8 Channel Thermocouple Based Temperature data logger
8 Channel Thermocouple Based Temperature data logger
(OP)
Hi
First of all sorry for my English, not my native language.
Im searching for a 8 Channel Thermocouple Based Temperature Data Logger kit.
Im gonna use it to log the temperature that coming out from my dragster mufflers
Here`s some specs:
The Data Logger should be battery power so i can put it on-board.
Im gonna use a Thermocople probe type K, that i already have, off course in this case i have 8 of them.
Should have a temperature acquisition range between 0F and 2000F for every channel.
Accuracy is very important.. it should be i think at least 8 bits
Sampling rate per second . this cars use nitro-methane where there s detonations and temperature shock (extremely rapid changes in temperature), i guess has to be at least 3 samples/sec.
It would be nice to have a LCD display but not necessary.
Storing the readings - obviously EEPROM is an easy option but if we can implement a SD-card would be great!
Off course if you choose EEPROM a USB or SERIAL connection to the PC is required.
Look at this Data Logger http://ifamilysoftware.com/8307.html is has pretty much same specs i need but single channel.
And has to be strong enough so G forces will not tear this unit apart.
My Type-K thermocouple assemblies (Nickel-Chromium/Nickel-Aluminum) are terminated with a two pin male miniature-connector.
Ok i think i give you the idea, There`s someone that can help me?
Thank`s for your attention and if you have some question please write me back.
Best regards
AtApi
First of all sorry for my English, not my native language.
Im searching for a 8 Channel Thermocouple Based Temperature Data Logger kit.
Im gonna use it to log the temperature that coming out from my dragster mufflers
Here`s some specs:
The Data Logger should be battery power so i can put it on-board.
Im gonna use a Thermocople probe type K, that i already have, off course in this case i have 8 of them.
Should have a temperature acquisition range between 0F and 2000F for every channel.
Accuracy is very important.. it should be i think at least 8 bits
Sampling rate per second . this cars use nitro-methane where there s detonations and temperature shock (extremely rapid changes in temperature), i guess has to be at least 3 samples/sec.
It would be nice to have a LCD display but not necessary.
Storing the readings - obviously EEPROM is an easy option but if we can implement a SD-card would be great!
Off course if you choose EEPROM a USB or SERIAL connection to the PC is required.
Look at this Data Logger http://ifamilysoftware.com/8307.html is has pretty much same specs i need but single channel.
And has to be strong enough so G forces will not tear this unit apart.
My Type-K thermocouple assemblies (Nickel-Chromium/Nickel-Aluminum) are terminated with a two pin male miniature-connector.
Ok i think i give you the idea, There`s someone that can help me?
Thank`s for your attention and if you have some question please write me back.
Best regards
AtApi





RE: 8 Channel Thermocouple Based Temperature data logger
Have you searched on the Web? There are lots of them.
Look at how you unload the data from them and how you see it as this will greatly influence the usability.
Most of them won't care a bit about your G forces.
Here is just one place to check.
h
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: 8 Channel Thermocouple Based Temperature data logger
Assuming something like 10 runs at 2 minutes each before dumping the data, you need to be able to store something like a million samples. The only Omega system that fits that bill is:
http://www.omega.com/ppt/pptsc.asp?ref=OMB-LOGBOOK
It's a bit of an overkill, but you could turn this thing on at the beginning of the day and it'll be able to easily store 24 hrs of samples. The only downside is that the channel sampling is sequential, albeit, it's only a total of 80 microseconds to run all 8 channels.
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: 8 Channel Thermocouple Based Temperature data logger
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: 8 Channel Thermocouple Based Temperature data logger
I suspect he's after tuning sysmmetry not realtime control.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: 8 Channel Thermocouple Based Temperature data logger
General aviation aircraft use monitors (not loggers) for comparing cylinder temperature variations:
http://www.insightavionics.com/gemseries.htm
RE: 8 Channel Thermocouple Based Temperature data logger
http:/
The price is a bit better than the Omega jobbie.
RE: 8 Channel Thermocouple Based Temperature data logger
I would suggest that the response rate of a "fast" bare t/c junction would much longer than 1/3s - assuming you have the usual thickness wires. "Fast" response time t/c's are classed as 1s.
Cheers
Harry
RE: 8 Channel Thermocouple Based Temperature data logger
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"It's the questions that drive us"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
RE: 8 Channel Thermocouple Based Temperature data logger