Photocell
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Photocell
A photocell is an electronic component that detects the presence of light. It is also known as a photoresistor, light-dependent resistor (LDR), or photoconductor. A photocell works by changing its resistance when light falls on it. The resistance decreases as the light intensity increases and vice versa.
Photocells have various applications such as in automatic lighting systems, streetlights, security alarms, and solar panels. They are used to turn on and off lights depending on the ambient light levels. In solar panels, photocells are used to convert light into electrical energy.
Features of Photocell:
- Photocells are highly sensitive to light and can detect even small changes in the light intensity.
- They have a fast response time and can quickly respond to changes in light levels.
- The sensitivity of photocells can be adjusted by varying the voltage across them.
- They are available in different shapes and sizes to suit various applications.
- They are easy to use and do not require any external power source.
MODELS
- Photocell (PC-1) with a spectral range of 540-700nm
- Photocell (PC-2) with a spectral range of 350-950nm
- Photocell (PC-3) with a spectral range of 350-1100nm
