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What meaning did these abbrevations stand for?

03/23/2007 4:00 AM

No matter where you are, you will often see many abbrevation in books, magzine and documents and labels etc. Some of them are unique but most of others are very confusion so as to misunderstand and maybe lead to joke.
My electric knowledge is very elementary and I met once not long before on the forum. Someone may be remember at once as soon as I metion now. "CT" in a post. he want to make one and hnow its principle. Have a guess pls,everybody, do you know what I think of the ct? I thought of " computer tomography" at once. as I hve ever repaired and dealed with some simple real time imaging machine, I think its large and complex enough at present, and cannt be explained by several words.it will concerned with much knowledge like HV and HF power,motor control, transportantion system and computer graphics processing etc. from the thread he seems just to know the current relation. it seems only a current sensor or somethnk like it else. I asked what it the "ct"? returned impatient "current transducer". oh, I see, thats easy. I can help at the very spot. transformer type or hall type? We used, wired and selled, of cause I can right offer some information more or less.
This is a simple example, from this, you can read several abbrevation like "CT", "HV", "HF" etc. now most of us out there will know its concept, but maybe someone still read these as another concept, for example, HF can be considered as "High fortune right" or others else.
So I think if we could list here as more possible as we could come across the abbrevation somewhere or in our work daily? We are from all of the world, there will maybe interesting.

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#1

Re: What meaning did these abbrevations stand for?

03/23/2007 4:23 AM

Let's start, I shall put down some at first and holpe they are useful.
NDT, nondestructive test. a test method of no destroy material and can get its inner structure information. similarly.
NDE, NDI, means nondestructive evaluation, nondestructive inspection.
RT, radiographic test, use x-ray, or r-ray radiation penetrate material to get image on film or CRT, LCD monitor through sensor. it use widly in pipe, vessel, machenism etc manufactuers.
CRT, cathod radiation tube. LCD, liquid crystal display.
UT, ultrosanic test, use ultrosanic wave's reflection to position material or parts fault. it divided into several method: A scan, B scan, C scan and P scan etc. now we can config with computer to get stereo graphic.
MT, magnetic field test. use magnetic particle under strong magnetic field to show and locate fissure of parts surface.
ET, eddy test. use eddy produced by high frequency current to detect fault of pipe, tube or plate etc. mainly use for thin wall.for example less than 7mm etc.
PT, penetrate test, use liquid soluted some colored tiny particle spray on surface of parts.
IR, infrared ray radiation or infrared image equipment test. according to temperature defferent to image on lcd or crt like a vedio camera.
RTIS, real time image system,
VFD, variable frequency device or inverter. (not volunteer reserve decoration.)
CT, compute tomographic or current transducer
GF, graphics format. there are lots of formats such as gif, bmp, jpeg, tif, p...
PM, project management
ERP, enterprise resource plan or enterprise resource project management
IPMA, international project management association
ISO, international standards orgnazition
IEC, international electric committee
ASME, american society of machinery engineers
IEEE,international electric and electronic engineer society
UL, underwriters' laboratiries
DIN, germany industrial standards, germany film sense speed unit.
JIS, japanese industrial standards
BSI, british standards institution
SMPTE, american society of motion picture and tv enginerrs; a kind of time code recorded on medium.
NZR, nonzero recording.
Kv, kilo votage
mV millivotage
mW, milliwatt
MW, megawatt
mA, milliampere
GP, gererator plant
3P, 3 phases
HP, horse power
MPU, micro processor unit, uP
GPS,
HD,
CD,
DVD,
OS,
EG, haha electronic games. last century I played it day and night, from ground to bed... I remember the cpu is 6502 as same as in Apple II and programme is fixed in fireware and display on tv set.
continue...

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#2
In reply to #1

Re: What meaning did these abbrevations stand for?

03/23/2007 8:21 PM

Typical, as relating to Electrical issues anyway;

RT = Real Time

CRT - close. Cathode RAY tube.

UT - don't know for sure, but in relation to molded case circuit breakers it would mean Undervoltage Trip

MT = sometimes used as an abbreviation for Motor

ET - don't know

PT = Potential Transformer, i.e. voltage transformer used for metering

IR = Infra Red, (no "ray", but "radiation" is implied without necessarily stating it)

RTIS = Real Time Information System

VFD = Variable Frequency Drive; also means Vacuum Fluorescent Display

CT = Current Transformer

GF = Ground Fault (you may know it as earth fault, earth leakage)

PM = Permanent Magnet, can also mean Preventative Maintenance depending on context

ASME = American Society of Manufacturing Engineers

GP = General Purpose, as in not necessarily heavy duty, not robust

3P = 3 pole. 3 Phase is usually abbreviated 3Ph

GPS = Global Positioning System, sometimes used for Ground Protection System

HD = Heavy Duty (robust); sometimes misused to mean HID for High Intensity Discharge relating to lighting.

