From: Paul
Date: Sun, 24 Mar 2002 22:22:09 +0000
Subject: Re: Ready :-)) - Re: [TSSP] short H/D and stuff
The analysis of the CSV files: TEK00000.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.912 (0.01%,27Hz) 464.44 (4.53%,21.0) 98.3% -0.1dB 2 578.091 (0.02%,96Hz) 185.29 (1.43%, 2.7) 14.1% -17.0dB 3 904.579 (0.05%,441Hz) 106.80 (8.06%, 8.6) 6.3% -24.0dB Accounted for 98.5% of input signal TEK00001.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.956 (0.01%,12Hz) 283.93 (1.07%, 3.1) 97.0% -0.3dB 2 577.965 (0.02%,99Hz) 168.62 (1.65%, 2.8) 16.3% -15.7dB 3 903.473 (0.04%,362Hz) 102.70 (2.94%, 3.0) 7.5% -22.5dB Accounted for 98.4% of input signal TEK00002.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.974 (0.01%,12Hz) 233.71 (0.70%, 1.6) 97.2% -0.2dB 2 578.114 (0.02%,123Hz) 135.77 (1.24%, 1.7) 16.4% -15.7dB 3 904.198 (0.04%,379Hz) 87.93 (1.91%, 1.7) 8.1% -21.9dB Accounted for 98.6% of input signal TEK00003.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.990 (0.01%,13Hz) 219.48 (0.52%, 1.1) 96.9% -0.3dB 2 578.117 (0.02%,121Hz) 135.77 (2.55%, 3.5) 16.5% -15.6dB 3 904.379 (0.04%,367Hz) 99.40 (4.53%, 4.5) 8.2% -21.7dB Accounted for 98.1% of input signal TEK00004.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.990 (0.01%,13Hz) 214.51 (0.45%, 1.0) 96.2% -0.3dB 2 578.079 (0.02%,103Hz) 153.17 (0.70%, 1.1) 17.8% -15.0dB 3 903.893 (0.04%,358Hz) 100.09 (5.23%, 5.2) 8.6% -21.3dB Accounted for 97.8% of input signal TEK00005.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.982 (0.01%,13Hz) 217.15 (0.34%, 0.7) 96.4% -0.3dB 2 578.003 (0.02%,98Hz) 176.83 (1.65%, 2.9) 19.1% -14.4dB 3 903.893 (0.04%,368Hz) 86.90 (5.23%, 4.5) 7.9% -22.1dB Accounted for 98.4% of input signal TEK00006.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.974 (0.01%,12Hz) 225.57 (0.45%, 1.0) 97.1% -0.3dB 2 578.003 (0.02%,98Hz) 180.54 (1.07%, 1.9) 19.4% -14.2dB 3 904.083 (0.04%,384Hz) 81.83 (1.24%, 1.0) 7.5% -22.5dB Accounted for 99.2% of input signal TEK00007.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.982 (0.01%,12Hz) 243.15 (0.60%, 1.5) 96.8% -0.3dB 2 578.041 (0.02%,100Hz) 161.10 (1.07%, 1.7) 17.4% -15.2dB 3 904.362 (0.04%,369Hz) 90.04 (2.55%, 2.3) 7.5% -22.5dB Accounted for 98.6% of input signal TEK00008.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.990 (0.01%,12Hz) 269.18 (0.93%, 2.5) 97.0% -0.3dB 2 578.079 (0.02%,120Hz) 136.35 (1.91%, 2.6) 14.9% -16.5dB 3 903.969 (0.04%,352Hz) 99.69 (8.06%, 8.0) 7.5% -22.5dB Accounted for 98.2% of input signal TEK00009.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.974 (0.01%,12Hz) 308.80 (1.91%, 5.9) 97.6% -0.2dB 2 578.041 (0.02%,124Hz) 130.60 (1.24%, 1.6) 13.9% -17.1dB 3 904.007 (0.04%,374Hz) 91.15 (4.53%, 4.1) 7.4% -22.6dB Accounted for 98.7% of input sig TEK00010.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.964 (0.01%,11Hz) 366.24 (2.94%,10.8) 97.5% -0.2dB 2 578.041 (0.02%,120Hz) 139.75 (1.24%, 1.7) 13.4% -17.4dB 3 903.854 (0.04%,382Hz) 87.76 (3.92%, 3.4) 6.4% -23.9dB Accounted for 98.5% of input signal TEK00011.CSV PK FREQ kHz (Error +/-) Q FACTOR (Error +/-) LEVEL 1 229.836 (0.01%,11Hz) 464.15 (4.53%,21.0) 98.4% -0.1dB 2 577.829 (0.02%,98Hz) 184.60 (0.93%, 1.7) 14.2% -16.9dB 3 903.893 (0.04%,355Hz) 106.04 (1.65%, 1.8) 6.2% -24.1dB Accounted for 99.3% of input signal None of these appear to be duplicates. Could it be that TEK00000.CSV is the coil without resistance, and the rest are posn 0 = TEK00001.CSV posn 1 = TEK00002.CSV ... posn 10 = TEK00011.CSV because that would make sense looking at the above Q factors. TEK00004.CSV and TEK00005.CSV are pretty similar, but then I'd expect them to be as they are near where the current maximum should be. The program reports poor errors on the higher Q runs because the trace ends well before the ringdown is complete. Some pings with half the timebase would help in those cases. -- Paul Nicholson, --
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.