Questions tagged [terminology]

Terminology is the studying of the terms used to identify things. In electronics, just like any other complex human endeavour, using the proper terms helps in understanding.

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How is the word "kilohm" pronounced traditionally?

Had to ask this in electronics, would like to hear this from people who have been involved. I am not a native English speaker, and I couldn't find a definitive answer online: there are too many ...
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What is the technical term for a transparent monitor which is visible on only 1 side? [closed]

What is the technical term for a transparent monitor which is visible on only 1 side? For example, if you had an OLED monitor where you can only see the screen from one side A bit like what would be ...
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11 votes
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What are the effects of removing P, I, and D from a PID controller respectively?

A proportional, integral, and derivative (PID) controller can feature three terms.) We sometimes see only two of the terms in use. For example, the derivative is disregarded for a PI controller. While ...
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13 votes
9 answers
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Why is North American residential power called single phase?

I am under the belief that North American residential power is a special case of two phase power adequately described by the term split phase. Clearly I am in the minority and want to be convinced ...
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16 votes
4 answers
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What does negative capacitance mean?

I see negative capacitance measuring electrolytic capacitor at high frequencies (40kHz). How should I interpret that? The device is LCR Meter Hantek 1832C. I failed to find anything about that in the ...
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3 answers
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What are the different types of digital signals, other than binary?

https://dsp.stackexchange.com/questions/81777/can-a-digital-signal-has-3-three-values1-0-and-1 Above is link to a my related question, especially relevance in the answer from Hilmar, but that does not ...
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Interpretation of multimeter displaying "OL"

Multimeters normally displaying "OL" when measuring resistance in ohms and the cables are not connected. My friend told me that apprentices in Germany learn it is "Overload", while ...
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2 votes
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Is there a single word term for doubled amplitude of square wave?

The IEC60050 (103-07-02) tells that the amplitude is "maximum value of a scalar sinusoidal quantity". So the peak-to-peak voltage is a doubled amplitude. Is there a single word term for a ...
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Is there a standard that describes the term "coplanar waveguide"?

I look at IEC60050 "International Electrotechnical Vocabulary" standard at section 726 "Transmission lines and waveguides" and searching on the word "coplanar" gives me ...
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How to name the frequency of digital signal?

Let's imagine that we have some MCU in which each GPIO pin can be set high or low with a single assembler instruction (BSET/BCLR for example). If we divide one by the instruction execution time we get ...
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Terminology: What is the Reasoning for using the Term "Multiplexor"? [closed]

A multiplexor is used for selecting from many possible inputs to a single output. The schematic below displays an 8-way multiplexor. It has 8 possible inputs all going to a single output and has a ...
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VF vs. VFR Suffix: Whats the Difference?

On Digikey, I have found 2 parts that have the same datasheet and same product attributes, but one is $2 cheaper and has VFR at the end of its name instead of VF. Here are the products and datasheets: ...
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10 votes
1 answer
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What is meaning of "classic" control in context of EE?

As electrical engineers, we often come across the terms "classic control" & "modern control" What does classic mean here? Is it meaning "old" or of "past time&...
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Why are data selectors referred to as "multiplexers" [closed]

I think it would be intuitive if a multiplexer was a component that "multiplied" the number of signals coming out of it, i.e. splits one complex signal into many simpler ones. However, I ...
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4 answers
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Confusion regarding active band pass filter [duplicate]

I have seen some Google results where a band pass filter is made by cascading low pass and high pass stages. I am confused what will happen if we interchange the stages (first stage is high pass and ...
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1 answer
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Confusion regarding term "offset"?

I am confused regarding term "offset". What is its meaning in context of function generator and oscilloscope? I have tried to google, but I get results in context of op amp and some results ...
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5 votes
2 answers
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How is an 8p10c connector possible?

