Power Study DIY Power Meter Ideas Video
For relative measurements or one can document a power curve. Peltier Device painted black. Metal over?
This experiment worked out to around a 60 pct absorption factor.
Calibrate the resistor to give some semblance of a direct ration to the power of
the diode ouput under test.
A MA meter might be a simpler path.
Generates .16volts out with a 2 watt laser Voltmeter Current Meter
Power off 9 volt battery. Thin red line: positive of instrument power supply (9volt positive) Thin black wire: negative of the power supply of the instrument, also a common ground wire (9 volt negative) Thin yellow wire: measured voltage positive (black wire peltier device when running in reverse as heat sensor) Thick red line: positive of the current test, in series with the negative of the load (peltier red wire when running in reverse as heat sensor) Thick
black wire: negative of the current test, connected to the negative of
the load power supply (red peltier wire via a (?)ohm resistor )
60pct absorption factor observed using black board paint.
Use power supply to calibrate or known power led diode.
Thermistor?
Current Meter
Voltmeter Calibrate with light bulb or other peltier device?
