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  1. Dodger6600

    Grounding a noisy load cell

    I conditioned the signal to try and rectify the problem and turns out Comcokid called it right. Turns out I was supplied with an inadequate DAQ board that isn't sensitive enough to read such low changes in voltage. Long story short, another is on its way.
  2. Dodger6600

    Grounding a noisy load cell

    I have a 25000 pound (15V max) load cell that is supplied by a battery pack/converter which puts out 12.22 VDC. The load cell is read via DAQ board by laptop. The issue I am having is that the noise level (without any load) is approximately 1mV which according to what I have calibrated with...
  3. Dodger6600

    Step down converter to load cell, current issue?

    I have a 25000 lb rated load cell that I need to supply with 12Vdc, I have a battery pack that puts out approximately 37Vdc. The resistance in the load cell is 350 Ohms. My concern is that if I step down the battery pack with a converter from the 37Vdc to 12Vdc, what kind of current am I going...
  4. Dodger6600

    10V Load Cell supplied in the field?

    Correct, the DAQ board is connected and powered via USB port to the laptop which then in turn supplies power to the load cell. Each USB port supplies a voltage of 5V. I was under the impression that the DAQ board supplies a steady source voltage but Ive read that the output from a USB can drop...
  5. Dodger6600

    10V Load Cell supplied in the field?

    So with the 5V from the laptop, it's common to get a voltage drop through the USB (hence the tight voltage regulation)? Without the regulation, will any nominal fluctuation be apparent in my numbers (will it show up in my graph)? I'm using TracerDAQ Pro and if I set my range to +/-5V should I...
  6. Dodger6600

    10V Load Cell supplied in the field?

    I have a load cell rated for 25000 lbs and such requires an excitation voltage of 10V. The DAQ board that came with it can only supply 5V and all this testing will be done in a remote location meaning I'll only have a truck as a power supply and any batteries I may need. How can I meet the 10V...
  7. Dodger6600

    Air Cylinder Quick Release Mech

    Yea I was considering adding springs to the pins connecting the solenoid to the rod clamp to help balance the forces out.
  8. Dodger6600

    Air Cylinder Quick Release Mech

    So I have an air cylinder similar to the picture posted and what I need is a some sort of device that will connect the bottom rod to the base of the cylinder and then quick release it after it has been pressurized. I need to be able to adjust the height of the rod so I was thinking of some sort...
  9. Dodger6600

    Universal Joint that will lock in place

    The terrain shouldn't be too severe of a grade and the frame will be roughly 5' x 3' x 4.5-5' tall. Ideally, the impact area (6" diameter circle) will be the only area that will be leveled. The need for the u-joint or ball-socket joint will just allow the air cylinder to hang plum regardless...
  10. Dodger6600

    Universal Joint that will lock in place

    I am working on an impact hammer to test for anomalies in soil, essentially locating sinkholes. I have a 3 foot air cylinder that I need to hang from a steel frame. Ideally I would like it to be able to hang plum with the ground regardless of the slope in which the frame is sitting on. How can I...

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