период колебаний контура, А- амплитуда большей полуволны колебаний контура, А- амплитуда меньшей полуволны колебаний контура.3. Способ по пп.1 и 2, отличающийся тем, что диэлектрическую постоянную в исследуемом продукте определяют по квадрату отношения уточненного периода колебаний контура с емкостным датчиком, содержащим исследуемый продукт, к уточненному периоду колебаний контура с емкостным датчиком, содержащим эталонный продукт.1. A method of measuring the dielectric constant of a dielectric product over a period of oscillation of an electric circuit formed by connecting an inductance and capacitive sensors, characterized in that the capacitance sensor with the product being studied and the capacitive sensor with the reference product are alternately connected to the inductance, while the periods of free oscillations of the circuit are measured, which excite by electric pulses, the duration of which is less than a quarter of the minimum measured period, and the period of their passage is more than two max cial measured periodov.2. The method according to claim 1, characterized in that the amplitudes of the positive and negative half waves are separately measured in one period of free oscillations of the circuit, and the period of oscillations of the circuit is determined from the measured amplitudes by the formula: T is the adjusted period of oscillation of the circuit, Ti is the measured period of oscillation of the circuit, A is the amplitude the larger half-wave of the oscillations of the circuit, A is the amplitude of the smaller half-wave of the oscillations of the circuit. 3. The method according to claims 1 and 2, characterized in that the dielectric constant in the test product is determined by the square of the ratio of the specified period of oscillation of the circuit with a capacitive sensor containing the test product to the specified period of oscillation of the circuit with a capacitive sensor containing a reference product.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2007114826/28A RU2354980C2 (en) | 2007-04-19 | 2007-04-19 | Method of determining dielectric constant of dielectric product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2007114826/28A RU2354980C2 (en) | 2007-04-19 | 2007-04-19 | Method of determining dielectric constant of dielectric product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2007114826A true RU2007114826A (en) | 2008-10-27 |
| RU2354980C2 RU2354980C2 (en) | 2009-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2007114826/28A RU2354980C2 (en) | 2007-04-19 | 2007-04-19 | Method of determining dielectric constant of dielectric product |
Country Status (1)
| Country | Link |
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| RU (1) | RU2354980C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710963A (en) * | 2020-12-28 | 2021-04-27 | 哈尔滨工业大学（深圳） | Switching power supply fault detection method based on pulse response |
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2007
- 2007-04-19 RU RU2007114826/28A patent/RU2354980C2/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710963A (en) * | 2020-12-28 | 2021-04-27 | 哈尔滨工业大学（深圳） | Switching power supply fault detection method based on pulse response |
| CN112710963B (en) * | 2020-12-28 | 2023-10-13 | 哈尔滨工业大学（深圳） | Switching power supply fault detection method based on impulse response |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2354980C2 (en) | 2009-05-10 |
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| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20100420 |