JPH0410982B2 - - Google Patents
Info
- Publication number
- JPH0410982B2 JPH0410982B2 JP22403184A JP22403184A JPH0410982B2 JP H0410982 B2 JPH0410982 B2 JP H0410982B2 JP 22403184 A JP22403184 A JP 22403184A JP 22403184 A JP22403184 A JP 22403184A JP H0410982 B2 JPH0410982 B2 JP H0410982B2
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- humidity sensor
- humidity
- operational amplifier
- input side
- 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.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010356 wave oscillation Effects 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
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits
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 Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22403184A JPS61104246A (ja) | 1984-10-26 | 1984-10-26 | 湿度検出回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22403184A JPS61104246A (ja) | 1984-10-26 | 1984-10-26 | 湿度検出回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61104246A JPS61104246A (ja) | 1986-05-22 |
| JPH0410982B2 true JPH0410982B2 (US20080293856A1-20081127-C00150.png) | 1992-02-27 |
Family
ID=16807505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22403184A Granted JPS61104246A (ja) | 1984-10-26 | 1984-10-26 | 湿度検出回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61104246A (US20080293856A1-20081127-C00150.png) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6280545A (ja) * | 1985-10-04 | 1987-04-14 | Nittan Co Ltd | 環境異常検出回路 |
| US5065625A (en) * | 1989-05-12 | 1991-11-19 | Tdk Corporation | Humidity meter |
| DE19638204C1 (de) * | 1996-09-19 | 1998-01-15 | Bosch Gmbh Robert | Vorrichtung zur Luftgütemessung |
| CN104270114A (zh) * | 2014-09-03 | 2015-01-07 | 华南理工大学 | 一种采用小电容大电阻的多谐振荡器电路 |
| WO2017002221A1 (ja) * | 2015-06-30 | 2017-01-05 | 株式会社日立製作所 | 電流計測システムおよび方法 |
-
1984
- 1984-10-26 JP JP22403184A patent/JPS61104246A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61104246A (ja) | 1986-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6763726B2 (en) | Mechanical force sensor | |
| US7343802B2 (en) | Dynamic-quantity sensor | |
| KR950022036A (ko) | 동기 비디오 검출기용 제어발진기 | |
| JPH0410982B2 (US20080293856A1-20081127-C00150.png) | ||
| JPH0467368B2 (US20080293856A1-20081127-C00150.png) | ||
| JP2000151358A (ja) | 濾波装置 | |
| JP3874577B2 (ja) | 電圧制御発振回路 | |
| JPS622547Y2 (US20080293856A1-20081127-C00150.png) | ||
| JPH01209350A (ja) | 湿度検出回路 | |
| JPH0143271B2 (US20080293856A1-20081127-C00150.png) | ||
| JPS6111370B2 (US20080293856A1-20081127-C00150.png) | ||
| JPH089618Y2 (ja) | サーミスタ温度変換回路 | |
| JPS597771Y2 (ja) | 非安定マルチバイブレ−タ | |
| JPH06140874A (ja) | インピーダンス変換回路 | |
| JPS6119141B2 (US20080293856A1-20081127-C00150.png) | ||
| JPH025267B2 (US20080293856A1-20081127-C00150.png) | ||
| JPS647415U (US20080293856A1-20081127-C00150.png) | ||
| JPH1123313A (ja) | センサ装置 | |
| JPS61217751A (ja) | 湿度検出装置 | |
| JPS6333003A (ja) | オフセツト補正回路 | |
| JPH03137556A (ja) | 湿度センサ | |
| JPS61150404A (ja) | 振幅制御回路 | |
| JPH0119767B2 (US20080293856A1-20081127-C00150.png) | ||
| JPS6421516U (US20080293856A1-20081127-C00150.png) | ||
| JPS6077503A (ja) | 圧電発振回路 |
