What is the symbol for a magnet?

[gary350]

There are 100s of symbols of lots things but what is the symbol for a magnet?

 

[augustinetez]

Type 'symbol for magnet' in to a search engine and look at the images - basically it looks like a horseshoe - there are many variations on the same basic shape.

 

[Tony Stewart]

The schematic symbol for a magnet is usually represented by the letter "M" with two arrows pointing towards it, indicating the magnetic field lines. Here is an example:


=->M<+=

In some cases, the symbol may also include the polarity of the magnet, indicated by a plus (+) or minus (-) sign.


Electrical schematics are simple logic diagrams for electrical components and do nothing for the parasitic properties of electromagnetic conductors (ESL) and insulators, (ESL,ESR) nor do they show the static or dynamic magnetic factors,

It is wise to add footnotes. A motor might be a circle with M inside so the level of detail in the "Logic Diagram" depends on the intended reader..

There is no universally recognized schematic symbol for a magnet, but there are several ways in which magnets can be represented in circuit diagrams or schematics.

One common way to indicate a magnet in a circuit diagram is to draw a U-shaped or bar-shaped object with the letter "M" inside it. The U-shape or bar-shape represents the physical shape of the magnet, while the letter "M" inside indicates that it is a magnet.

Another way to represent a magnet in a schematic is to use the letter "B" or "H" inside a circle or rectangle. The letter "B" stands for magnetic flux density, while the letter "H" stands for magnetic field intensity. Both of these parameters are related to the presence of a magnet in a circuit.

Additionally, some circuit designers may choose to include a graphical representation of a magnet in their schematic, such as a small image of a U-shaped magnet or a bar magnet. This can help to make the schematic more visually descriptive and easier to understand.

It is important to note that the specific representation used for a magnet in a schematic may vary depending on the context and the preferences of the circuit designer.

 

[Nigel Goodwin]

There are 100s of symbols of lots things but what is the symbol for a magnet?

View attachment 141067

As a magnet isn't an electronic component, why would it have an electronic symbol? - they may be a mechanical symbol for a magnet, but not really relevent on an electronics board.

 

[Tony Stewart]

I recall seeing gas chromatography machines at Perkin Elmers and how they worked with RF coils with a vacuum and sample injected streaming thru the coil in a plasma flame.

Permanent magnets can be used in conjunction with radiofrequency (RF) plasma sources to generate and sustain plasma for various applications, such as plasma etching, thin film deposition, and surface treatment. Of course, CRT's had them for deflection alignment and corner correction.

In an RF plasma system, an electromagnetic field ionizes a gas, creating plasma. The plasma consists of charged particles, such as ions and electrons, and neutral particles, such as atoms and molecules. The charged particles can be accelerated by the electromagnetic field and can be used to modify the surface properties of materials or to deposit thin films.

Permanent magnets can be used in RF plasma sources to improve plasma properties and stability. The magnets are typically arranged in a specific pattern around the plasma chamber, creating a magnetic field that interacts with the charged particles in the plasma.

One important effect of the magnetic field is to confine the plasma near the chamber's center, away from the walls. This reduces the amount of gas that interacts with the walls, which can cause contamination or other unwanted effects.

The magnetic field also enhances the ionization process by increasing the probability of collisions between the gas molecules and the charged particles.

The use of permanent magnets in RF plasma sources can also improve the efficiency of the plasma generation process, by reducing the amount of RF power required to sustain the plasma. This is because the magnetic field can trap the charged particles in specific regions of the plasma, where they can interact with each other and with the gas more effectively, leading to a higher ionization rate and a more stable plasma.

Overall, using permanent magnets in RF plasma sources can improve plasma properties, stability, and efficiency, making them an important component in many plasma processing applications.

 

[Nigel Goodwin]

I recall seeing gas chromatography machines at Perkin Elmers and how they worked with RF coils with a vacuum and sample injected streaming thru the coil in a plasma flame.

Permanent magnets can be used in conjunction with radiofrequency (RF) plasma sources to generate and sustain plasma for various applications, such as plasma etching, thin film deposition, and surface treatment. Of course, CRT's had them for deflection alignment and corner correction.

In an RF plasma system, an electromagnetic field ionizes a gas, creating plasma. The plasma consists of charged particles, such as ions and electrons, and neutral particles, such as atoms and molecules. The charged particles can be accelerated by the electromagnetic field and can be used to modify the surface properties of materials or to deposit thin films.

Permanent magnets can be used in RF plasma sources to improve plasma properties and stability. The magnets are typically arranged in a specific pattern around the plasma chamber, creating a magnetic field that interacts with the charged particles in the plasma.

One important effect of the magnetic field is to confine the plasma near the chamber's center, away from the walls. This reduces the amount of gas that interacts with the walls, which can cause contamination or other unwanted effects.

The magnetic field also enhances the ionization process by increasing the probability of collisions between the gas molecules and the charged particles.

The use of permanent magnets in RF plasma sources can also improve the efficiency of the plasma generation process, by reducing the amount of RF power required to sustain the plasma. This is because the magnetic field can trap the charged particles in specific regions of the plasma, where they can interact with each other and with the gas more effectively, leading to a higher ionization rate and a more stable plasma.

Overall, using permanent magnets in RF plasma sources can improve plasma properties, stability, and efficiency, making them an important component in many plasma processing applications.

None of which suggest a magnet is an electronic component? - hence no electronic symbol.

Makes you wonder why he's even asking?.

 

[Tony Stewart]

When coils are involved, it's hard to avoid magnetic effects even if it is an electrical component.

Magnetic amplifiers are even a thing.

 

[Nigel Goodwin]

When coils are involved, it's hard to avoid magnetic effects even if it is an electrical component.

Magnetic amplifiers are even a thing.

Except he's not looking for a coil, or even an electro-magnet - he asked for a 'magnet', not a magnetic effect.

Presumably it's just another of his pointless questions?.

 

[MaxHeadRoom78]

magnet symbol - Google Search

 

[Lightium]

 

[Externet]

the symbol may also include the polarity of the magnet, indicated by a plus (+) or minus (-) sign.

There is no such thing in a magnet. Poles are N, S.

 

[Tony Stewart]

There is no such thing in a magnet. Poles are N, S.

The plus (+) or minus (-) sign is not used to indicate the polarity of a magnet, but it can be used to indicate the direction of the magnetic field lines in a specific location. This is typically done in the context of magnetic field maps or diagrams, where the direction of the field lines is indicated by arrows and the sign of the arrowhead is used to indicate the polarity of the field (i.e. whether it is a North-seeking or South-seeking field).

I apologize for any confusion my previous statement may have caused and thank you for bringing this to my attention.

 

[Tony Stewart]

Who said there aren't any magnetic symbols? It can be whatever you want it to be as long as it is understood.

 

[Pommie]

How do you connect other components to a magnet? Assuming it's in a schematic.

Mike.

 

[augustinetez]

By magnetism of course