Blog & insights
Articles from our projects and test rigs: condition monitoring, weld inspection, the battery passport, models and standards. Written by the people who build the systems.
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We are at electronica 2026 in Munich, 10 to 13 November, Hall B4, stand 169/4, with a live demo of our multimodal sensing platform. What you can see and how to book a meeting.
Clemens SaurHeat a surface for an instant, watch it cool, and hidden voids and delaminations appear. How impulse thermography works, its limits, and the MYW.AI 4 QM research context.
Clemens SaurThe stages we follow to turn a measurement idea into a custom sensing system, from feasibility rig to product, with examples from our funded research projects.
Clemens Saur50 articles
We are at electronica 2026 in Munich, 10 to 13 November, Hall B4, stand 169/4, with a live demo of our multimodal sensing platform. What you can see and how to book a meeting.
Clemens SaurHeat a surface for an instant, watch it cool, and hidden voids and delaminations appear. How impulse thermography works, its limits, and the MYW.AI 4 QM research context.
Clemens SaurThe stages we follow to turn a measurement idea into a custom sensing system, from feasibility rig to product, with examples from our funded research projects.
Clemens SaurISO 17359 tells you how to set up a condition monitoring programme; ISO 13374 tells you how to structure the data processing behind it. Both explained, with current editions.
Saichand GourishettiZones A to D in ISO 20816 tell you how a machine's broadband vibration compares with experience. Here is what each zone means, how to set alarms and trips, and what the zones cannot tell you.
Saichand GourishettiSpiking networks and event-driven chips promise anomaly detection on microwatts. What neuromorphic computing is, what vibration research shows and how it compares with a tuned microcontroller.
Clemens SaurDIGIBATT360 links production, field and supply chain data around the EU battery passport through a federated data space. The consortium, the data flows and our part in it.
Clemens SaurThe VCD4.3 grades wheel flats and bearing faults on a freight wagon with no battery and no radio. The design decisions behind it, from the classifier to the capacitor bank, and what is still open.
Clemens SaurThe EU Data Act gives users of connected machines rights to the data they generate. What it covers, what it means for industrial AI, and the dates that matter.
Saichand GourishettiA weld grade is only useful if you can find it again and prove where it came from. How to build the chain from sensor sample to module record, step by step.
Saichand GourishettiWhat 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 GourishettiThe battery passport is only the first. Under ESPR, every product group with ecodesign rules gets a digital product passport. What it requires, which products come first and how to prepare.
Clemens SaurA loose accelerometer looks like a machine fault to a model. How self-monitoring sensors detect their own faults and keep them out of the fault statistics.
Saichand GourishettiRaw vibration, sound and thermal data quickly outgrow any uplink. A practical comparison of edge and cloud evaluation, with numbers, regulations and a decision table.
Saichand Gourishettie-LAS+ had a project period of May 2023 to April 2026, according to the Fraunhofer IDMT project page. What the project on multimodal inline inspection of laser welds set out to do, and what we take forward.
Clemens SaurForty terms that come up when mechanical engineers, electronics designers and data scientists build multimodal sensing systems together, each defined in one to three sentences.
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 GourishettiConnected sensors, edge hubs and their firmware are products with digital elements under the Cyber Resilience Act. What applies, when, and why reporting duties have applied since 11 September 2026.
Clemens SaurWhat a Qualcomm QCS6490-class processor brings to a multi-sensor edge hub: CPU, GPU, ISP and NPU, read from the datasheet and translated into sensing workloads.
Clemens SaurThe keyhole and melt pool of a laser weld make sound. What airborne microphones and acoustic emission sensors pick up, what peer-reviewed studies show, and where the method stops.
Saichand GourishettiA sensor that writes its result into a passive RFID tag can be read without spending its own energy on a radio. How dual-interface tags work, UHF versus NFC, and what to watch in a design.
Clemens SaurA practical workflow for labelling vibration, sound, video and thermal data together: label schemes, label propagation with time uncertainty, weak labels and quality checks.
