PM meaning in Electronics ?

Answer:

What is Pulse Modulation mean?

In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a separate signal called the modulation signal that typically contains information to be transmitted. For example, the modulation signal might be an audio signal representing sound from a microphone, a video signal representing moving images from a video camera, or a digital signal representing a sequence of binary digits, a bitstream from a computer. The carrier is higher in frequency than the modulation signal. The purpose of modulation is to impress the information on the carrier wave, which is used to carry the information to another location. In radio communication the modulated carrier is transmitted through space as a radio wave to a radio receiver. Another purpose is to transmit multiple channels of information through a single communication medium, using frequency division multiplexing (FDM). For example in cable television which uses FDM, many carrier signals carrying different television channels are transported through a single cable to customers. Since each carrier occupies a different frequency, the channels do not interfere with each other. At the destination end, the carrier signal is demodulated to extract the information bearing modulation signal.

A modulator is a device or circuit that performs modulation. A demodulator (sometimes detector) is a circuit that performs demodulation, the inverse of modulation. A modem (from modulator–demodulator), used in bidirectional communication, can perform both operations. The frequency band occupied by the modulation signal is called the baseband, while the higher frequency band occupied by the modulated carrier is called the passband.

In analog modulation an analog modulation signal is impressed on the carrier. Examples are amplitude modulation (AM) in which the amplitude (strength) of the carrier wave is varied by the modulation signal, and frequency modulation (FM) in which the frequency of the carrier wave is varied by the modulation signal. These were the earliest types of modulation, and are used to transmit an audio signal representing sound, in AM and FM radio broadcasting. More recent systems use digital modulation, which impresses a digital signal consisting of a sequence of binary digits (bits), a bitstream, on the carrier. In frequency shift keying (FSK) modulation, used in computer buses and telemetry, the carrier signal is periodically shifted between two frequencies that represent the two binary digits. In digital baseband modulation (line coding) used to transmit data in serial computer bus cables and wired LAN computer networks such as Ethernet, the voltage on the line is switched between two amplitudes (voltage levels) representing the two binary digits, 0 and 1, and the carrier (clock) frequency is combined with the data. A more complicated digital modulation method that employs multiple carriers, orthogonal frequency division multiplexing (OFDM), is used in WiFi networks, digital radio stations and digital cable television transmission.

In music production, the term modulation has a different meaning: it is the process of gradually changing sound properties in order to reproduce a sense of movement and depth in audio recordings. It involves the use of a source signal (known as a modulator) to control another signal (a carrier) through a variety of sound effects and methods of synthesis. With singers and other vocalists, modulation means to modify characteristics of their voices during a performance, such as loudness or pitch.