I thought I understood how modular connector naming worked: npmc, where n is the number of positions and m the number of loaded positions, always loading from the middle out. So for an 8p8c connector, ...
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2 votes
1 answer
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Ambiguity of the "intrinsic" layer in a PIN diode

I'm having trouble understanding the fundamental makeup of large PIN diodes, specifically those used in radiation detection devices. For example, high purity germanium (HPGe) detectors are often ...
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10 votes
2 answers
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What is this wire connector/terminal called?

Could you please tell me the name of the red wire connector/terminal shown in the picture?
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3 answers
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What does "Vpp" mean in terms of generated and measured waveforms?

I'm using a Keysight "EDUX1052G" oscilloscope (with built-in wave generator) to drive a red LED through a 470 ohm resistor. (I'm taking great care to keep the current draw on the wavegen to ...
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Are there well-established terms for clock sources used with microcontrollers, to distinguish whether microcontroller CLKOUT is required?

What are the best terms for crystals/resonators/oscillators used with microcontrollers that cover each of the following groups: clock sources that require an additional oscillator circuit (NOT gate) ...
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2 votes
2 answers
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What kind of terminal block is this?

I've perused a few resources (linked below) trying to learn more about this strip / block, but they mostly have side views / cross sections. I just want to know what the things in this picture are ...
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9 votes
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What does "mode-free" mean, in the context of coaxial connectors?

I've seen a number of coaxial connectors claimed to be rated for "mode-free operation up to (whatever) GHz"--but after much searching, I can't seem to find any definition of "mode-free&...
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2 votes
3 answers
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What is the difference between a glitch and a hazard?

Both glitches and hazards seem to be very similar. Can the difference be explained with the help of an example?
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1 vote
1 answer
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What's the name of this DC-DC topology?

I was helping some friends that wanted to add a light load to a DC power rail in an industrial installation. The voltage to this rail comes from an array of voltage sources, with one voltage source ...
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-5 votes
1 answer
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Relay controller without the relays? [closed]

I need a way to turn off/on about 20 relays or FETs using RS-232 codes. (I do not want to program a generic microcontroller, I want a dedicated device that is designed to do switching only.) I notice ...
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Are Verilog and VHDL Register Transfer Languages?

I have seen the term Register Transfer Language being used as the expansion of RTL in the context of Hardware Description Languages (HDLs). Specifically over here: https://www.cl.cam.ac.uk/teaching/...
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1 vote
1 answer
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Terminology for components found in Kitchen Timer

Apologies if this is a duplicate, by definition I'm not sure what to search for. I took apart a kitchen timer and found a few things I'd like to learn about, but couldn't find the right terminology to ...
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1 vote
1 answer
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When do we use minterm over maxterm in real words example or vice versa?

This may sound stupid. We have minterms. It is a product of all variables in a function and that function has the property that it is equal to 1 on exactly one row of the truth table. What do we call ...
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6 votes
4 answers
286 views

Why do we use the terms AC and DC if they have nothing to do with current?

It seems archaic, maybe that we use the term AC (alternating current) and DC (direct current) to talk about power systems. After all, it is the voltage waveform we're usually referring to. In my first ...
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Synonym for Sine Wave Half Cycle

One cycle of a sine wave (such as the mains power voltage) consists of two half cycles (often called positive and negative in electronics). Is there a (preferably one-word) term to refer to such a <...
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Meaning of the terminology "referring to primary" or "referring to secondary" in the context of transformers equivalent circuits

I`m studying transformers equivalent circuit and encountered this term "referring" to primary or secondary and I was confused by this terminology. I tried to look for a definition but couldn'...
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2 votes
1 answer
612 views

What does "WROOM" mean?

I see numerous references to ESP32-WROOM. Does "WROOM" have a meaning, or is it just a marketing term for a particular version of the ESP32?
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1 vote
1 answer
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What is the term for this construction of ADC?

The following description from GBATEK explains the implementation of a low-cost ADC that was used in a video game from the early 2000s. It contained a solar sensor in the cartridge: A/D Conversion ...
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0 votes
2 answers
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Square wave, triangle wave etc. not defined in International Electrotechnical Vocabulary (IEV.) Are they not standard terminology?

