Electronics > Beginners
Sample Rate
TimFox:
When the re-naming of cps = cycles/second to Hz was first proposed, a conservative German scientist objected “One might as well name the liter/minute the Falstaff.”
magic:
Funnily enough, there is becquerel - the count of decays per second in a radioactive material.
Mechatrommer:
--- Quote from: Jwillis on August 30, 2019, 04:39:57 am ---
--- Quote from: magic on August 29, 2019, 07:45:41 pm ---BTW, what the fuck is one megasiemens per second? :-DD
--- End quote ---
I sort off get the joke . A Siemen is a measurement of electric conductance, electric susceptance, and electric admittance.The reciprocal of resistance, reactance, and impedance.
Also called a mho.
--- End quote ---
i dont get the joke, but i'm not too serious either. if unitless (count or cycles) per sec is Hz, any unit per sec, is the rate of change, such as m/s, kmph, dT/dt (temperature), V/us. hence anything that change conductivity with delta 1Meg in one sec is one megasiemens per second. i'm not sure if such material exists though.
taydin:
I often see Msps or Gsps in oscilloscope specs. Not a standard, but conveys the meaning.
SparkyFX:
--- Quote from: metrologist on September 03, 2019, 02:36:09 pm ---What if a sample is taken on both the rising and falling edge?
--- End quote ---
You only know if you are on a falling or rising edge when sampling more often than the signal changes (Nyquist-Shannon) and what causes the sample to be taken is the elapse of time, without regard for the signal.
Triggering requires either software with enough samples to be taken or separate hardware.
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