Physiological characteristic sensors and methods for forming such sensors
First Claim
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1. A method for forming a physiological characteristic sensor, the method comprising the steps of:
- immersing a sensor electrode in a platinum electrolytic bath; and
performing an electrodeposition process by sequentially applying a pulsed signal to the sensor electrode, wherein the pulsed signal includes a repeated cycle of a first current and a second current different from the first current, and applying a non-pulsed continuous signal to the sensor electrode, wherein the non-pulsed continuous signal includes a non-repeated application of a third current, for from about 50 seconds to about 240 seconds to form a platinum deposit on the sensor electrode.
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Abstract
A physiological characteristic sensor, a method for forming a physiological characteristic sensor, and a method for forming a platinum deposit having a rough surface are presented here. The method for forming a physiological characteristic sensor includes immersing a sensor electrode in a platinum electrolytic bath. Further, the method includes performing an electrodeposition process by sequentially applying a pulsed signal to the sensor electrode and applying a non-pulsed continuous signal to the sensor electrode to form a platinum deposit on the sensor electrode.
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Citations
18 Claims
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1. A method for forming a physiological characteristic sensor, the method comprising the steps of:
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immersing a sensor electrode in a platinum electrolytic bath; and performing an electrodeposition process by sequentially applying a pulsed signal to the sensor electrode, wherein the pulsed signal includes a repeated cycle of a first current and a second current different from the first current, and applying a non-pulsed continuous signal to the sensor electrode, wherein the non-pulsed continuous signal includes a non-repeated application of a third current, for from about 50 seconds to about 240 seconds to form a platinum deposit on the sensor electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for forming a physiological characteristic sensor, the method comprising the steps of:
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immersing a sensor electrode in a platinum electrolytic bath; and performing an electrodeposition process by sequentially applying a pulsed signal to the sensor electrode and applying a non-pulsed continuous signal to the sensor electrode to form a platinum deposit on the sensor electrode, wherein applying the non-pulsed continuous signal to the sensor electrode comprises applying a non-pulsed continuous current of from about −
50 μ
A to about −
120 μ
A to the sensor electrode for from about 50 seconds to about 240 seconds. - View Dependent Claims (15, 16)
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17. A method for forming a physiological characteristic sensor, the method comprising the steps of:
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immersing a sensor electrode in a platinum electrolytic bath; and performing an electrodeposition process by sequentially applying a pulsed signal including a repeated cycle of a first current and a second current different from the first current to the sensor electrode and applying a non-pulsed continuous signal including a non-repeated application of a non-pulsed continuous current to the sensor electrode to form a platinum deposit on the sensor electrode, wherein applying the pulsed signal to the sensor electrode comprises; applying a first pulsed current to the sensor electrode in a first sequence by applying cycles of the first current of from about −
80 μ
A to about −
120 μ
A and the second current of from about 0 μ
A to about −
10 μ
A; andapplying a second pulsed current to the sensor electrode in a second sequence by applying cycles of a third current of from about −
80 μ
A to about −
100 μ
A and a fourth current of from about −
70 μ
A to about −
90 μ
A; andwherein applying the non-pulsed continuous signal to the sensor electrode comprises applying the non-pulsed continuous current of from about −
70 μ
A to about −
110 μ
A.
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18. A method for forming a physiological characteristic sensor, the method comprising the steps of:
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immersing a sensor electrode in a platinum electrolytic bath; and performing an electrodeposition process by sequentially applying a pulsed signal to the sensor electrode, wherein the pulsed signal includes a repeated cycle of a first current and a second current different from the first current, and applying a non-pulsed continuous signal to the sensor electrode, wherein the non-pulsed continuous signal includes a non-repeated application of a third current, to form a platinum deposit on the sensor electrode, wherein performing the electrodeposition process comprises; applying the pulsed signal to the sensor electrode; applying a first step signal to the sensor electrode; applying a second step signal to the sensor electrode; applying a third step signal to the sensor electrode; applying a fourth step signal to the sensor electrode; and applying the non-pulsed continuous signal to the sensor electrode.
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Specification