The viscometer is nearing full completion! YAY! To mark this occasion to mark the end of a long two years, I am placing a small gallery of the almost finished product. The only thing missing is the outside cover which consists of a 4″ od aluminum tube. Also, the springs I’ve ordered have also not arrived as yet, however, for now, the elastics will suffice. Here are some of the features and facts:
- Can be used in-lab or in-process
- Selectable RPM with a tight tolerance on RPM +/-0.5RPM
- User calibration routines. This allows the end user to calibrate with 3 fluids of known viscosity
- 16 key keypad, used for calibration and settings, also for running special tests
- Can be used as a laboratory gel-timer
- Can be used for custom tests besides stormer viscometry
- Low power consumption <100ma or <2.4W
- RS-485 Serial output
- Control electronics have complete galvanic isolation
- 24VDC supply required
- repeatability (requires further testing) +/- 1.5%
- Modbus protocol (not yet implemented)
Here’s the Gallery!
Yes, a few too many pictures, oh well.
This thing took me quite a while and what I learned from it was immeasurable. Thankfully now that everything works as expected I can focus on my other projects without having this thing hanging over my head. Here’s to completion!
As an aside, here’s an interesting document on viscosity.