Claims
- 1. A method for reviving an electrode unit of a biosensor device which includes a working electrode and a counter electrode, and which measures a concentration of an object substance based upon an electrical signal generated between the working electrode and the counter electrode when a predetermined forward measurement bias voltage is applied to the working electrode on which a physiologically active substance is placed, the electrical signal being generated based upon a biological reaction of the object substance, said method comprising the steps of:
- (1) applying a predetermined reverse bias voltage to the working electrode for a predetermined time period, and
- (2) applying a predetermined forward measurement bias voltage to the working electrode,
- wherein at least one of the bias voltages is gradually increased in absolute value according to a time constant to reach a predetermined value.
- 2. A method as set forth in claim 1, wherein the predetermined reverse bias voltage is gradually increased according to a first time constant until the absolute value thereof reaches a predetermined value, and the predetermined forward measurement bias voltage is gradually increased according to a second time constant until the absolute value thereof reaches a predetermined value.
- 3. A method as set forth in claim 2, wherein the second time constant is equal to the first time constant.
- 4. A method as set forth in claim 2, wherein the second time constant is longer than the first time constant.
- 5. A method for reviving an electrode unit of a biosensor device which includes a working electrode and a counter electrode, and which measures a concentration of an object substance based upon an electrical signal generated between the working electrode and the counter electrode when a predetermined forward measurement bias voltage is applied to the working electrode on which a physiologically active substance is placed, the electrical signal being generated based upon a biological reaction of the object substance, said method comprising the steps of:
- (1) applying a predetermined reverse bias voltage to the working electrode for a first predetermined time period, and thereafter
- (2) applying a forward bias voltage which is higher than the forward measurement bias voltage to the working electrode for a second predetermined time period before the forward measurement bias voltage is applied to the working electrode,
- wherein at least one of the reverse bias voltage, the forward bias voltage, and the forward measurement bias voltage is gradually increased in absolute value according to a time constant to reach a predetermined value.
- 6. A method as set forth in claim 5, wherein the predetermined reverse bias voltage is gradually increased according to a first time constant until the absolute value thereof reaches a predetermined value, and the forward bias voltage is gradually increased according to a second time constant until the absolute value thereof reaches a predetermined value which is higher than the forward measurement bias voltage.
- 7. A method as set forth in claim 6, wherein the second time constant is equal to the first time constant.
- 8. A method as set forth in claim 6, wherein the second time constant is longer than the first time constant.
Priority Claims (2)
Number |
Date |
Country |
Kind |
1-223613 |
Aug 1989 |
JPX |
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1-223614 |
Aug 1989 |
JPX |
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Parent Case Info
This application is a continuation-in-part of U.S. application Ser. No. 07/574,788, now abandoned and U.S. application Ser. No. 07/574,790, both filed on Aug. 30, 1990, now abandoned.
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Entry |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
574788 |
Aug 1990 |
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