Title:
ODOR SENSOR AND ODOR MEASURING INSTRUMENT
Document Type and Number:
Japanese Patent JP3118945
Kind Code:
B2
Abstract:
PURPOSE: To obtain a response corresponding to an odor concentration by providing a glass film electrode and the film of an oil-soluble ionic substance which is attached to the glass film electrode and causes a potential change upon adsorbing an odor material.
CONSTITUTION: The title odor sensor is provided with a glass film electrode 1 and the film 2 of an oil-soluble ionic substance which is attached to the electrode 1 and causes a potential change upon adsorbing an odor material. When the sensor is dipped in pure water 6 contained in a beaker 5 together with a reference electrode 3 and an odor material, for example, d-limonene is dissolved in the water, the odor material is adsorbed by the sensor and a potential is generated on the film 2. The potential is read with a voltmeter 4 as the voltage across the electrodes 1 and 3. The film 2 of the oil-soluble ionic substance, such as lecithin, etc., is manufactured in such a way that 1 pt.wt. lecithin is dissolved in 100 pts.wt. chloroform and the solution is applied to and dried on the electrode 1.
Inventors:
courtesy
Itsuo Nishiyama
Kenzo Takahashi
Itsuo Nishiyama
Kenzo Takahashi
Application Number:
JP8847592A
Publication Date:
December 18, 2000
Filing Date:
April 09, 1992
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
A61L9/00; G01N27/333; G01N27/414; G01N27/416; (IPC1-7): G01N27/333; A61L9/00; G01N27/414; G01N27/416
Domestic Patent References:
| JP63222248A | ||||
| JP4181150A |
Other References:
電子情報通信学会技術研究報告、９１（４１３）ｐ．９７−１０２及び奥付、１９９２年１月２３日発行
Attorney, Agent or Firm:
Kaneo Miyata (2 outside)