reference

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Philosophy Methodology	Academic & Science
Dennis J. Picard Medal for Radar Technologies and Applications	Academic & Science
Picometre	Academic & Science
Process Manager	Academic & Science
Philosophical Mechanics	Academic & Science
Power Meter	Academic & Science
Plumbing Mechanical	Business
Pinze Mobili	Business
Prime Market	Business
Performance Measurement	Business
Preserve Manufacturer	Business
People Motivation	Business
Production Management	Business
Problem Management	Business
Process Management	Business
Problems Major	Business
Pittsford Monroe	Business
Pulver Metarlurgisch	Business
Previous Model	Business
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Proactinium	Chemistry
Promethium	Chemistry
People Motivator	Community
Preservation Magazine	Community
Place Marker	Community
Performance Media	Community
Precious Moments	Community
Prospective Member	Community
Pre Midnight	Community
Pianella Mandoline	Community
Paul Murray	Community
Price Milburn	Community
Paul Mccartney	Community
Patrick Madrid	Community
Pappa Meyer	Community
Practice Management	Community
Phase Modulation	Computer and Networking
Performance Management	Computer and Networking
Processable Mode	Computer and Networking
Peg Material	Computer Hardware
Physical Memory	Computer Hardware
Pocket Message	Computing
Partial Match	Computing
Personal Mainframe	Computing
Private Mail	Computing
Physical Machine	Computing
Pocket Mirror	Computing
Poultry Man	Computing
Product Manual	Computing
Pikon Message	Computing
Production Metadata	Computing
Pattern Match	Computing
Protected Mode	Computing
Paper Mario	Computing
Private Messaging	Computing
Power Mac	Computing
Power Management	Computing
Saint Pierre and Miquelon	Country Names
Permanent Magnet	Electronics
Pulse Modulation	Electronics
Prototype Model	Electronics
X Window Pixelmap 8-bit Text Bitmap Graphics	File Type
Presentation Manager Bitmap Graphics File	File Type
Perl	File Type
Personal Mobility	File Type
Point Mix	General
Poor Man	General
Party Mode	General
Point Mixes	General
Pig Molester	General
Post Meridiam	General
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Parabolic Metal	General
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Palette And Masque	General
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PEI Magazine	General
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Previously Moderated	General
Pairs Master	General
Pollution Minimum	Governmental
Post-Marketing	Governmental
Post Maritime	Governmental
President's Medal	Governmental
Premeditated Murderer	Governmental
Police Magistrate	Governmental
Petty Misdemeanor	Governmental
Priority Mail	Governmental
Planning Meeting	Governmental
President's Meeting	Governmental
Prime Minister	Indian Government
PALAM	Indian Railway Station
Pro Memoria	International
Pocket Miners	Internet
Perfect Man	Jobs
Post Man	Jobs
Pay Me	Jobs
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Periodically Missing	Jobs
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Piranha Manager	Jobs
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Power Matrix	Maths
Plus and Minus	Maths
Plus Or Minus	Maths
Power Method	Maths
Polygonal Map	Maths
Pseudo Manifold	Maths
Picometer	Measurement Unit
Petameter	Measurement Unit
Petametre	Measurement Unit
Post Mile	Measurement Unit
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Per Metre	Measurement Unit
Past Master	Measurement Unit
Particle Measure	Measurement Unit
Perceptual Motor	Medical
PolyMyositis	Medical
petit mal (form of epilepsy)	Medical
Post Mortem	Medical
Petit Mal	Medical
Pain Management	Medical
Pre Menstrual	Medical
Pesky Mouse	Medical
Petit Mal epilepsy	Medical
PaceMaker	Medical
Papillary Muscle	Medical
Protein Metabolite	Medical
Partial Mastectomy	Medical
Partial Meniscectomy	Medical
Partial Mole	Medical
Particular Matter	Medical
Pectoralis Major	Medical
Perinatal Mortality	Medical
Plasma Membrane	Medical
Point Mutation	Medical
Polarising Microscopy	Medical
Poor Metaboliser	Medical
porokeratosis of Mibelli	Medical
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Posterior Maxillary	Medical
Posterior Mesencephalon	Medical
Posterior Mitral	Medical
posteromedial	Medical
postmenopausal	Medical
Practice Manager	Medical
premotor	Medical
Psoas Major	Medical
Pterygoid Muscle	Medical
Pulmonary Macrophage	Medical
Purulent Meningitis	Medical
pyloromyotomy	Medical
Portable Monitor	Medical
Pubococcygeal Muscle	Medical
Power Meditation	Medical
Perceptual and Motor	Medical
Prime Moose	Medical
Progress Monitor	Medical
Pardon My ....	Messaging
Personal Message	Messaging
Private Message	Messaging
Project Management	Military and Defence
Bureau of Political-military Affairs (dos)	Military and Defence
Parallel Track Multiunit	Military and Defence
Passage Material	Military and Defence
Patient Movement	Military and Defence
Peacemaking	Military and Defence
Political-military Affairs	Military and Defence
Preventive Medicine	Military and Defence
Program Management	Military and Defence
Pm0	Military and Defence
Pm1	Military and Defence
Polic A Militar	Military and Defence
Preventative Maintenance	Military and Defence
Powder Maggots	Military and Defence
Provost Marshal	Military and Defence
Planning Module	Military and Defence
Pulse Modulated	Military and Defence
Personal Media	Networking
Php (php Hypertext Preprocessor) Mime (multipurpose Internet Mail Extensions)	Networking
Palm Mute	Networking
Particle Multiplication	Physics Related
Particulate Material	Physics Related
Particulate Matter	Physics Related
Pere Marquette Railway (CSX Transportation)	Regional
Pere Marquette	Regional
Pattern Matching	Softwares
Perl Module	Softwares
Presentation Manager	Softwares
Plot Manager	Softwares
Program Module	Softwares
Pagemaker	Softwares
Powerful Project Management Toolset for Project Manager	Softwares
Program Manager	Space Science
Payload Management	Space Science
Payload Midbody	Space Science
Performance Monitor	Space Science
Preventive Maintenance	Space Science
Project Manager	Space Science
Planetary Mapper	Space Science
Processor Module	Space Science
Penalty Minutes	Sports
Proper Motion	Sports
Performance Monitoring	Telecommunication
Pacific Meridian	Time
Post Meridiem	Time