Title:
【発明の名称】電気化学的力センサ
Document Type and Number:
Japanese Patent JP3079156
Kind Code:
B2
Abstract:
A force sensor comprises a fluid-tight housing having two ends and a first wall at a first end. A flexible diaphragm (76) has a contacting surface (78) for transferring an external force to the sensor. The diaphragm is disposed to form a second wall at a second end of the fluid-tight housing and defines a storage chamber therein for holding a supply of electrochemically active gas. A rigidly supported electrolytic membrane (16) having two sides is disposed between the first and second walls to divide the storage chamber (14) into a smaller storage chamber (14) and a sensor chamber (12). At least one pervious electrode (18,20) is disposed on each side of and in contact with said electrolytic membrane (16). The electrodes form at least one electrode pair (18,20) separated by the electrolytic membrane (16). The gas is electrochemically reversibly active so as to enter into an anodic reaction at one side of the electrode pair whereby gas molecules are converted to ions transportable through the membrane (16) and a cathodic reaction at the opposite side of the electrode pair whereby ions are reconverted to gas molecules. Measurement means is provided for measuring the voltage between the electrode pair (18,20) (Fig 8A).
Inventors:
Henry Jean Robert Madget
Application Number:
JP21925291A
Publication Date:
August 21, 2000
Filing Date:
August 06, 1991
Export Citation:
Assignee:
Baxter International Incorporated
International Classes:
G01L1/20; G01L9/18; G01L11/00; G01N27/409; (IPC1-7): G01L11/00; G01N27/409
Domestic Patent References:
| JP63180847A | ||||
| JP63143035A | ||||
| JP6151535A | ||||
| JP6228631A | ||||
| JP586245U |
Attorney, Agent or Firm:
Takehiko Suzue (4 outside)