Linearity can be handled in the software later on with a calibration function.
More important is temperature stability and sample rate. It could be that the
amplifier is limited in speed. For a balance at home it doesn't matter but for
rocket engine test you may want to know thrust in ms range.
Am 19. September 2018 08:34:37 MESZ schrieb Troy Prideaux
<troy@xxxxxxxxxxxxxxxxxxxxx>:
I'd be interested to know how linear they are. I've personally
purchased quite a few cheap and nasty load cells over the years from
the various online market places and have been somewhat disappointed
with their linearity or accuracy over the measurement range.
Troy
-----Original Message-----[mailto:arocket-bounce@xxxxxxxxxxxxx]
From: arocket-bounce@xxxxxxxxxxxxx
On Behalf Of Ben Brockertfor
Sent: Wednesday, 19 September 2018 12:05 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Crazy cheap loadcells
On Sugpro Kelly Jones pointed these out: https://amzn.to/2OxOfyP
$8.50 for a 1, 10, or 20kg beam loadcell and amplifier. Seems ideal
building small solids, or cold gas thrusters, or spark torchigniters. Don't even
have to worry about blowing it up at that price.even a
You still need a DAQ, but that can be an Arduino or an all-in-one or
recording o-scope.