For industrial Microwave Oven Repair Service, this is the first known vacuum tube. And the first vacuum amplifying tube, the triode invented by Lee De Forest in 1906. The physical and electromagnetic properties of the magnetron are complex. It uses a powerful external magnetic field that affects the flow of electrons in a circular resonant cavity to produce 110 watts at a gigahertz (GHz) frequency.
What is a Magnetron?
For industrial microwave oven repair service, See the reference for different ideas on the magnetron. This industrial oven developed in England during World War II. The magnetron was a closely guarded secret. It is really the main part of radars: compact enough to be used in airplanes. And able to work in the range of 500 megahertz (MHz), which is a high frequency at that time. To provide the necessary resolution.
- Will the Magnetron of the Microwave Oven Soon Become Obsolete?
- Engineering
- Increase
- Energy Management
- RF and air
The need for magnetrons has decreased with the development of solid state power amplifiers (SSPAs) capable of reaching high GHz frequencies. The magnetron is turned into a museum of electronics. Except for the power of several kilowatts (kW). But even in these cases, solid state devices dominate.
That said, the magnetron is still around and continues to grow at a rapid pace: it’s a staple in consumer microwave ovens and many commercial ovens used for cooking and drying.
How is it Possible?
In short, the magnetron is very expensive. It provides full performance as an RF source that consumes hundreds of watts at 2.45 GHz, which is designed with high volume for high consumption. Both amazing and revealing of all the possibilities of great invention, the source of WWII microwave power is now a common use in heart ovens that sell for less than $100 for the main types. and between 500 and 1000 USD for cargo and 1000 USD a more powerful version. But even with this work, the magnetron’s days may be numbered.
Manufacturers of solid state power generators (SSPAs) see these devices as a market with potential for high growth. Not only because they can replace the work of magnetrons. Of course, microwave ovens based on magnetrons do not have their weaknesses, which is evident when one looks closely at these devices.
For example, it is difficult to change the output density. When the industrial microwave oven is set to medium level, magnetron has pulse width modulation to produce the power level as average power. But pulse width modulation duty cycle is long (on the order of ten seconds), which leads to inefficiency for the duration of the power cycle.
There is also the issue of turning the RF output so that it fills the entire oven cavity. This is why you should stir the food in the middle of the heating process, which many people do not do. Even with the built-in convection in most microwave ovens.
Performance Data Collection
Some apps offer features (optional or standard) that appeal to professionals. For example, industrial microwave ovens can use modules for collecting and recording information (numbers, events, temperatures, etc.) in real time. In the context of management by the licensee, all data collected and stored can be provided.