CD = Compact Disc, also means Cross Dresser here in San Francisco

DVD = Digital Versatile Disc (most people think it means Digital Video Disc but that is incorrect)

OS = operating Systems (i.e. MS DOS, OS2, Unix, Linux etc.)

EG = Electro - Galvanized, as compared to HDG, Hot Dip Galvanized. Depending on context, it can also mean "example given", but is usually abbreviated e.g. in that case, e.g.

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#3
In reply to #2

Re: What meaning did these abbrevations stand for?

03/24/2007 12:47 AM

RTOS - Real Time Operating System

HDD - Hard Disk Drive

FDD - Floppy Disk Drive

I2C - Inter IC Communication

TCP - Transmission Controll Protocol

IP - Internet Protocol

HVDC - High Voltage DC

HVAC - High Voltage AT

GPRS - Global Pocket Radio System

GSM - Global Service Mobile

CAN - Controller Area Network

USART - Universal Synchronous Asynchronous Receiver Transmitter

SPI - Serial Peripheral Interface

ASICII - American Standard Institution Code for Information Interchange

thats all for now and i will add more soon..............

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#8
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Re: What meaning did these abbrevations stand for?

03/24/2007 1:17 PM

HVAC also stands for Heating Ventilation and Air Conditioning.

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#21
In reply to #3

Re: What meaning did these abbrevations stand for?

03/27/2007 5:30 PM

hvac here should be more specific High Voltage Alternating Current

and hvdc...High Voltage Direct Current

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#31
In reply to #21

Re: What meaning did these abbrevations stand for?

03/29/2007 4:20 AM

tHANKS EngX for correcting it .. i didnt have enough time to correct it thats why sorted AC and DC

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#28
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Re: What meaning did these abbrevations stand for?

03/29/2007 4:06 AM

OEM - Original Equipments Manufacture

EDS – Electronics Design Service

EMS – Electronics Manufacturing Service

POSIX – Portable Operating System Interface uniX

ASCII – American Standard Code for Information Interchange

ASIC –

PIN – Postal Index Number

PIN – Personal Identification Number

RBC – Red Blood Cell

WBC – White Blood Cell

CT – Computer Tomography

ECG – Electro Cardio Grapy

EEG – Electro Encephalo Grapy

EMG – Electro Myo Grapy

ERG - Electro Retino Grapy

EOG - Electro Oculo Grapy

UV – Ultra Voilet

US – Ultra Sonic

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#14
In reply to #2

Re: What meaning did these abbrevations stand for?

03/26/2007 11:55 PM

thax, you correct some mistake of mine. very good.

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#7
In reply to #1

Re: What meaning did these abbrevations stand for?

03/24/2007 12:22 PM

CT center tap (of tranformer)

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#9
In reply to #1

Re: What meaning did these abbrevations stand for?

03/26/2007 5:19 AM

What about "TLA"?

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#12
In reply to #9

Re: What meaning did these abbrevations stand for?

03/26/2007 10:56 AM

From Railway engineering:

FPL - facing point lock

AVB - automatic vacuum brake

In line with certain aspects of humour in this part of the world, many former railway companies acquired nicknames to go with their company initials as presented on the rolling stock and locomotive fleet:

GWR - Great Western Railway or Great Way Round, or Gresley Was Right

LMS - London, Midland & Scottish, or Late, Mouldy & Slow.

LNER - London & North Eastern Railway, or Late & Never Early Railway

M&GN - the Midland & great Northern (Joint Railway), or Muddle & Go Nowhere.

SDJR - Somerset & Dorset Joint Railway, or Slow, Dirty & Jolting Railway

OWW - Oxford, Worcester & Wolverhampton (Railway), or Old Worse & Worse.

Particularly unfortunate in this respect were the Swansea Harbour Trust, and the Weston, Clevedon & Portishead, whose initials in themselves were sufficient to defy all further attempts at desecration...

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#16
In reply to #12

Re: What meaning did these abbrevations stand for?

03/27/2007 9:26 AM

Don't forger

NTSC meaning Never The Same Colour

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#4

Re: What meaning did these abbrevations stand for?

03/24/2007 8:59 AM

I have just one thing to say CRIMINAL

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#10
In reply to #4

Re: What meaning did these abbrevations stand for?

03/26/2007 9:05 AM

How about NFW?

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#38
In reply to #10

Re: What meaning did these abbrevations stand for?

