Microwave Oven Technology 1.0.0

A surprisingly good and readable instructional primer from Bosch on basic microwave oven technology. It's not just about Bosch microwaves-- it's about how all TCR microwave ovens work. Some of the more noteworthy topics covered: 

Table of Contents
Physical principles . . . . . . . . . . . . . . . . . 3
Heat as a form of energy . . . . . . . . . . . . . . . . . . . . . 3 Microwaves as heat energy . . . . . . . . . . . . . . . . . . . 4 Microwaves in the frequency spectrum . . . . . . . . . 4 Microwave characteristics . . . . . . . . . . . . . . . . . . . . 5 Microwaves penetrate certain materials . . . . . . . . 6 Microwaves are absorbed . . . . . . . . . . . . . . . . . . . . 7 Penetration depth and absorption capacity
at a given frequency . . . . . . . . . . . . . . . . . . . . . . . . . 7 Molecular polarisation in an electrostatic field . . . 8 Heat generation and distribution in foods . . . . . . . 9
Generating electromagnetic oscillations 11
Oscillating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Resonance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Frequency and wavelength . . . . . . . . . . . . . . . . . . . 12
Microwave generation . . . . . . . . . . . . . . 12
Construction of a magnetron . . . . . . . . . . . . . . . . . . 12 Functional principle of a magnetron . . . . . . . . . . . . 13 Voltage doubler circuit . . . . . . . . . . . . . . . . . . . . . . . 16 Functional principle of voltage doubler . . . . . . . . . 16 Protective devices for high-voltage transformer . . 18 Short circuit-proof transformer design . . . . . . . . . . 18 Protective diodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Controlling output power . . . . . . . . . . . . . . . . . . . . . 20 Measuring output power . . . . . . . . . . . . . . . . . . . . . . 22
 

PUB 58300000128377