DE2221656A1 - Feuchtigkeitsmessgeraet - Google Patents
FeuchtigkeitsmessgeraetInfo
- Publication number
- DE2221656A1 DE2221656A1 DE19722221656 DE2221656A DE2221656A1 DE 2221656 A1 DE2221656 A1 DE 2221656A1 DE 19722221656 DE19722221656 DE 19722221656 DE 2221656 A DE2221656 A DE 2221656A DE 2221656 A1 DE2221656 A1 DE 2221656A1
- Authority
- DE
- Germany
- Prior art keywords
- core
- electrode layer
- dielectric
- moisture
- frame
- 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
- 239000004020 conductor Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 14
- 229920002678 cellulose Polymers 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 239000003989 dielectric material Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000012298 atmosphere Substances 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 88
- 239000000243 solution Substances 0.000 description 16
- 239000002904 solvent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000003973 paint Substances 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 6
- 125000004063 butyryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 6
- 239000001913 cellulose Substances 0.000 description 6
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229940081735 acetylcellulose Drugs 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 229920002301 cellulose acetate Polymers 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000012792 core layer Substances 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 150000008131 glucosides Chemical group 0.000 description 3
- 230000003301 hydrolyzing effect Effects 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 229920000881 Modified starch Polymers 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011243 crosslinked material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012799 electrically-conductive coating Substances 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 229920001249 ethyl cellulose Polymers 0.000 description 2
- 235000019325 ethyl cellulose Nutrition 0.000 description 2
- 229930182478 glucoside Natural products 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 235000019426 modified starch Nutrition 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 2
- 239000004627 regenerated cellulose Substances 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 description 1
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 1
- RPZANUYHRMRTTE-UHFFFAOYSA-N 2,3,4-trimethoxy-6-(methoxymethyl)-5-[3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxyoxane;1-[[3,4,5-tris(2-hydroxybutoxy)-6-[4,5,6-tris(2-hydroxybutoxy)-2-(2-hydroxybutoxymethyl)oxan-3-yl]oxyoxan-2-yl]methoxy]butan-2-ol Chemical compound COC1C(OC)C(OC)C(COC)OC1OC1C(OC)C(OC)C(OC)OC1COC.CCC(O)COC1C(OCC(O)CC)C(OCC(O)CC)C(COCC(O)CC)OC1OC1C(OCC(O)CC)C(OCC(O)CC)C(OCC(O)CC)OC1COCC(O)CC RPZANUYHRMRTTE-UHFFFAOYSA-N 0.000 description 1
- WWMIMRADNBGDHP-UHFFFAOYSA-N 2-hydroxyhexanedial Chemical compound O=CC(O)CCCC=O WWMIMRADNBGDHP-UHFFFAOYSA-N 0.000 description 1
- 229920008347 Cellulose acetate propionate Polymers 0.000 description 1
- DQEFEBPAPFSJLV-UHFFFAOYSA-N Cellulose propionate Chemical compound CCC(=O)OCC1OC(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C1OC1C(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C(COC(=O)CC)O1 DQEFEBPAPFSJLV-UHFFFAOYSA-N 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 108010076876 Keratins Proteins 0.000 description 1
- 102000011782 Keratins Human genes 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229920002494 Zein Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- UGZICOVULPINFH-UHFFFAOYSA-N acetic acid;butanoic acid Chemical compound CC(O)=O.CCCC(O)=O UGZICOVULPINFH-UHFFFAOYSA-N 0.000 description 1
