Nipkow experiment 2

thingiverse

The initial test provided a clear understanding of Nipkow's concept. https://www.thingiverse.com/thing:2909460 Next, we place a lens over the window to focus light onto a phototransistor. In his time, Nipkow employed a selenium cell; we use a BPW40, which responds to the entire visible spectrum. The resulting signal will be approximately 10 millivolts. The lens is standard and can be easily sourced online; it's commonly used in VR viewers. An oscilloscope displays the signal, allowing it to be transmitted across the globe. Due to its weak nature, proper amplification is essential. To achieve optimal focus, adjust the sensor-cylinder until you obtain maximum signal strength. This ensures that the focussing is accurate. To eliminate ambient light's influence, shield the back side of the sensor (e.g., apply a drop of black paint).