deepak4you
Member level 1
Hello there,
I'm working on a PoC prototype for a human/animal body temperature measurement system as an IoT solution. After some research, I see that the MAX30205 is an excellent choice for human body temperature measurement.
Now I ordered the sensors alright, but I'm stuck on one question:
How will the final sensing probe look like if I were to use this sensor? The images I see of the sensor is such that one flat side of the sensor has an "exposure pad" (EP) which should be in contact with the body. But on the same side and in the same plane, there are connection ends as well. See image below:
Now even if I built a PCB with a connector to accommodate the sensor chip, but how could I place the EP on the body while the connector pins could also come in contact with the body and cause noise/disruption/short circuit of those connections?
Has anybody out these built a product out of this sensor or someone has any idea how to make this work? I thought I'd connect a copper plate on the EP using a thermal connecting adhesive/tape, but I am not sure how well it will work and how much error will be introduced due to possible losses in the adhesive/tape. I also thought of soldering a piece of copper on the EP, but again not sure if I'll damage the sensor completely with so much heat being exposed to the EP.
I hope I have explained my problem clearly enough, hope I find a decent solution.
Regards,
Deepak
I'm working on a PoC prototype for a human/animal body temperature measurement system as an IoT solution. After some research, I see that the MAX30205 is an excellent choice for human body temperature measurement.
Now I ordered the sensors alright, but I'm stuck on one question:
How will the final sensing probe look like if I were to use this sensor? The images I see of the sensor is such that one flat side of the sensor has an "exposure pad" (EP) which should be in contact with the body. But on the same side and in the same plane, there are connection ends as well. See image below:
Now even if I built a PCB with a connector to accommodate the sensor chip, but how could I place the EP on the body while the connector pins could also come in contact with the body and cause noise/disruption/short circuit of those connections?
Has anybody out these built a product out of this sensor or someone has any idea how to make this work? I thought I'd connect a copper plate on the EP using a thermal connecting adhesive/tape, but I am not sure how well it will work and how much error will be introduced due to possible losses in the adhesive/tape. I also thought of soldering a piece of copper on the EP, but again not sure if I'll damage the sensor completely with so much heat being exposed to the EP.
I hope I have explained my problem clearly enough, hope I find a decent solution.
Regards,
Deepak