DE2244985A1 - Anzeigevorrichtung - Google Patents
AnzeigevorrichtungInfo
- Publication number
- DE2244985A1 DE2244985A1 DE19722244985 DE2244985A DE2244985A1 DE 2244985 A1 DE2244985 A1 DE 2244985A1 DE 19722244985 DE19722244985 DE 19722244985 DE 2244985 A DE2244985 A DE 2244985A DE 2244985 A1 DE2244985 A1 DE 2244985A1
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- plates
- display device
- sensing capacitor
- amplifier
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims description 34
- 230000001788 irregular Effects 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims 1
- 230000010355 oscillation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
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)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Fire-Detection Mechanisms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2874871A IT938824B (it) | 1971-09-16 | 1971-09-16 | Rivelat ore esterno della presenza di un fluido in condutture o reci pienti |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2244985A1 true DE2244985A1 (de) | 1973-03-22 |
Family
ID=11224116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722244985 Pending DE2244985A1 (de) | 1971-09-16 | 1972-09-14 | Anzeigevorrichtung |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS4838796A (enExample) |
| CA (1) | CA970432A (enExample) |
| CH (1) | CH552212A (enExample) |
| DE (1) | DE2244985A1 (enExample) |
| FR (1) | FR2154075A5 (enExample) |
| GB (1) | GB1391858A (enExample) |
| IT (1) | IT938824B (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2282111A1 (fr) * | 1974-08-12 | 1976-03-12 | Ieram Sarl | Dispositif de detection de la presence de bulles |
| JPS5363289U (enExample) * | 1976-10-29 | 1978-05-29 | ||
| WO1980002600A1 (en) * | 1979-05-22 | 1980-11-27 | S Dahlqvist | A device for detecting and measuring small capacitance variations |
-
1971
- 1971-09-16 IT IT2874871A patent/IT938824B/it active
-
1972
- 1972-09-08 CA CA151,253A patent/CA970432A/en not_active Expired
- 1972-09-08 CH CH1322072A patent/CH552212A/xx not_active IP Right Cessation
- 1972-09-13 GB GB4248672A patent/GB1391858A/en not_active Expired
- 1972-09-14 JP JP9185972A patent/JPS4838796A/ja active Pending
- 1972-09-14 DE DE19722244985 patent/DE2244985A1/de active Pending
- 1972-09-15 FR FR7232882A patent/FR2154075A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH552212A (de) | 1974-07-31 |
| JPS4838796A (enExample) | 1973-06-07 |
| CA970432A (en) | 1975-07-01 |
| GB1391858A (en) | 1975-04-23 |
| FR2154075A5 (enExample) | 1973-05-04 |
| IT938824B (it) | 1973-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |