arhi
Member
anyone have any knowledge of 1wire temperature sensor (like DS1820)
that can work in environment with temperatures 0-300 degrees C.
attm I use temperature to resistance transducers but they require too many wires .. as I would like to put approx 50 sensors inside the oven, the one wire ones would make the job much easier/cheaper then temp->resistance ones.
The size does not matter, the sensors need to be mounted inside the oven (12m*4m*4m) on the rails to measure temperature in different regions in the oven. The signal will go trough metal rails (3 metal bars make a rail - but I can make it 4 if I cannot find 1wire device so some 2wire i2c/can/xyz will do the job too)
I know that 12m will work ok for the 1wire .. the i2c will not work on that distance so afaik the 1wire is best for this sort of job, only, ds1820 is limited to 130C and would probably melt around 300C
ATTM I have only 4 transducers (temp->resistance) that I read with uC and control the temperature in the oven, but that works ok for smaller oven's, for 12m length I need more sensors and that makes the temp->resistance ones pretty useless.
EDIT: I need precision of 1 degree C
that can work in environment with temperatures 0-300 degrees C.
attm I use temperature to resistance transducers but they require too many wires .. as I would like to put approx 50 sensors inside the oven, the one wire ones would make the job much easier/cheaper then temp->resistance ones.
The size does not matter, the sensors need to be mounted inside the oven (12m*4m*4m) on the rails to measure temperature in different regions in the oven. The signal will go trough metal rails (3 metal bars make a rail - but I can make it 4 if I cannot find 1wire device so some 2wire i2c/can/xyz will do the job too)
I know that 12m will work ok for the 1wire .. the i2c will not work on that distance so afaik the 1wire is best for this sort of job, only, ds1820 is limited to 130C and would probably melt around 300C
ATTM I have only 4 transducers (temp->resistance) that I read with uC and control the temperature in the oven, but that works ok for smaller oven's, for 12m length I need more sensors and that makes the temp->resistance ones pretty useless.
EDIT: I need precision of 1 degree C
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