04/04/2007 7:50 PM

Now found wanting.

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#5

Re: What meaning did these abbrevations stand for?

03/24/2007 9:32 AM

Abbreviations for technical and non-technical terms are used in various fields worldwide and the result is they may differ in both spelling and meaning. There are published national standards and dictionaries of technical terms but, in my view, it is pointless to attempt to define universal abbreviations.

A far better (and universally accepted practice) is to avoid using an abbreviation until the word has been spelled out completely and the associated abbreviation defined. For example, A current transformer (CT)........................Thereafter CT can be used in the article, paper or post without confusion.

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#6
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Re: What meaning did these abbrevations stand for?

03/24/2007 11:44 AM

Bluestone is correct and it is very helpful to supply the complete filled out version in the first instance. Another technique is the one I used in my earlier post where the acronym CRIMINAL is actually a link and if you click on the link it will take you to a full definition.

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#11
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Re: What meaning did these abbrevations stand for?

03/26/2007 10:41 AM

Finally, someone said it.

Most abbreviations are field-of-use informative. For most computer or electronics abbreviations, the same abbreviations mean something entirely different to a chemist or a medical doctor. HF, for example would mean hydrofluoric acid to a chemist or chem engineer. The accepted standard, when one is not writing for a specific application (i.e., a textbook on a specific subject), is to define each abbreviation the first time it is used, or to refer to an appendix for definitions of abbreviations used.

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#39
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Re: What meaning did these abbrevations stand for?

04/04/2007 7:52 PM

Surely not it is hydrogen fluride.

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#13

Re: What meaning did these abbrevations stand for?

03/26/2007 9:40 PM

While all that is true, I might point out that this is posted in the ELECTRICAL ENGINEERING forum!

Context is everything.

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#15

Re: What meaning did these abbrevations stand for?

03/27/2007 3:40 AM

I agree to bluestone, although this is electric forum, but the visitors are from very different field, so they will have differnt idea for the same abbrevation.

another example: PID. we know very well a way of control in engineering. but we can also thnk it as piping instruments diagram. they are very differnet.

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#41
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Re: What meaning did these abbrevations stand for?

04/15/2007 5:05 PM

That is actually abbreviated P&ID, specifically to differentiate it from PID because both terms are used in the same industry.

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#17

Re: What meaning did these abbrevations stand for?

03/27/2007 9:34 AM

Just out of curiosity, did anybody bother to actually follow the link that is associated with my CRIMINAL acronym

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#18
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Re: What meaning did these abbrevations stand for?

03/27/2007 9:46 AM

Yes.

Acronyms are on the Red List, though it's OK as they were not discharged to a watercourse.

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#19
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Re: What meaning did these abbrevations stand for?

03/27/2007 1:04 PM

I did and just happen to agree.

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#20
In reply to #19

Re: What meaning did these abbrevations stand for?

03/27/2007 2:39 PM

Thanks for the response Bluestone, at least I know going to the trouble of putting the hyperlinks in is not a total waste to time.

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#22
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Re: What meaning did these abbrevations stand for?

03/27/2007 9:46 PM

Hi, Masu, I visit your that thread posted on 1.18. its wonderful acronym. I know there are lots of such acronym which of some are very different from its original meanning.

mine thread is same as yours I think, butr we couldnt visit by the time the taiwan earthquake and the optical fibre was broken. we hard to access to the room.

-----Just out of curiosity, did anybody bother to actually follow the link that is associated with my CRIMINAL acronym---------

nasa and ...

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#23
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Re: What meaning did these abbrevations stand for?

03/28/2007 3:22 AM

PCMCIA :- People Can't Memorise Computer Industry Acronyms

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#24
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Re: What meaning did these abbrevations stand for?

03/28/2007 3:25 AM

WOM - Write-only memory - the bin?

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#25
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Re: What meaning did these abbrevations stand for?

03/28/2007 5:32 AM

CFC- Circular Filing Cabinet, also the rubbish bin

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#26
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Re: What meaning did these abbrevations stand for?

03/28/2007 5:35 AM

Interesting. In other fields CFC stands for chlorofluorocarbons.

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#27

Re: What meaning did these abbrevations stand for?

03/28/2007 9:41 PM

there will be lots of interesting abbrevation especially in advertisement. some of them is interesting in some area, but in other area will be considered very opposite. of cause their produce advertised will be reduced selling in that area.

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#29

Re: What meaning did these abbrevations stand for?

