[SS2S-Main] Re: Tempilstick

  • From: "Brian Su" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "cycloniterulez@xxxxxxxxx" for DMARC)
  • To: "sugarshot@xxxxxxxxxxxxx" <sugarshot@xxxxxxxxxxxxx>
  • Date: Tue, 25 Nov 2014 19:34:05 +0000

From my very limited experience with IR thermometers, they're only accurate 
when correctly compensated for the emissivity of the surface being measured. On 
top of that, the cheap units can't measure above 900 degrees Celsius. 
 

Kind Regards,

Brian Su.


Sent from my iPhone.

> On 25 Nov 2014, at 18:26, Vicente Alvero Zambrano 
> <vicente_alvero_14@xxxxxxxxxxx> wrote:
> 
> Exactly. We need a continuously record the temperature. Therefore, the two 
> proposed options, the pencil and the thermocouple are not suitable for our 
> purpose. We will use several thermocouples within the cone, temperature 
> recording. But abroad, will be in direct contact with the flame. That is why, 
> we want to use an infrared thermometer. Does anyone know how we can do one 
> and connect it to the computer?
> 
> Date: Tue, 25 Nov 2014 18:32:57 +0100
> From: hot@xxxxxxxxxxxxx
> To: sugarshot@xxxxxxxxxxxxx
> Subject: [SS2S-Main] Re: Tempilstick
> 
> Thermocouples are cheap and work well, but if they are embedded in a sample 
> that gets torched, they will at best record the surface temperature of the 
> sample at the brief moment they are at the surface. It may work - and even 
> provide usefull data - but an IR thermometer will read the surface 
> temperature continuously.
> Hans
> On 11/25/2014 05:34 PM, Brian Su (Redacted sender cycloniterulez@xxxxxxxxx 
> for DMARC) wrote:
> This one sure looks much better.
> 
> Kind Regards,
> 
> Brian Su.
> 
> 
> Sent from my iPhone.
> 
> On 25 Nov 2014, at 16:27, Grant Saviers <grants2@xxxxxxxxxxx> wrote:
> 
> Here is another ebay seller with all thermocouple options, packaging 
> variations, temperature compensated junctions, and EMI filtering, etc.  Looks 
> to be professional grade engineering:
> 
> http://www.ebay.com/itm/Quad-Channel-K-Type-Thermocouple-Amplifier-Conditioner-Analog-Output-AD8495-/331032888967?pt=LH_DefaultDomain_0&hash=item4d13190687
> 
> On 11/25/2014 8:10 AM, Grant Saviers wrote:
> A type K thermocouple is good to 1250 C.  It will need a simple 
> instrumentation amplifier to get the signal voltage to a range compatible 
> with the Arduino A/D converter.  For about $10 in parts you can build your 
> own IN-AMP.  There are several choices for single chip IN-AMPs that will do 
> the job and here is a board from China for $10, and the chip output is 
> 10mv/deg C.
> 
> http://www.ebay.com/itm/AD597-Ultimaker-Temperature-Control-Board-K-Thermocouple-Signal-Amplifier-/321597894984?pt=LH_DefaultDomain_0&hash=item4ae0ba7148
> 
> Grant 
> 
> On 11/25/2014 1:12 AM, flint hapirat (Redacted sender flinthapirat@xxxxxxxxx 
> for DMARC) wrote:
> One comment - The tempilstick temperature pens are rated between 38c-1093c... 
>  
> Hope this is still helpful.
> 
> From: Vicente Alvero Zambrano <vicente_alvero_14@xxxxxxxxxxx>
> To: "sugarshot@xxxxxxxxxxxxx" <sugarshot@xxxxxxxxxxxxx> 
> Sent: Sunday, November 16, 2014 9:10 PM
> Subject: [SS2S-Main] Re: volunteering
> 
> Thanks for your reply Markus,
> 
> It is a good idea. The main problem I see is that we need to measure high 
> temperatures. I do not know exactly how much, but around 1200ÂșC. And this 
> only measures halfway. Do you know if there is a sensor for arduino with this 
> possibility?
> 
> 
> 
> From: m.bindhammer@xxxxxxxxxxx
> To: sugarshot@xxxxxxxxxxxxx
> Subject: [SS2S-Main] Re: volunteering
> Date: Sun, 16 Nov 2014 23:21:22 +0800
> 
> 
> Hi Vicente,
> 
> It is quite easy to build a data logger with an Arduino based micro 
> controller, SD card, SD card socket, HEF 4050 voltage level shifter, DS1307 
> RTC and one (or more) MLX90614 IR thermometer(s) which communicate(s) over 
> the I2C bus as well.
> I am just doing this for a medical project.
> 
> Markus
> 
> From: vicente_alvero_14@xxxxxxxxxxx
> To: sugarshot@xxxxxxxxxxxxx
> Subject: [SS2S-Main] volunteering
> Date: Sat, 15 Nov 2014 19:21:26 +0100
> 
> Hi all again,
> Although a long time do not talk about it, yet we continue the investigation 
> of ablative materials.
> For the study of the material that will coat the nosecone of our rocket; 
> Richard, Mattias and I already started last summer to work on it.
> 
> Throughout this week, I've been talking to Hans, and he thought the 
> possibility to also measure the temperature on the side of the wall that is 
> in contact with the flame. Would be measured by an infrared thermometer.
> 
> I am contacting you to see if anyone is interested, or know how, to attach an 
> infrared thermometer with data logger that Liam is manufacturing for 
> thermocouples.
> 
> By this, we can obtain pairs of temperatures at the same point. Both outside 
> and inside of the wall, in order to obtain among other data, values of 
> thermal conductivity and heat capacity of each material.
> 
> Thanks in advance for your cooperation and interest.
> 
> 
> 
> 
> 

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