davem – Page 5 – Dave McGlone

Advice To “Garage” Inventors

davem / 20 Mar 2023

“It’s cynicism when young, experience when old.“

I don’t deny the truth of this – Hewlett… Read the rest

davem / 13 Mar 2023

Electrons wiggle. By definition, current is a measure of electron wiggle. If for no other reason, electrons wiggle when… Read the rest

davem / 11 Mar 2023

Internal DC Inductance

Keep it “simple”; an infinite straight length along vector z of a circular conductor… Read the rest

davem / 11 Mar 2023

Magnetic Field

As usual, assume an infinitely long straight wire. The fundamental expression is the Biot-Savart Law

davem / 11 Mar 2023

Plated Wire

The use of plated wire in spacecraft (and other places) is not uncommon; nickel or silver overlaying copper … Read the rest

davem / 3 Mar 2023

These are defined as “exact” fundamental constants by NIST

k = Boltzmann Constant = $1.380\,649 × 10^{-23}\; J/K$
q = Electron Charge = $1.602\,176\,634 × 10^{-19}\; C$

davem / 2 Mar 2023

Establish Constants

k = Boltzmann Constant = 1.38065 × 10 $^{-23}$
q = Electron Charge … Read the rest

davem / 2 Mar 2023

It is rare that a sensor output matches an ADC input – therefore some degree of signal processing is required between… Read the rest

davem / 2 Mar 2023

The previous section related the inherent “quantization error” to the signal-to-noise ratio – here… Read the rest

davem / 2 Mar 2023

Effective Number of Bits: ENOB

The effective-number-of-bits (ENOB) is the parameter that ultimately defines the resolution… Read the rest