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Quick Start Manual

3B SCIENTIFIC PHYSICS 1023095, Quick Start Manual

The 3B SCIENTIFIC PHYSICS 1023095 is an innovative product designed to enhance your understanding of physics. Seamlessly start your journey with the included Quick Start Manual, available for free download from our website. Unlock the full potential of this product by utilizing the comprehensive manual to navigate its features effortlessly.

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3B Scientific GmbH ▪ Ludwig-Erhard-Str. 20 ▪ 20459 Hamburg ▪ Germany ▪ www.3bscientific.com

Subject to technical amendments

© Copyright 2021 3B Scientific GmbH

Fig. 3 Experiment set-up for Franck-Hertz tube with 2 digital voltmeters

Fig. 4 Franck-Hertz curve

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Summary of Contents for 1023095

Page 1: ...d personnel Before putting the equipment into operation con firm it is compatible with the local mains voltage Before setting up or starting any experiments check the apparatus for any damage In the event of any malfunction defect or visi ble damage switch off the equipment imme diately and secure it against any inadvertent use The instrument may only be connected to the mains via a socket that ha...

Page 2: ...ered alumina ring A fixed attenuating resistor 10 is inserted between the sockets for the accelerating voltage and for the anode of the tube This protects the tube in the event of excessive voltage occur ring due to arcing The voltage drop across this re sistor can be neglected when measurements are being made Heating chamber The heating chamber serves to establish the va pour pressure inside the ...

Page 3: ...indi rectly heated cathode requires about 90 sec onds to warm up once the voltage is applied Turn on the heating chamber Set a tempera ture of about 180 C and wait for the tube to warm up about 5 to 10 minutes Set the minimum acceleration voltage to zero slowly increase the maximum accelera tion voltage to 80 V Do not however increase the accelerating voltage so much that self discharge no longer ...

Page 4: ... accelerating voltage must be lowered immediately If it should be necessary to map further maxima the temper ature of the furnace must be increased before hand Optimization of the countervoltage Figures 5 b and 5 c show a too steep or too flat curve with few maxima The countervoltage de termines the slope of the curve The greater the countervoltage the flatter the rise In combination with the acce...

Page 5: ... regulations for the disposal of elec trical equipment will ap ply If Frank Hertz tubes are to be disposed of local regulations applying to the disposal of mercury must be followed Fig 1 Schematic of set up for measuring the Franck Hertz curve for mercury C cathode G grid A collector elec trode Fig 2 Experiment set up for Franck Hertz tube with Hg filling F K G A E X Y E F K A ...

Page 6: ...Str 20 20459 Hamburg Germany www 3bscientific com Subject to technical amendments Copyright 2021 3B Scientific GmbH Fig 3 Experiment set up for Franck Hertz tube with 2 digital voltmeters Fig 4 Franck Hertz curve F K G A E E F K A X Y ...

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