- ASRPLWIDQZYBQK-UHFFFAOYSA-N acetic acid;pentanoic acid Chemical compound CC(O)=O.CCCCC(O)=O ASRPLWIDQZYBQK-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 229920001727 cellulose butyrate Polymers 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 229920006218 cellulose propionate Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical group 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- UUCRHBVDYVZSEO-UHFFFAOYSA-N formaldehyde;triazine Chemical compound O=C.C1=CN=NN=C1 UUCRHBVDYVZSEO-UHFFFAOYSA-N 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- VIJMMQUAJQEELS-UHFFFAOYSA-N n,n-bis(ethenyl)ethenamine Chemical compound C=CN(C=C)C=C VIJMMQUAJQEELS-UHFFFAOYSA-N 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000005019 zein Substances 0.000 description 1
- 229940093612 zein Drugs 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc 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
- G01N27/225—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 by using hygroscopic materials
-
- 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)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00140789A US3802268A (en) | 1971-05-06 | 1971-05-06 | Capacitance humidity sensing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2221656A1 true DE2221656A1 (de) | 1972-11-09 |
Family
ID=22492797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722221656 Pending DE2221656A1 (de) | 1971-05-06 | 1972-05-03 | Feuchtigkeitsmessgeraet |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3802268A (enExample) |
| AU (1) | AU460321B2 (enExample) |
| CA (1) | CA959287A (enExample) |
| DE (1) | DE2221656A1 (enExample) |
| FR (1) | FR2135320B1 (enExample) |
| GB (1) | GB1361581A (enExample) |
| IT (1) | IT957725B (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016102103A1 (de) * | 2014-12-22 | 2016-06-30 | Robert Bosch Gmbh | Sensor zur messung der kohlenstoffdioxidkonzentration in einem gasgemisch und verfahren zu seiner herstellung |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4164868A (en) * | 1972-10-12 | 1979-08-21 | Vaisala Oy | Capacitive humidity transducer |
| JPS5529774A (en) * | 1978-08-24 | 1980-03-03 | Shinei Kk | Relative humidity detector |
| US4419021A (en) * | 1980-02-04 | 1983-12-06 | Matsushita Electric Industrial Co., Ltd. | Multi-functional sensing or measuring system |
| US4552570A (en) * | 1980-05-02 | 1985-11-12 | Pall Corporation | Adsorbent fractionator with automatic cycle control and process |
| FR2498329A1 (fr) * | 1981-01-19 | 1982-07-23 | Commissariat Energie Atomique | Hygrometre capacitif a dielectrique mince et son procede de fabrication |
| US4429343A (en) | 1981-12-03 | 1984-01-31 | Leeds & Northrup Company | Humidity sensing element |
| US4431962A (en) * | 1982-03-11 | 1984-02-14 | Honeywell, Inc. | Capacitor monitoring by single resistor adjustment |
| DE3327159A1 (de) * | 1983-07-28 | 1985-02-07 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Sensor zur messung einer dampfkonzentration |
| US4603372A (en) * | 1984-11-05 | 1986-07-29 | Direction De La Meteorologie Du Ministere Des Transports | Method of fabricating a temperature or humidity sensor of the thin film type, and sensors obtained thereby |
| US4793182A (en) * | 1987-06-02 | 1988-12-27 | Djorup Robert Sonny | Constant temperature hygrometer |
| US4793181A (en) * | 1987-06-02 | 1988-12-27 | Djorup Robert Sonny | Constant temperature sorption hygrometer |
| US4965698A (en) * | 1989-09-27 | 1990-10-23 | Johnson Service Company | Capacitance humidity sensor |
| US5177662A (en) * | 1992-02-05 | 1993-01-05 | Johnson Service Company | Capacitance humidity sensor |
