Temperature Sensor for 4 Kelvin

Status
Not open for further replies.
A

archiees

Member level 1
Joined
Jul 22, 2005
Messages
38
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,695
Hi ,
I need to do some gain measurements of my MESFET amplifier at around 4 Kelvin. To measure the temperature I was hoping to buy Silicon diodes from Lakeshore - just realized that they are very expensive ($500 bucks for the calibrated ones). Is there a way i can rig up something in the lab without spending half a grand.
I need to go from aounrd 77 K to 4K with +/- 1 Kelvin error.
 

cant you buy a cheeper probe made in china

you could also rig up a d-a converter run from an mcu to supply the voltage instead

converting it to current is easy if needed
 

    A

    archiees

    Points: 2
    Helpful Answer Positive Rating
Please,
can you tell me more? What kind and do you have alink to the specs?
 

if it uses an a-d just use the same resolution of d-a to supply

**broken link removed**

here is a page i found has some code
{nice and easy in picbasic or something }
use an lcd

or use c language there is lots of free compilers around
 

    A

    archiees

    Points: 2
    Helpful Answer Positive Rating
The lower limit of these sensors is greater than 4 kelvin which is equal to -269 degree celcius. I need to something that will go to that cryogenic temperautres.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…