To do this, I place oil-soaked paper in the middle between two identical light bulbs, through which the currents to be compared flow.
- 1_fett1.JPG (6.41 KiB) Viewed 398 times
- 1_fett2.JPG (5.94 KiB) Viewed 398 times
Grease Spot Photometer
Grease Spot Photometer
With a Grease Spot Photometer or Bunsen Photometer /German Fettfleck Fotometer) you can compare two electrical powers of any alternating and direct currents of any waveform and frequencies up to the GHz range.
To do this, I place oil-soaked paper in the middle between two identical light bulbs, through which the currents to be compared flow.
Rear lamp more power than front lamp:
Front lamp more powerful than rear lamp:
To do this, I place oil-soaked paper in the middle between two identical light bulbs, through which the currents to be compared flow.
Rear lamp more power than front lamp:
Front lamp more powerful than rear lamp:
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Re: Grease Spot Photometer
Same power:
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Joined:Thu Jan 15, 2026 11:13 am
Gone:Wed Feb 25, 2026 2:53 am
Total posts:338
Gone:Wed Feb 25, 2026 2:53 am
Total posts:338