Saichand GourishettiThe design reasoning behind our hub-and-node architecture: why each sensing function gets its own node, what the hub does, and which trade-offs we accept in return.
Clemens SaurA step-by-step predictive maintenance ROI calculation for pumps and motors, with an illustrative worked example, sensitivity analysis and the inputs that matter.
Saichand GourishettiThere is no magic number of recordings. What really sets the amount of training data for acoustic inspection, and how to estimate it from a small pilot campaign.
Saichand GourishettiAn end-of-line test proves a battery module works today. Inline inspection shows whether each joint was made right. Where each one belongs, and how to split the work.
Clemens SaurA channel-by-channel checklist for specifying vibration, acoustic, vision, thermal and depth sensors on a multimodal test rig, including the time and data questions people forget.
Clemens SaurThe Machinery Regulation replaces the Machinery Directive from 20 January 2027, with new rules for machine-learning safety functions, software logs and protection against corruption.
Clemens SaurWhy 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 SaurA model can score near 100 % and still have learned nothing useful. How shortcut learning creeps into industrial data and how to design a validation that catches it.
Saichand GourishettiThe battery passport does not require weld quality data. Why that is, which passport fields welding still affects, and three sensible places to keep per-weld records.
Clemens SaurWayside load detectors, microphones, cameras and on-board axle box sensors all find wheel flats. They differ in coverage, timing and how well they grade severity. A comparison for rail engineers.
Clemens SaurEvery sensor has its own oscillator, and they all disagree. How clock offset and drift arise, how to measure them and what a recording should store so data can be aligned later.
Saichand GourishettiVendor-neutral criteria for choosing an edge AI development kit for industrial sensing, from sensor interfaces and recording to software support and security, then our own kits.
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 SaurIs it abnormal, what is it, how bad is it? Three model types answer three different questions and need very different data. How to climb the ladder in order.
Saichand GourishettiWhy spot welds on battery tabs fail cold or spit metal, why a resistance test often cannot tell the difference, and which electrical, mechanical and vibro-acoustic signals help.
Clemens SaurFive structural reasons a single sensor misses machine faults or raises false alarms, an illustrative pump example and a checklist for deciding when to add a second modality.
Clemens SaurMost AI for weld, surface or acoustic quality inspection is not high-risk under the EU AI Act, but some duties already apply. How to classify your system, and the dates after the 2026 Digital Omnibus.
Saichand GourishettiAccelerometers measure what a structure does; microphones hear what a process emits. A practical comparison and a checklist for choosing between them.
Clemens SaurHow to turn raw vibration, sound and thermal signals into features a model can use: physics first, then time-domain, spectral and envelope features, then validation.
Saichand GourishettiLack of fusion, piercing, porosity, brittle intermetallics: the defects that matter in battery cell laser welding, and what photodiodes, cameras, OCT and acoustics can see.
Clemens SaurA practical engineering guide to vibration energy harvesting for condition monitoring sensors: what the physics allows, how to condition the power and how to design an energy budget that closes.
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 GourishettiA modality-by-modality look at cameras, thermal cores, time-of-flight, microphones and accelerometers: what each one sees, what it misses and what fools it.
Clemens SaurEdge AI in manufacturing means evaluating sensor data with trained models at the machine. What it is used for, what hardware it needs and where projects fail.
Saichand GourishettiNotes on our EEAI 2025 talk in Naples: why condition monitoring on moving, unpowered assets works better when the sensor carries its own verdict.
Clemens SaurFrom 18 February 2027, EV, LMT and industrial batteries over 2 kWh need a digital passport. What Annex XIII asks you to record, who sees it, and how to get ready.
Clemens SaurHow a vibration time signal becomes a spectrum: sample rate, FFT resolution, windows, averaging, units, and the mistakes that make a spectrum lie.
Saichand GourishettiMultimodal sensing measures one machine through several physical channels at once. What it is, which modalities matter, how the data is fused and how to start.
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