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China Wholesale Helmholtz Coil Pricelist – LEEM-5 Apparatus of Work Function & Specific Charge of Electron – Labor Featured Image
  • China Wholesale Helmholtz Coil Pricelist – LEEM-5 Apparatus of Work Function & Specific Charge of Electron – Labor

China Wholesale Helmholtz Coil Pricelist – LEEM-5 Apparatus of Work Function & Specific Charge of Electron – Labor

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China Wholesale Helmholtz Coil Pricelist – LEEM-5 Apparatus of Work Function & Specific Charge of Electron – Labor Detail:

Description

Thermionic emission, one of its founders was Owen W. Richardson (1879～1959), a famous physicist in England, who discovered the thermionic emission law, namely Richardson law, pointing out the way for designing reasonable electron emission mechanism. His study had a profound impact on development of radio electronics, and won the 1928 Nobel Prize in Physics as a result.

Functions

1. Understand the concept of thermionic electron emission and verify the Schottky effect

2. Understand the concept of work function of a metal

3. Learn how to measure metal work function based on Richardson straight-line method

4. Understand magnetron principle and determine charge-mass ratio (e/m) by magnetron

 

Specifications

Description Specifications
Ideal diode pure Tungsten filament
filament current: 0.400 ~ 0.800 A; accuracy: 1.0 mA
anode voltage: DC 0 ~120 V; accuracy: 0.1 V
Parameters of coil inner radius: r1=24.0 mm
outer radius: r2=36.0 mm
length: L=18.0 mm
number of turns: N=800
Magnetization current 0 ~ 0.800 A

Parts List

Item Qty
Main unit 1
Ideal diode 1
Housing 1
Magnetization coil 1
Wires 8
Manual 1
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China Wholesale Helmholtz Coil Pricelist – LEEM-5 Apparatus of Work Function & Specific Charge of Electron – Labor detail pictures

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All we do is usually affiliated with our tenet Buyer to start with, Belief to start with, devoting about the food packaging and environmental defense for China Wholesale Helmholtz Coil Pricelist – LEEM-5 Apparatus of Work Function & Specific Charge of Electron – Labor , The product will supply to all over the world, such as: Iraq, Israel, panama, We strive for excellence, constant improvement and innovation, is committed to make us the customer trust and the first choice of engineering machinery accessories brand suppliers. Choose us, sharing a win-win situation!
    • We have been engaged in this industry for many years, we appreciate the work attitude and production capacity of the company, this is a reputable and professional manufacturer.
    5 Stars By Molly from Montpellier - 2017.08.28 16:02
    The sales manager has a good English level and skilled professional knowledge, we have a good communication. He is a warm and cheerful man, we have a pleasant cooperation and we became very good friends in private.
    5 Stars By Jamie from Maldives - 2017.01.28 18:53
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