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Old 12-08-2009, 06:57 AM
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Test #15

Hi everyone,

Here is TEST #15 .... This is a re-test of the experimental 10 Ohm load resistor that is 76mm Outside Diameter with 18 turns of #20 AWG Ni-Cr Type "A" wire with 1mm gap spaceing. The 76mm Borosilicate Tubing has a inside diameter of 66.5mm so the wall thickness is 4.75mm or about 3/16" inches ( a lot to heat ) and will have to do a resistor "thermo profile" to see what the actual results are. This is another one (1) hour test with 40us and 2us readings taken every six (6) minutes for a total of eleven (11) readings or twenty two (22) Image and Data files for one (1) hour. This experiment was the second time testing the "HUGE" 76mm load resistor with a smaller 10 Ohm 100 watt "Wire Wound" resistor with a GE #T464 28 volt lamp connected for tuning, varying in brightness at different frequency's .....


Test15_Resistor_Set-up_12-07-09.jpg Image File


TEST #15

Rosemary Ainslie COP>17 Heater Circuit
"Quantum" October 2002

Replication Components -

1) International Rectifier - IRFPG50 HEXFET® Power MOSFET
w/ Sil-Pad insulator between Mosfet and Heat Sink

2) Fairchild Semiconductor - NE555N Timer

3) Vishay Spectrol - SP534 Percision Potentiometer/ 10-turn 2-Watt

4) Exide Technologies Battery "Liquid Lead Acid" Model # GT-H - TRACTOR 12V 12Ah CCA 235

5) CSB Battery Company "Gel Lead Acid" #GP 1270 F2 / 12 Volt 7.0 Ah

6) Prototype 76mm Load Resister 10 ohm + - 5%

7) "Shunt" - Caddock High Performance Film Resistor "non-inductive" 30 watt type MP930-0.25-1%


Temperature Measurements -

Fluke 62 "mini" IR Themometer ( used maximum reading on each componenet )

Digital Multi Meter -

Fluke 87 DMM true RMS

************************************************** *******

Channel 1 - Mosfet source shunt
Channel 2 - Mosfet drain
Channel 3 - 555 Timer pin #3
Channel 4 - 24 VDC "Liquid" Lead Acid Battery Bank



Original_Test__15_12-07-09.zip Data File


1_40us

1_40us_12-07-09.png Image File
1_40us_12-07-09.CSV Data File
1_20us
1_20us_12-07-09.png Image File
1_20us_12-07-09.CSV Data File


2_40us

2_40us_12-07-09.png Image File
2_40us_12-07-09.CSV Data File
2_20us
2_20us_12-07-09.png Image File
2_20us_12-07-09.CSV Data File


3_40us

3_40us_12-07-09.png Image File
3_40us_12-07-09.CSV Data File
3_20us
3_20us_12-07-09.png Image File
3_20us_12-07-09.CSV Data File


4_40us

4_40us_12-07-09.png Image File
4_40us_12-07-09.CSV Data File
4_20us
4_20us_12-07-09.png Image File
4_20us_12-07-09.CSV Data File


5_40us

5_40us_12-07-09.png Image File
5_40us_12-07-09.CSV Data File
5_20us
5_20us_12-07-09.png Image File
5_20us_12-07-09.CSV Data File


6_40us

6_40us_12-07-09.png Image File
6_40us_12-07-09.CSV Data File
6_20us
6_20us_12-07-09.png Image File
6_20us_12-07-09.CSV Data File


7_40us

7_40us_12-07-09.png Image File
7_40us_12-07-09.CSV Data File
7_20us
7_20us_12-07-09.png Image File
7_20us_12-07-09.CSV Data File


8_40us

8_40us_12-07-09.png Image File
8_40us_12-07-09.CSV Data File
8_20us
8_20us_12-07-09.png Image File
8_20us_12-07-09.CSV Data File


9_40us

9_40us_12-07-09.png Image File
9_40us_12-07-09.CSV Data File
9_20us
9_20us_12-07-09.png Image File
9_20us_12-07-09.CSV Data File


10_40us

10_40us_12-07-09.png Image File
10_40us_12-07-09.CSV Data File
10_20us
10_20us_12-07-09.png Image File
10_20us_12-07-09.CSV Data File


11_40us

11_40us_12-07-09.png Image File
11_40us_12-07-09.CSV Data File
11_20us
11_20us_12-07-09.png Image File
11_20us_12-07-09.CSV Data File



THERMAL - IMAGE - DATA KEY


TEST #15_Key_12-07-09.jpg Image File



Channel-1_Snap_Shot_12-07-09.png Image File

Channel-2_Snap_Shot_12-07-09.png Image File

Channel-4_Snap_Shot_12-07-09.png Image File

Channel-3_Snap_Shot_12-07-09.png Image File



100ns

100ns_12-07-09.png Image File

4us_12-07-09.png Image File

2us_12-07-09.png Image File

400ns_12-07-09.png Image File

All Images and data by a Tektronix TDS 3054C from the Tektronix Corporation

Glen
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Last edited by FuzzyTomCat; 12-09-2009 at 10:00 AM. Reason: Added Information