发明名称 |
Method and device for compensating temperature-dependent characteristic changes in ion-sensitive FET transducer |
摘要 |
An ion activity monitoring device is disclosed, having a semi-conductor device including an ion-sensitive field-effect transistor, for detecting the activity of ions in a liquid medium of interest, and a temperature sensor, for detecting the temperature of the liquid medium of interest, a constant current circuit for supplying a drain current of a particular value to the transistor, and a processing circuit for calculating the concentration of the ions in the liquid medium of interest. The drain current is of a value satisfying the relationship of ¦Id/ beta ¦</=0.10 volt2, wherein Id represents the drain current and beta represents the channel characteristic value of the ion-sensitive field-effect transistor. A method for operating the transistor is also disclosed.
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申请公布号 |
US4641249(A) |
申请公布日期 |
1987.02.03 |
申请号 |
US19840622250 |
申请日期 |
1984.06.19 |
申请人 |
KURARAY CO., LTD. |
发明人 |
GION, HIDENORI;KUBOTA, KENJI;NAKAMURA, MICHIHIRO;YANO, MAKOTO |
分类号 |
G01N27/414;(IPC1-7):G01N27/14;G01N27/46;G06F15/42 |
主分类号 |
G01N27/414 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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