03/29/2007 4:08 AM

EMF – Electro Motive Force

MMF – Magneto Motive Force

RMF – Rotating Magnetic Field

RMS – Root Mean Square

CT – Current Transformer (or) Current Transducer

PT – Potential Transformer (or) Potential Transducer

VT – Variable Transformer

VARIAC – VARIable AC (Auto Transformer)

Hz – Hertz

HF – High Frequency

LF – Low Frequency

MF – Medium Frequency

VHF – Very High Frequency

UHF – Ultra High Frequency

IC - Integrated Circuit

LIC – Linear Integrated Circuit

SSI – Small Scale Integration

MSI – Medium Scale Integration

LSI – Large Scale Integration

VLSI – Very Large Scale Integration

SOC – System On Chip

SIP – System In Package

FPGA – Field Programmable Gate Array

ASIC – Application Specific Integrated Circuit

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#30
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Re: What meaning did these abbrevations stand for?

03/29/2007 4:12 AM

LED – Light Emitting Diode

LCD – Liquid Crystal Display

TFT – Thin Film Transistor

CMOS – Complementary Metal Oxide Semiconductor

FET – Field Effect Transistor

JFET – Junction Field Effect Transistor

MOSFET - Metal Oxide Semiconductor Field Effect Transistor

MONOS – Metal Oxide Nitride Oxide Silicon

SCR – Silicon Controlled Rectifier

LASCR – Light Activated Silicon Controlled Rectifier

OPAMP – OPerational AMPlifier

LVDT – Linear Variable Differential Transformer or (Transducer)

RVDT – Rotational Variable Differential Transformer or (Transducer)

TTL – Transistor Transistor Logic

DTL – Diode Transistor Logic

CMMR – Common Mode Rejection Ratio

ADC – Analog to Digital Converter

DAC – Digital to Analog Converter

RADAR –

SONAR –

RoHS – Restriction of Hazardous Substance

LASER – Light Amplification Stimulated Emission of Radiation

RFID – Radio Frequency Identification Tag

GPRS – General Packet Radio Service

GPS – Global Positioning System

DFT – Discreet Fourier Transform

FFT – Fast Fourier Transform

TDMA – Time Division Multiple Access

CDMA – Code Division Multiple Access

FDMA – Frequency Division Multiple Access

PSD – Phase Sensitive Detector

PWM – Pulse Width Modulation

LAN – Local Area Network

WAN – Wide Area Network

MAN – Metro Area Network

POP – Post Office Protocol

SMPT – Simple Mail Transfer Protocol

WWW – World Wide Web

WAP – Wireless Application Protocol

SMS – Short Message Service

MMS – Multimedia Message Service

MCU – Micro Controller Unit

MPU Micro Processor Unit

CAN – Controller Area Network

LIN – Local Interconnect Network

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#32

Re: What meaning did these abbrevations stand for?

03/29/2007 5:58 AM

Thank you mohammadthalif for that comprehensive list of acronyms.

Ultimately however, if you don't want your post to be FUBAR and avoid a SNAFU then in the first instance use the full version then follow it with the acronym.

This is an international multi discipline forum and acronyms vary in interpretation across both. It's just polite to let your readers know what you mean by using the full version in the first instance.

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#33

Re: What meaning did these abbrevations stand for?

03/29/2007 10:52 PM

RADAR (radar) - Radio Detection and Ranging

SONAR (sonar) - Sound Navigation and Ranging

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#34

Re: What meaning did these abbrevations stand for?

04/02/2007 3:38 AM

So, what about TLA?

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#35
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Re: What meaning did these abbrevations stand for?

04/02/2007 8:13 AM
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#36
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Re: What meaning did these abbrevations stand for?

04/02/2007 8:32 AM

Wikipaedia scores again.

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Location: India
Posts: 37
#37
In reply to #35

Re: What meaning did these abbreviations stand for?

04/04/2007 3:51 AM

hi masu, the link you posted was excellent. i think its contains all acronyms mixed up together. we have to extract the electrical oriented acronyms separately..

any way thanks a lot for giving this link.. its look like a important dictionary for engineers.

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Mohamed Thalib
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Anonymous Poster
#40

Re: What meaning did these abbrevations stand for?

04/15/2007 5:19 AM

TLA == Three Letter Acronym :)

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Active Contributor

Join Date: Mar 2007
Posts: 20
#42

Re: What meaning did these abbrevations stand for?

06/18/2007 9:33 PM

TLA transient line surge arrestor

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Guru

Join Date: Sep 2006
Posts: 4513
Good Answers: 88
#43

Re: What meaning did these abbrevations stand for?

01/20/2008 7:23 PM

Let us not forget the acronym ACRONYM: Alphabetic Co-location for Reducing Or Numbing Your Memory.

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