Hi, I’m looking for a heavy duty strength sensor (Weathstone bridge probably) that will receive blows of about 300 Kg. I’m wondering all the stuff I need to be able to read the data on my computer and eventually put the data in a program.
I’m also looking for a laser distance sensor (between 50 and 200 cm approx) and the stuff needed to read the data and program the sensor on my computer. I think my requests are quite simple but starting from scratch a little help would be the most welcome.
Thanks
-Alexis
Not sure you’ll be able to properly detect impact loads using load cells: robotshop.com/en/force-sensors.html
You might have better results with an accelerometer and convert the g force to a load.
robotshop.com/en/sensors-ac … eters.html
Can you give some details about your application?
If you’re specifically looking for 1D (point) laser: robotshop.com/en/single-beam.html
Some include USB accessories, while others will require additional circuitry. If you’ve found a few models of interest and are not sure what else you might need, reply here with the links and we’ll be happy to help.
Happy to help and looking forward to more info.
I’m specifically looking for this model of laser, I would like you to tell me what I need to buy in addition to be able to use the data on my computer ! :
robotshop.com/ca/fr/capteur … 50-cm.html
And the accelerometer was my first idea, but I don’t think the results would be good for what I want to do. My goal is to measure the force of a hammer blow on a steel rod that is beeing stuck in the ground. The accelerometer has to be on the rod and not on the hammer, so the acceleration would be the acceleration of the rod in the ground. The values of acceleration would vary depending on the type of ground… My goal with the strength cell is to be able to measure the energy transfered from the hammer to the rod… so basically the force of the impact… having the acceleration of the hammer would work, but the cell has to be on the rod…
Thanks a lot for your time !
You think the load cell might not be able to measure the force since it’s a dynamic impact (the peak force will only be for a tiny fraction of a second) is that it ?
I was thinking about this load cell in the 500Kg version : robotshop.com/ca/en/type-s- … 00-kg.html
The effect of the ground seems to have an impact on whatever sensor you select since it absorbs part of the force and allows the rod to move.
500Kg load cell: robotshop.com/ca/en/500kg-s … -cell.html
Every action produces an equal and opposite reaction, so the force felt by either the hammer or the rod should be the same, barring some energy lost to heat (vibration, sound etc.). F (hammer) = F (rod)
The force acting on the rod however is converted to an acceleration F=M*a, whereas the acceleration of the hammer would go to zero.
Do you have the option to purchase and test both? Accelerometers tend to be used more with impacts.
