dynamic signal analyzer applications projects and accessories? (vibration and ?) - Page 1
Forum section: electronics / testgear

author: coppercone2
author_rank: Super Contributor
timestamp: March 14, 2021, 08:18:01 am
content: So after all these years I got a dynamic signal analyzer. Its main use was to look at <10 Hz noise on linear regulators and low noise rails. I tested it with the 100KHz band stop jim williams amplifier (pity this unit is only 40KHz).But, given its portability, I was wondering.. what else can I do with it. Are there recommended transducers that can go with it? I tried it with a ultrasonic thingy (the one used for range sensors) and its not very interesting because it had such a narrow bandwidth.Other then circuit measurements, I was wondering if there are some cool tools or sensors that can be used with one, say around a machine shop, cars, seismology...?I have a general idea of what someone might have used them for but what I am asking is what are specific things I could get that I can hook up to it and explore something with that I am likely to encounter in my life, not something that came about in the depths of a engineering company trying to solve a very specific problem with a very specific setup.I thought maybe some kind of microphone?Does anyone have general suggestions for1) some kinda useful microphone2) some kinda useful siesmograph thingy3) Other (i.e. I have a differential low noise nanovolt amplifier, I thought maybe if I characterize the CMRR it would be easy to hook up a E-field antenna to it, or maybe try some VLF antennas).4) gasses, bubbles, welding?I am more interested in I guess vibration/sound/the earth then Low frequency EM fields (I have a general Idea of what I can do with that.. its the mechanical/other I am more interested in)Also, is there anything you can do with hydrology/lakes/water/etc? I have those near where I live and its quite portable and battery powered.I even thought maybe something with pro audio, because I have been using generic dell speakers for the last decade.. dunno how I would apply it other then testing electronics.Maybe something like.. general test system to find bad bearings based on noise with some kind of sensor?Like, is it possible to create some kind of general purpose test bench of things or a kit with this to investigate things? The noise floor is like -90dB with alot of samples..i.e. for RF work there are all sorts of wonderful things related to precompliance test stuff that you can make, so long you have a oscope/sa/amplifier I can get pretty specific.-Various loop probes (with different shields, turns ratio), say square loop probe, shielded figure 8 coil, half moon ferrite directional thingy, other near field stuff-clamps probes-far field antennas-field generators.-all kinds of circuit interruptersWhat is the stuff like that for a DSA with a little bit more specificity then 'microphone'. Maybe some kinda speaker to shake stuff with?I am wondering if they are useful at all without "oh just get a piezo transducer and design a solid works model for a modified structural element with that transducer in it and then get it manufactured and catagorize it on a 30,000$ impedance analyzer then have fun. "

author: coppercone2
author_rank: Super Contributor
timestamp: March 14, 2021, 08:27:43 pm
content: what is the impulse response of a bump?