1 / 21

Ice Accumulation Analyzer

Ice Accumulation Analyzer. Team 33 Daniel Hand Zhe Gao TA: Tamer Rousan. Reasons Prove power lines meet government requirements during severe weather Easily detect the area affected by the ice storm. Benefits Easy analysis of ice thickness on power line Low cost of implementation

lonato
Download Presentation

Ice Accumulation Analyzer

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ice Accumulation Analyzer Team 33 Daniel Hand ZheGao TA: Tamer Rousan

  2. Reasons • Prove power lines meet government requirements during severe weather • Easily detect the area affected by the ice storm • Benefits • Easy analysis of ice thickness on power line • Low cost of implementation • No modifications in infrastructure needed to add capability

  3. Using the frequency of vibration of the power line. The ice thickness can be accurately measured by observing the new frequency of vibration. Dramatic change in frequency as ice accumulates!

  4. Costs much less than other products on the market!

  5. System Overview • Hardware • Data Capture: Accelerometer -> Transmitter -> Receiver -> Software • Impact Hammer: 12V battery Supply, Motor, Timing circuit • Software • Perl Program: Record and Analyze Waveforms • Excel Spreadsheet: Calculate Frequency & Determine Ice Thickness

  6. Overall Block Diagram

  7. Accelerometer ADXL335 Accelerometer inside case, feeds signal to wireless transmitter TXM-900-HP3-pps Accelerometer on the test line

  8. Receiver RXM-900-HP3-PPS 1/8 “ Audio jack for communication between Receiver and Computer Wireless Receiver

  9. Wireless Signal Strength over Distance Resultant waveforms at increasing distance from 0 ft. to 115 ft (in 11.5 ft increments) Even at a distance of 115 feet, the waveform still retains high signal integrity.

  10. On time (seconds) = .693xR1xC Off time (seconds) = .693xR2xC Duty Cycle=100*R1/(R1+R2) Main concern: output current of LM555 Timer is 200 mA. Schematic of Timing Circuit

  11. Impact Hammer

  12. Simulated and Actual Waveforms The top waveform is a simulated frequency response of the line tapped with our finger. The bottom waveform shows the response when vibrated by our impact hammer.

  13. Software Flowchart

  14. End User Software Interface Simple to use. Shows Date and Time of each measurement. Easy to record a new data points.

  15. Application of Low Pass Filter Above is the waveform when the line had 50oz on the line before and after the low pass filter.

  16. Table of Constants Using Excel, we were able to change the values of constants, and these changes in values would propagate throughout all spreadsheets. =

  17. Frequency Testing Tested using play dough to simulate ice The weight of the play dough used to mimic the weight of ice Assume uniform distribution

  18. Actual Thickness vs Calculated Thickness Note that the calculated thickness was half of what was expected

  19. After multiplication factor of 2

  20. Considerations for future development • Batteries have diminished performances over long lifetimes. • Harness the power line’s voltage through the use of a step down transformerand rectifiers to produce DC power supply. • A more streamlined design that decreased the overall dimensions, while still maintaining accuracy.

  21. Thanks • Professor Reis • Professor Bernhard • Tamer Rousan • Ameren

More Related