Method of reducing sensor corrosion in absorbent articles
View Patent ↗Methods of reducing sensor corrosion include providing a monitor adapted to electrically connect with a wetness sensor integrated with an absorbent article. The wetness sensor has a first conductor and a second conductor and the monitor includes programming instructions that, when the monitor is attached and activated, repetitively execute a sequence of steps that includes applying voltage to the first conductor; measuring the potential across the conductors; and discontinuing the voltage to the first conductor. The instructions may also repetitively execute a sequence of steps that includes alternatively applying voltage to the first and second conductors and/or grounding the first conductor and/or second conductors after discontinuing voltage.
1. A method of reducing sensor corrosion in an absorbent article comprising,
providing a monitor adapted to electrically connect with a wetness sensor integrated with an absorbent article, the wetness sensor having a first conductor and a second conductor, the monitor comprising programming instructions that, when attached to the sensor in the absorbent article and activated, execute a sequence of steps, wherein the sequence of steps includes,
applying voltage to the first conductor of the wetness sensor,
measuring the potential across the conductors,
discontinuing the voltage to the first conductor, and
wherein the sequence of steps is repetitively executed at least one time per second and the voltage is applied to the first conductor for 10% or less of the time and the voltage is discontinued to the first conductor 90% or more of the time.
2. The method of claim 1 wherein the instructions further comprise repetitively executing the sequence of steps at least three times per second.
3. The method of claim 2 wherein the voltage is applied to the first conductor for 5% or less of the time and the voltage is discontinued to the first conductor 95% or more of the time.
4. The method of claim 1 wherein the instructions further comprise repetitively executing the sequence of steps at a first frequency for a first time period and repetitively executing the sequence of steps at a second frequency for a second time period wherein the first frequency and the second frequency are different.
5. The method of claim 1 wherein the instructions further comprise the step of grounding the first conductor after discontinuing the voltage to the first conductor.
6. The method of claim 1 wherein the instructions further comprise the steps of
applying voltage to the second conductor after discontinuing the voltage to the first conductor,
measuring the potential across the conductors, and
discontinuing the voltage to the second conductor.
7. The method of claim 6 wherein the instructions further comprise the steps of,
grounding the first conductor after discontinuing the voltage to the first conductor and
grounding the second conductor after discontinuing the voltage to the second conductor.
8. A method of reducing sensor corrosion in an absorbent article comprising,
providing a monitor adapted to electrically connect with a wetness sensor integrated with an absorbent article, the wetness sensor having a first conductor and a second conductor, the monitor comprising programming instructions that, when attached to the sensor in the absorbent article and activated, repetitively execute a sequence of steps including,
applying voltage to the first conductor,
measuring the potential across the conductors,
discontinuing the voltage to the first conductor,
applying voltage to the second conductor,
measuring the potential across the conductors, and
discontinuing the voltage to the second conductor.
9. The method of claim 8 wherein the instructions further comprise repetitively executing the sequence of steps at least one time per second.
10. The method of claim 8 wherein the instructions further comprise repetitively executing the sequence of steps at least three times per second.
11. The method of claim 8 wherein the instructions further comprise repetitively executing the sequence of steps at a first frequency for a first time period and repetitively executing the sequence of steps at a second frequency for a second time period wherein the first frequency and the second frequency are different.
12. The method of claim 8 wherein the voltage is applied to the first conductor for 10% or less of the time and the voltage is discontinued to the first conductor 90% or more of the time.
13. The method of claim 12 wherein the voltage is applied to the second conductor for 10% or less of the time and the voltage is discontinued to the second conductor 90% or more of the time.
14. The method of claim 8 wherein the instructions further comprise the step of grounding the first conductor after discontinuing the voltage to the first conductor.
15. The method of claim 8 wherein the instructions further comprise the steps of,
grounding the first conductor after discontinuing the voltage to the first conductor and
grounding the second conductor after discontinuing the voltage to the second conductor.
16. A method of reducing sensor corrosion in an absorbent article comprising,
providing a monitor adapted to electrically connect with a wetness sensor included in an absorbent article, the wetness sensor having a first conductor and a second conductor, the monitor comprising programming instructions that, when attached to the absorbent article and activated, repetitively execute a sequence of steps including,
applying voltage to the first conductor,
measuring the potential across the conductors,
discontinuing the voltage to the first conductor,
grounding the first conductor,
applying voltage to the second conductor,
measuring the potential across the conductors,
discontinuing the voltage to the second conductor, and
grounding the second conductor.
17. The method of claim 16 wherein the instructions further comprise repetitively executing the sequence of steps at least one time per second.
18. The method of claim 16 wherein the instructions further comprise repetitively executing the sequence of steps at least three times per second.
19. The method of claim 16 wherein the instructions further comprise repetitively executing the sequence of steps at a first frequency for a first time period and repetitively executing the sequence of steps at a second frequency for a second time period wherein the first frequency and the second frequency are different.
20. The method of claim 16 wherein the voltage is applied to the first conductor for 10% or less of the time and the voltage is discontinued to the first conductor 90% or more of the time and the voltage is applied to the second conductor for 10% or less of the time and the voltage is discontinued to the second conductor 90% or more of the time.