Blog topic
Vibration, acoustics, ultrasound and thermography for pumps, motors, spindles and other rotating equipment.
8 articles
What lung sound research teaches about vibro-acoustic sensing, with our TeMeLu lung monitor project as context: coupling, noise, labels, validation and the boundary with medical device rules.
Saichand GourishettiHow tool wear and chatter appear in spindle vibration, sound and load, why context from the NC program matters, and a practical set-up procedure for machine tools.
Saichand GourishettiA step-by-step predictive maintenance ROI calculation for pumps and motors, with an illustrative worked example, sensitivity analysis and the inputs that matter.
Saichand GourishettiWhy leaks and friction are loud above 20 kHz, how to run an ultrasonic leak survey, what ISO 29821 covers, and when a fixed sensor beats a handheld detector.
Clemens SaurHow to get trustworthy thermal images of motors and switch cabinets: emissivity, reflections, load, pixel size, the relevant standards and a field checklist.
Clemens SaurAccelerometers measure what a structure does; microphones hear what a process emits. A practical comparison and a checklist for choosing between them.
Clemens SaurThe four bearing fault frequencies, their formulas, a worked example on a 6205 deep groove ball bearing, and what slip, sidebands and envelopes do to them.
Saichand GourishettiHow a vibration time signal becomes a spectrum: sample rate, FFT resolution, windows, averaging, units, and the mistakes that make a spectrum lie.
Saichand GourishettiNext step
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