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Questions tagged [linearity]

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21
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14answers
1k views

How is it that two electric currents can travel in opposite directions on the same wire, at the same time, without interfering with each other?

An Introduction to Information Theory: Symbols, Signals and Noise, by John R. Pierce, says the following: While linearity is a truly astonishing property of nature, it is by no means a rare one. ...
3
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0answers
281 views

How is it that two electric currents can travel in opposite directions on the same wire, at the same time, without interfering with each other? [duplicate]

An Introduction to Information Theory: Symbols, Signals and Noise, by John R. Pierce, says the following: While linearity is a truly astonishing property of nature, it is by no means a rare one. ...
0
votes
2answers
66 views

Linearization of motor's thrust

I'm working with a water vehicle that use four motors to move. They are placed at the corner and are fixed. Hence the movements are obtained changing the speed of each one. The vehicle can move along ...
3
votes
1answer
81 views

PWM nonlinearity

simulate this circuit – Schematic created using CircuitLab I am using the PIC16F1786 in a current transducer to measure 0-1 Amp DC. I use an A/D converter to measure voltage from a Hall Effect ...
1
vote
2answers
105 views

Difference between in-band and out-band 3rd order intercept points?

I am reading the datasheet of this IC. The specification has listed in-band and out-band 3rd order intercept point (Page 11). I ...
1
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1answer
76 views

Why linearise around an equilibrium point?

In the control theory dealt in class I was taught to always linearise a nonlinear system around an equilibrium point, i.e., where $$\dot x = 0$$ However, linearization is a Taylor series expansion, ...
2
votes
2answers
306 views

FSR linearization when using adc

I'm using Interlinks 30-49649 Force sensitive sensor(FSR), the FSR resistance decrease when the force applied increase. the FSR datasheet has the following graph. Looking into the graph, a 10K ...
0
votes
2answers
471 views

Load-line of MOSFET when analyzing triode mode

When we are analyzing MOSFET within a circuit (e.g. as an amplifier) with drain or source resistor we must consider the load line of transistor, like so: When used in triode mode a.k.a. ohmic mode ...
1
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1answer
58 views

I'm comparing a couple of GNSS front-end modules. Is a lower In-band IIP3 point better or worse than a higher one?

I would typically compare the small signal gain and noise figure first. One of the FEMs requires an external matching component but other that they are very similar in terms of cost and foot-print ...