FR2265092A1 - Measurement of depth of frost in the ground - uses measurement of relative permittivity using constant frequency signal - Google Patents
Measurement of depth of frost in the ground - uses measurement of relative permittivity using constant frequency signalInfo
- Publication number
- FR2265092A1 FR2265092A1 FR7409118A FR7409118A FR2265092A1 FR 2265092 A1 FR2265092 A1 FR 2265092A1 FR 7409118 A FR7409118 A FR 7409118A FR 7409118 A FR7409118 A FR 7409118A FR 2265092 A1 FR2265092 A1 FR 2265092A1
- Authority
- FR
- France
- Prior art keywords
- measurement
- ground
- bridge
- relative permittivity
- frost
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/221—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance by investigating the dielectric properties
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7409118A FR2265092A1 (en) | 1974-03-18 | 1974-03-18 | Measurement of depth of frost in the ground - uses measurement of relative permittivity using constant frequency signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7409118A FR2265092A1 (en) | 1974-03-18 | 1974-03-18 | Measurement of depth of frost in the ground - uses measurement of relative permittivity using constant frequency signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2265092A1 true FR2265092A1 (en) | 1975-10-17 |
| FR2265092B1 FR2265092B1 (en:Method) | 1976-10-08 |
Family
ID=9136465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7409118A Granted FR2265092A1 (en) | 1974-03-18 | 1974-03-18 | Measurement of depth of frost in the ground - uses measurement of relative permittivity using constant frequency signal |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2265092A1 (en:Method) |
-
1974
- 1974-03-18 FR FR7409118A patent/FR2265092A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2265092B1 (en:Method) | 1976-10-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |