US4801862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for measuring complex dielectric constant or complex magnetic constant of materials in three-dimensional directions
Assignee: New Oji Paper Co Ltd
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Filing: 1987-02-24
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Granted: 1989-01-31
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Expires: 2007-02-24
Abstract
Abstract Method for measuring complex dielectric or magnetic constant of materials in three-dimensional directions comprising the steps of: inserting a specimen held by a rotary holder into a slit which is provided in such a position corresponding to the antinode or belly portion of electric or magnetic field of a cavity resonator that the slit fully turns around the four-side walls of the cavity resonator in a plane perpendicular to the axis thereof to rotatably accommodate the holder about the axis; measuring the respective resonant frequencies f1 and f2 and the respective Q-values Q1 and Q2 of the cavity resonator before and after inserting said specimen into the split; and calculating the complex dielectric or magnetic constant for each of some rotation angles of the holder and each of some insertion dispositions of the specimen to the holder.
Inventors
- 👤 Shigeyoshi Osaki
- 👤 Kiyokazu Sakai
- 👤 Kimiyoshi Uranishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:11
CPC Classifications
G; G01; G01N; G01N22/00; G01R; G01R27/00; G01R27/02; G01R27/26; G01R27/2617; G01R27/2635; G01R27/2658
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
170 words
Method for measuring complex dielectric constant of materials in three-dimensional directions comprising the steps of; inserting a specimen held by a rotary holder into a slit which is provided in such a position corresponding to the antinode or belly portion of electric field of a cavity resonator that the slit fully turns around the four-side walls of the cavity resonator in a plane perpendicular to the axis thereof to rotatably accommodate the holder about the axis; measuring the respective resonant frequencies f 1 and f 2 and the respective Q-values Q 1 and Q 2 of the cavity resonator before and after inserting said specimen into the slit; and calculating complex dielectric constant ε'-jε" from equations ##EQU25## for each of some rotation angles of the holder and each of some insertion dispositions of the specimen to the holder when setting up constant A 1 in accordance with the configuration and dimension of the cavity resonator, the oscillation mode, and the configuration and position of the specimen to the cavity resonator.
Claim 2
Dependent Claim
170 words
Method for measuring complex dielectric constant of materials in three-dimensional directions comprising the steps of; inserting a specimen held by a rotary holder into a slit which is provided in such a position corresponding to the antinode or belly portion of electric field of a cavity resonator that the slit fully turns around the four-side walls of the cavity resonator in a plane perpendicular to the axis thereof to rotatably accommodate the holder about the axis; measuring the respective resonant frequencies f 1 and f 2 and the respective Q-values Q 1 and Q 2 of the cavity resonator before and after inserting said specimen into the slit; and calculating complex dielectric constant ε'-jε" from equations ##EQU25## for each of some rotation angles of the holder and each of some insertion dispositions of the specimen to the holder when setting up constant A 1 in accordance with the configuration and dimension of the cavity resonator, the oscillation mode, and the configuration and position of the specimen to the cavity resonator.
Claim 3
Dependent Claim
181 words
Method for measuring complex magnetic constant of materials in three-dimensional directions comprising the sequential steps of; inserting specimen held by a rotary holder into a slit which is provided in such a position corresponding to the antinode, or belly portion of magnetic field inside of a cavity resonator that the slit fully turns around the four-side walls of the cavity resonator in a plane perpendicular to the axis thereof to rotatably accommodate the holder about the axis; measuring the respective resonant frequencies f 1 and f 2 , and the respective Q-values Q 1 and Q 2 of the cavity resonator before and after inserting said specimen into the slit; and calculating complex magnetic constant, ε' and ε" of objective material from equations ##EQU26## for each of some rotation angles of the holder, and each of some insertion dispositions of the specimen to the holder, using coefficient A 2 which is dependent on the configuration and dimension of the cavity resonator, the oscillation mode, the configuration of the ofjective specimen, and the position of inserting said specimen into said cavity resonator.
Claim 4
Dependent Claim
181 words
Method for measuring complex magnetic constant of materials in three-dimensional directions comprising the sequential steps of; inserting specimen held by a rotary holder into a slit which is provided in such a position corresponding to the antinode, or belly portion of magnetic field inside of a cavity resonator that the slit fully turns around the four-side walls of the cavity resonator in a plane perpendicular to the axis thereof to rotatably accommodate the holder about the axis; measuring the respective resonant frequencies f 1 and f 2 , and the respective Q-values Q 1 and Q 2 of the cavity resonator before and after inserting said specimen into the slit; and calculating complex magnetic constant, ε' and ε" of objective material from equations ##EQU26## for each of some rotation angles of the holder, and each of some insertion dispositions of the specimen to the holder, using coefficient A 2 which is dependent on the configuration and dimension of the cavity resonator, the oscillation mode, the configuration of the ofjective specimen, and the position of inserting said specimen into said cavity resonator.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-31 | 1992-08-01 | 1993-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-31 | 1996-08-01 | 1997-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-31 | 2000-08-01 | 2001-01-31 | $7700.00 | Window Closed / Lapsed |