| US5345821A (en) * | 1993-01-15 | 1994-09-13 | A.I.R., Inc. | Relative humidity sensing apparatus |
| US5337605A (en) * | 1993-01-22 | 1994-08-16 | Johnson Service Company | Enclosure for humidity sensing element |
| WO1994028372A1 (en) * | 1993-05-25 | 1994-12-08 | Rosemount Inc. | Organic chemical sensor |
| US5408381A (en) * | 1994-04-28 | 1995-04-18 | Johnson Service Company | Capacitance humidity sensor |
| US5589289A (en) * | 1995-09-27 | 1996-12-31 | Motorola, Inc. | Carbon electrode materials for electrochemical cells and method of making same |
| US6210368B1 (en) * | 1998-04-30 | 2001-04-03 | Medtronic, Inc. | Reservoir volume sensors |
| US6222376B1 (en) | 1999-01-16 | 2001-04-24 | Honeywell International Inc. | Capacitive moisture detector and method of making the same |
| DE10016427C2 (de) * | 2000-04-01 | 2003-02-13 | Bosch Gmbh Robert | Sensor, insbesondere Feuchtesensor, und Verfahren zur Herstellung desselben |
| EP1178302B1 (en) * | 2000-07-03 | 2005-10-26 | Matsushita Electric Works, Ltd. | Capacitance type moisture sensor and method of producing the same |
| US6724612B2 (en) | 2002-07-09 | 2004-04-20 | Honeywell International Inc. | Relative humidity sensor with integrated signal conditioning |
| US6938482B2 (en) * | 2003-06-03 | 2005-09-06 | General Electric Co. | Humidity sensor element containing polyphenylsulfone |
| US20060144437A1 (en) * | 2004-12-29 | 2006-07-06 | Rain Bird Corporation | Capacitance-based moisture sensor and controller |
| US7836910B2 (en) * | 2004-12-29 | 2010-11-23 | Rain Bird Corporation | Soil moisture sensor and controller |
| US8303897B2 (en) | 2011-02-28 | 2012-11-06 | Colla Jeannine O | Capacitive sensor for organic chemicals comprising an elastomer and high dielectric materials with titanate |
| CN103344679A (zh) * | 2013-07-16 | 2013-10-09 | 西安电子科技大学 | 基于ltcc的无源lc湿度传感器 |
| FI127193B (en) | 2016-12-22 | 2018-01-31 | Vaisala Oyj | Procedure in connection with a radio probe and system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3350941A (en) * | 1965-05-20 | 1967-11-07 | Johnson Service Co | Humidity sensing element |
| US3315518A (en) * | 1966-02-07 | 1967-04-25 | Research Corp | Humidity sensing devices |
| US3582728A (en) * | 1969-03-06 | 1971-06-01 | Johnson Service Co | Capacitance humidity sensing element |
-
1971
- 1971-05-06 US US00140789A patent/US3802268A/en not_active Expired - Lifetime
-
1972
- 1972-04-25 CA CA140,540A patent/CA959287A/en not_active Expired
- 1972-04-27 AU AU41616/72A patent/AU460321B2/en not_active Expired
- 1972-05-03 DE DE19722221656 patent/DE2221656A1/de active Pending
- 1972-05-04 IT IT50032/72A patent/IT957725B/it active
- 1972-05-04 GB GB2088072A patent/GB1361581A/en not_active Expired
- 1972-05-05 FR FR7216085A patent/FR2135320B1/fr not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016102103A1 (de) * | 2014-12-22 | 2016-06-30 | Robert Bosch Gmbh | Sensor zur messung der kohlenstoffdioxidkonzentration in einem gasgemisch und verfahren zu seiner herstellung |
| CN107003263A (zh) * | 2014-12-22 | 2017-08-01 | 罗伯特·博世有限公司 | 用于测量气体混合物中的二氧化碳浓度的传感器及其制造方法 |
| US10690612B2 (en) | 2014-12-22 | 2020-06-23 | Robert Bosch Gmbh | Sensor for measuring the carbon dioxide concentration in a gas mixture, and method for manufacture thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| AU460321B2 (en) | 1975-04-24 |
| GB1361581A (en) | 1974-07-30 |
| IT957725B (it) | 1973-10-20 |
| CA959287A (en) | 1974-12-17 |
| FR2135320A1 (enExample) | 1972-12-15 |
| US3802268A (en) | 1974-04-09 |
| AU4161672A (en) | 1973-11-01 |
| FR2135320B1 (enExample) | 1976-01-16 |
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