Human body temperature sensor

The probe is a standard I2C device so can be integrated easily into pretty much any controller, Raspberry PI, Arduino, LaunchPad etc, there will already be plenty of examples available for it

here for Arduino: https://github.com/federico-galli/Arduino-i2c-temperature-sensor-DS1624/blob/master/DS1624.cpp

or Raspberry PI:  https://www.raspberrypi.org/forums/viewtopic.php?f=32&t=88149

or launchpad : http://msp430-discuss.996251.n3.nabble.com/DS1624-C-language-code-examples-td15655.html

should get you started

you can also use a DS18B20 which is a one wire device and also easy to integrate to any of the micro controllers mentioned above, this one also hase the benefit of being able to be much further away from the micro-controller

Regards

Peter

Hello Peter,

I wrote:

I need to find the way to convert this IC in a sensor

maybe this generated the confusion that is detailed in the lines below. The question is not how to connect the IC to the Raspberry PI (I2C is just what I want to do as I have three bus channels free). The problem is how to put the chip able to get the human body temperature. To be more clear it is more a problem of mechanics than electronic. How can I put the Chip somewhere in a human - without killing him, hopefully - to know his temperature ?

I write down a draft idea but I have found very few information on the Internet and I was asking if someone knows how should it be done or has some suggestion.

Thank you. Enrico

Ah, got ya

I would suggest something like a watch band for one possibility and have the chip on the inside (Maybe a hole in the band to minumize the protusion

biggest problem eith taking human temp of course is whereon the body is the best place

Ear, under arm pit ? (3D print a holder or encapsulate in epoxy or something ?

under tongue (Perhaps 3D print a cover for it that is very thin on one side to allow easy heat transfer and use a thin replaceable plastic film cover for each patient tested for hygine purposes

anally ( ) there are versions of the one wire probe in a small stainless steel tube format that could work for this one, but who would want to be second, never mind first

Hello,

If you look over the sudden impact challenge on here you should find a good few examples as all of those used the body temperature as part of their solution.

Remaining in the non-invasive context what I was thinking is Ear and under arm pit.

I check and let you know. Thank you Peter.

Enrico

Kas, it is very difficult to find something in detail without reading the ton of posts there

it seems that I have found the right way for the solution.

As a matter of fact it will be an integration between the direct-touch sensor actually used by many digital temperature probes, and a comfortable support for direct skin contact continuous temperature measurement. The possible repere points maybe ascillar and oral, plus direct skin contact, expecting different temperature ranges as shown in the image below.

The design idea is to use a copper terminal joined to the IC sensor put internally to the device and facilitating the thermal conduction with a thermal-conductive paste.

The only issue I see is that copper is subject to oxidation, but it is one of the better tolerated metals by the human body and as shown in the table below, it has a very good thermal conductivity coefficient.

The alternative for the terminal supporting the IC is using acrylic plastic material that has also a good conductivity, but some experiments should be done,.

Hello Enrico,
Hope so you are doing great.

Are you able to design the sensor?
Kindly reply as soon as possible.