Why are there no definitions for typical terms like square wave, triangle wave etc. in the International Electrotechnical Vocabulary (IEV)? Are these widely used descriptions not defined by ...
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0 votes
2 answers
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What is the origin of the "iso [frequency/voltage/power]" terminology?

In the VLSI and computer architecture world, it is common to hear terms like "iso frequency" or "iso power" when comparing the performance of different designs. My understanding is ...
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1 answer
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Is there a commonly used name for a "local ground" or "local common"?

Suppose we have a circuit that measures some external voltage like so: simulate this circuit – Schematic created using CircuitLab We will assume that the circuit is powered by batteries, and ...
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-1 votes
1 answer
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What is meant by "T" and "aT" here?

https://ctms.engin.umich.edu/CTMS/index.php?example=BallBeam&section=ControlFrequency I am trying to learn about lead compensator from above link But i have bit confusion regarding two terms,"...
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0 votes
2 answers
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Terminilogy for AC/DC classification

For example if you wanted to created a datasheet with an item specifying that the device requires AC power, what would that item be called. My first thought is current type but that does not seem ...
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1 vote
1 answer
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Can it be said "transistor open/closed" and what does it mean?

I some other language literature I used to read it is common to find a text that translates directly into English as "transistor open" or "diode open". This means that transistor ...
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32 votes
6 answers
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Why does 60 Hz mean 60 refreshes and not 120?

A light bulb using alternating current at 60Hz turns on and off 120 times per second but in a monitor 60Hz means 60 refreshes per second. Why is that? Shouldn't 60Hz mean 120 refreshes?
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2 votes
1 answer
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What is the difference between a USB port and a USB receptacle?

The Wikipedia article USB hardware states: Standard connectors The type-A plug. This plug has an elongated rectangular cross-section, inserts into a type-A receptacle on a downstream port on a USB ...
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8 votes
2 answers
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What is meant by "plant" in control system?

What is meant by "plant" in control system? Does it also means systems like DC motor or it only includes large systems like chemical (fertilizer or cement) plant?
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10 votes
2 answers
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Name for old-style (purple-tinged) white LEDs?

Older white LEDs (ca. 2005-2010?) had a distinct purple tinge while modern ones have a spectrum much closer to a blackbody. I rather like the look of the older style and would like to purchase some ...
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0 votes
0 answers
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ETSI Definition of "Channelized system"

ETSI standards EN 301 489-1 and EN 300 330 use the term "channelized" (system or equipment). But I could not find any definition for "channelized" in one of the standards or any ...
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1 vote
1 answer
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What's is yx8018b and what is it symbol?

I am trying to fix some solar lamps, that contain pretty much only a handful of electrical components: A switch a solar panel a 1.2 V AAA batery an LED a resistor (inside its "home" it ...
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0 votes
3 answers
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How do you call wire pins that can be used as jumpers with your breadboard?

I can't seem to find these things on electronics distributor websites. There is a bunch of various pins and connectors but I can't find these among them. What are they called? I tried "dupont 2.54mm ...
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1 answer
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VSWR WOW measurement

I see the term WOW in spec sheets and drawings. I understand the term means a variation in a measurement (VSWR, Insertion Loss, Phase) over 360 degrees of rotation. But I have never correlated how the ...
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1 vote
2 answers
202 views

Jacket diameter of coaxial cable : how to read those documentations?

Before anything: I am not an electrical engineer: I don't know very much coaxial cables (just the very basics). I need to do some orders of magnitude calculation of heat transport of typical coaxial ...
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1 vote
2 answers
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Coaxial cable terminology : how to read?

I need to understand the nomenclature used for coaxial cable. For example: UT-085-SS-SS, or UT-085-SS, or UT-085-NbTi As far as I understood, the number 085 here is the total diameter of the cable ...
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