Planck’s Constant Measuring Instrument China

Planck’s Constant Measuring Instrument China

90,000.00৳ 

Brand: WANT

Origin: Jiangsu, China

Model: P13057

 

10 in stock

P13057, PLANCK'S CONSTANT MEASURING INSTRUMENT

STRUCTURE
The structure is showed as Fig1. It is mainly composed of a light source, a light receiving Dark-box (phototube inside),a DC
amplifier, five pieces of color filter. The light source and the receiving dark-box are installed on the guide, the distance
between them can be adjusted and showed on the scale.

Wave length of color filter
635mm, 570mm, 540mm, 500mm, 460mm.
Light source
12V/35W halogen tungsten lamp
Sensitive component
Vacuum phototube
Dark-current
less than 0.003uA
Precision of accelerate voltage
less than ±2%
Measuring error
less than ±15% compared with the recognized value( h=6.62619*1034J.S)
Power supply
220±22V, 50Hz±1Hz

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