G
Grant W. Petty
- Jan 1, 1970
- 0
In connection with a prototype design I'm developing for a meteorological
measurement device, I'm looking for a readily available material with the
following physical properties:
1) Moderately resistive -- it will be used for resistive heating by passing
a current through a thin sheet sandwiched between two metal conductors.
Target resistivity should fall in the range 10 to 10**4 m*ohm at
temperatures between 0 and 100 C.
2) A marked increase in resistivity with increasing temperature (this
apparently rules out silicon, for example).
3) Mechanically stable and easy to work with in sheets or disks of order
0.1 mm thickness, 30 cm diameter.
4) Not subject to significant degradation or aging, even at sustained
temperatures near 100 C.
If anyone either knows offhand of a material matching the above description
or can point me to a good tabulation of candidate materials, please let me
know.
thanks
________________________________________
Prof. Grant W. Petty
Atmospheric and Oceanic Sciences
1225 W. Dayton Street
University of Wisconsin-Madison
Madison, WI 53706
[email protected]
Tel: (608) 263-3265
Fax: (608) 262-0166
measurement device, I'm looking for a readily available material with the
following physical properties:
1) Moderately resistive -- it will be used for resistive heating by passing
a current through a thin sheet sandwiched between two metal conductors.
Target resistivity should fall in the range 10 to 10**4 m*ohm at
temperatures between 0 and 100 C.
2) A marked increase in resistivity with increasing temperature (this
apparently rules out silicon, for example).
3) Mechanically stable and easy to work with in sheets or disks of order
0.1 mm thickness, 30 cm diameter.
4) Not subject to significant degradation or aging, even at sustained
temperatures near 100 C.
If anyone either knows offhand of a material matching the above description
or can point me to a good tabulation of candidate materials, please let me
know.
thanks
________________________________________
Prof. Grant W. Petty
Atmospheric and Oceanic Sciences
1225 W. Dayton Street
University of Wisconsin-Madison
Madison, WI 53706
[email protected]
Tel: (608) 263-3265
Fax: (608) 262-0166