Hi all.
I have a project with individual silos (100 t capacity each), and am thinking about using strain gauges for the fill level measurement.
1. It does not have to be super accurate. +/- 5% is plenty good. The silos stand with their own individual legs. Should I measure on one leg, several legs, or all legs ?
2. Should I use a single strain gauge foil on each leg, or should I on each leg arrange 4 foils in a bridge arrangement ?
2a. I can only find strain gauge foils with a single strain gauge. Does there exist foils with 4 strain gauges pre-configured in a bridge connection ?
(I have a lot of experience with load cells, where you always use bridge connections, but I have no experience with strain gauges).
3. I can find strain gauges of steel or aluminium. Why would I chose one over the other ?
4. Any good suppliers in the EU ?
5. Any other useful tips or links to good sites about strain gauges ?
Thanks in advance.
edit:
6. What about the physical wire connections on the strain gauges ? What do people do ?
I am thinking about cutting the bottom of a regular terminal box and place it over the strain gauge(s), and also place a DIN rail for the further connection or even place the converter directly in the box.
I have a project with individual silos (100 t capacity each), and am thinking about using strain gauges for the fill level measurement.
1. It does not have to be super accurate. +/- 5% is plenty good. The silos stand with their own individual legs. Should I measure on one leg, several legs, or all legs ?
2. Should I use a single strain gauge foil on each leg, or should I on each leg arrange 4 foils in a bridge arrangement ?
2a. I can only find strain gauge foils with a single strain gauge. Does there exist foils with 4 strain gauges pre-configured in a bridge connection ?
(I have a lot of experience with load cells, where you always use bridge connections, but I have no experience with strain gauges).
3. I can find strain gauges of steel or aluminium. Why would I chose one over the other ?
4. Any good suppliers in the EU ?
5. Any other useful tips or links to good sites about strain gauges ?
Thanks in advance.
edit:
6. What about the physical wire connections on the strain gauges ? What do people do ?
I am thinking about cutting the bottom of a regular terminal box and place it over the strain gauge(s), and also place a DIN rail for the further connection or even place the converter directly in the box.
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