Questions tagged [electrical-engineering]
Study and applications of electricity, electronics, and electromagnetism. Use this tag when someone who has trained as an electrical engineer is likely to be able to answer your question.
409
questions with no upvoted or accepted answers
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How can I estimate blocking window distance in an sCMOS sensor setup?
I am trying to establish an appropriate distance between a spectrograph output window and a CMOS sensor.
The spectrograph creates a focused image on the CMOS sensor but I am trying to restrict the ...
7
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BER peroformance of MPSK and MQAM in Rayleigh fading channel
I have a question regarding bit error rate (BER) performance over the Rayleigh channel. I observed BER performance over the AWGN channel using Simulink in MATLAB. I used to change the "SNR" parameter ...
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Need some advice, control system animation. Appreciate some help!
I would like to have a 3d simulation of a helicopter landing on a ship.
I thought about using matlab for this, as a far as I know you can connect models from Simulink to virtual worlds using blocks, ...
6
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How does LTE eNodeB set the Base Station output power?
I'm interested into the power radiated out of an eNodeB (LTE/4G) radio base station: which parameters does this power depend on, if they are constant or relying on the environment...
All of this in ...
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Who wrote the 1990's parable about the object oriented toaster?
In the 1990's (or earlier?), an unattributed parable was written about an electrical engineer and a software developer who were tasked with building a toaster. You can view the piece in its entirety ...
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Fluid dynamics of non interacting tanks in series
I have a system like this:
and I have to estimate the height of the lower tank.
First of all, I'm considering that I have a non-viscous, incompressible fluid in steady flow.
Base apertures
The ...
4
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1
answer
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How to reconfigure a control box unit for an SCN5 actuator
An image of the actuator is below. I have a setup that was given to me where there is two configurations, namely 50mm travel and back, and 75mm travel and back to home position. There are two switches ...
4
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1
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allan-variance noise terms of MEMS accelerometer
Specific noise terms are given in datasheets of MEMS sensors.
In example the specification of accelerometer contains information about random walk and in some cases the bias instability.
Both ...
4
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0
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Is there any side effect to soft start an AC motor?
I have a ground to water heat pump for my home heating/cooling (scroll compressor). The 3-phase 15kW-peak motor can be soft started but this option is off by default.
I'm aware of all the positive ...
4
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Technical Analysis to determine optimal Cellular to transmitter location
At a very high level what are required technical analysis to
determine the need to for a new 4G LTE cellular transmitter in US?
find find the optimal location for the transmitter in US?
Back Story: ...
4
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LTE channel characterization from Time Domain waveform
I am currently interested into the diverse Downlink LTE channels broadcasted over air after some (QPSK, 16QAM...) modulation. More precisely their waveform.
I would like to know if, with a good ...
3
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How can I map a global spherical position of a central normal vector to the rotation of 2 perpendicular motors?
I have a machine that rotates two concentric frames. The outer frame has a motor that rotates it relative to the global y-axis, and the inner frame has a motor that rotates it about the outer frame's ...
3
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1
answer
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Raspberry pi, Stepper Motor and level shifter
It is my understanding that a Rasperry Pi cant handle 5V on the GND-pin.
For that reason I got myself a level-shifter which is supposed to be able to change the output from 3.3V to 5V. I need it to be ...
3
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Understanding transformer secondary winding
I purchased a step down transformer from a junk yard. I tested the transformer and it works but I am confused as to the secondary winding.
The primary side has these markings
G 0V 100V
The secondary ...
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Problem reading control effort frequency response plot
I am trying to plot the frequency response control effort of a control scheme in Matlab, and in particular I want to do this for different values of tau, which is a constant used to add a pole at high ...