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Instruction Manual

012-14265A

Electron Charge-to-Mass Ratio

Model SE-9629

Brolight Technology Co., Ltd

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Содержание Brolight SE-9629

Страница 1: ...Instruction Manual 012 14265A Electron Charge to Mass Ratio Model SE 9629 Brolight Technology Co Ltd...

Страница 2: ...Information 2 Introduction 3 Background Information 4 Principle of the Experiment 4 Installation and Maintenance 4 Experiment Procedure 10 Appendix A General Specifications 13 Appendix B Teacher s Not...

Страница 3: ...elmholtz Coils and Base SE 9626 2 3 Mirrored Scale 1 4 Tunable DC Constant Voltage Power Supply II 12 V 100 V 200 V SE 9644 1 5 Tunable DC Constant Current Power Supply 3 5 A 6 3 V SE 9622 1 6 Connect...

Страница 4: ...the product in any manner that is not specified by the manufacturer Do not install substitute parts or perform any unauthorized modification to the product Line and Current Protection Fuses For conti...

Страница 5: ...io provides a simple method for measuring e m the charge to mass ratio of the electron The method is similar to that used by J J Thomson in 1897 A beam of electrons is accelerated through a known pote...

Страница 6: ...ium gas at a precisely set pressure The gas atoms are ionized along the length of the cir cular path due to collisions with electrons As a result they are excited and emit light thereby indirectly mak...

Страница 7: ...e way Holding the e m tube by its base align the pins on the tube with the holes in the socket and push the e m tube into the socket Make sure that the tube is firmly in place Note The tube is a thin...

Страница 8: ...ee support rods from the mounting hardware between the two Helmholtz coils Install the Mirrored Scale on a Helm holtz Coil Loosen but do not remove the screws at both ends of the Mirrored Scale Mount...

Страница 9: ...elmholtz Coil Finally connect the red ter minal of the back Helmholtz Coil to the negative terminal of the 3 5 A output on the power supply Note Before connecting the power cords please check that the...

Страница 10: ...for service Cables and Cords Specification Power Cord Length 1 5 m 16 A 250 V Connecting Cable Red EM 9740 Length 0 85 m 10 A 300 V Connecting Cable Black EM 9745 Length 0 85 m 10 A 300 V Note Replace...

Страница 11: ...e Adjust Sets the voltage across the e m tube for both voltage ranges Output Output power Data Interface Connect to the analog channels of the PASCO 850 Universal Interface using the included DIN plug...

Страница 12: ...so that current passes through both coils in the same direction If the electron beam does not curve upward swap the connections on the 3 5 A output terminals on the Power Supply 8 Continue increasing...

Страница 13: ...th this expression for B the initial formula for e m becomes R 158 mm and N 130 turns per coil U Acceleration Voltage R Radius of the Helmholtz coils N Number of turns on each coil 0 Permeability cons...

Страница 14: ...st provide the following power to the e m apparatus Filament 6 3 V AC Accelerating Voltage 120 200 V DC When the electron beam appears use your permanent magnet to bend the beam 2 The socket for the e...

Страница 15: ...ion degree 2 Certifications CE Safety compliance IEC EN 61010 1 Overvoltage category II Degree of protections IP20 Normal energy protection 5 J Item Description Tunable DC Constant Current Power Suppl...

Страница 16: ...N on the coil With this expression for B the initial formula for e m becomes R 158 mm and N 130 turns per coil U Acceleration Voltage R Radius of the Helmholtz coils N Number of turns on each coil 0...

Страница 17: ...sposal Instructions Product End of Life Disposal Instructions This electronic product is subject to disposal and recycling regulations that vary by country and region It is your responsibility to recy...

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