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Electron Charge-to-Mass Ratio

Appendix C: Technical Support, Copy-

15

012-14265A

Appendix C: Technical Support, Copyright, Warranty

For assistance with the equipment or any other PASCO products, contact PASCO as follows:

Copyright Notice

The PASCO scientific manual

 

is copyrighted and all rights reserved. However, permission is granted to non-profit educational 

institutions for reproduction of any part of the providing the reproductions are used only for their laboratories and are not sold 
for profit. Reproduction under any other circumstances, without the written consent of PASCO scientific, is prohibited.

Warranty

For a description of the product warranty, see the PASCO catalog.

Appendix D: Product End of Life Disposal 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 recycle your electronic equipment per your local environmental laws and regulations to 
ensure that it will be recycled in a manner that protects human health and the environment. To find out where 
you can drop off your waste equipment for recycling, please contact your local waste recycle/disposal service, 
or the place where you purchased the product. 

The European Union WEEE (Waste Electronic and Electrical Equipment) symbol (above) and on the product or on its packag-
ing indicates that this product must not be disposed of in a standard waste container.

Address: PASCO scientific

10101 Foothills Blvd.
Roseville, CA 95747-7100

Phone:

+1 916 462 8384 (worldwide)
877-373-0300 (U.S.)

Web:

www.pasco.com

Email:

[email protected]

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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