JPS5551346A - Humidity measuring instrument - Google Patents
Humidity measuring instrumentInfo
- Publication number
- JPS5551346A JPS5551346A JP12482478A JP12482478A JPS5551346A JP S5551346 A JPS5551346 A JP S5551346A JP 12482478 A JP12482478 A JP 12482478A JP 12482478 A JP12482478 A JP 12482478A JP S5551346 A JPS5551346 A JP S5551346A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- cds
- measuring instrument
- humidity sensor
- light
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PURPOSE: To obtain a miniature and low-cost humidity measuring instrument which requires no filter, no monochromator and others by using the CdS the light absorption end of which is shifted to the longer wavelength side for the humidity sensor along with the LED used as the light source.
CONSTITUTION: The voltage is applied from power source 2 to CdS humidity sensor 1 the light absorption end of which is shifted to the longer wavelength side via CdSe and the solid solution (CdS:CdSe=4:6). And GaP green LED3 featuring the luminous output spectrum is provided in opposition to humidity sensor 1 as the light source of sensor 1 to irradiate the green light. At the same time, ammeter 4 is provided to measure the optical current of sensor 1 at the irradiateion time of the green color light, and both sensor 1 and LDE3 and stored into black box 5. With use of the LED and the humidity sensor comprising the photoconductive cell featuring a high reliability for a long period of time, a miniature and low-cost humidity measuring instrument is obtained without using any filter, monochromator and others.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12482478A JPS5551346A (en) | 1978-10-11 | 1978-10-11 | Humidity measuring instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12482478A JPS5551346A (en) | 1978-10-11 | 1978-10-11 | Humidity measuring instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5551346A true JPS5551346A (en) | 1980-04-15 |
Family
ID=14895006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12482478A Pending JPS5551346A (en) | 1978-10-11 | 1978-10-11 | Humidity measuring instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5551346A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11049740B1 (en) | 2019-12-05 | 2021-06-29 | Applied Materials, Inc. | Reconfigurable mainframe with replaceable interface plate |
-
1978
- 1978-10-11 JP JP12482478A patent/JPS5551346A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11049740B1 (en) | 2019-12-05 | 2021-06-29 | Applied Materials, Inc. | Reconfigurable mainframe with replaceable interface plate |
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