Hi,

so if I might summarize a bit we have the following:

You 'need':

a) an device to measure weight, not particular accurate.

b) it's to be placed inside an oven.

My guess:

a) You are interested in an 'relative' measurment
   i.e. the weight delta over time.

b) To determine when something is 'done'. :)


Some notes:

Mechanics inside an oven is *not* suitable, so all the
clever devices using levers, shafts etc. will probably only
work in an 'lab' ( read: not normal 'oven' ) enviroment.
If to be used 'profesionally' i strongly recommed placing
the measuring device outside the oven.
Also to take into account the an normal oven has to be cleaned
at times ( duh ! ) and it should then contain mostly flat surfaces.
Having plates, levers, bolts etc would make it close to impossible to cle=
an.

I guess an option could be an strain gauge, accurate however =

could have trouble with large temperature variations =

( as most of the other techniqes ).
You could always use an wire vibrating at resonant frequency
( by piezo or the like ) and measure the frequency change
when load is appiled to the wire ( i.e streched ).

/Tony


















Tony K=FCbek, Flintab AB            =

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E-mail: tony.kubek@flintab.com
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