If you have ever watched a strain reading drift after six hours of testing, or spent an afternoon chasing electrical noise through a bridge box, you already understand why fiber Bragg grating sensing...

A cable is the least interesting part of a force measurement, right up until it is not. It picks up noise from a drive cabinet two bays away, it fatigues at the connector after a few thousand cycles,...

Cables are the least glamorous part of a vibration test, and far too often they are the part that decides whether the test succeeds. One damaged connector, one ground loop, or one cable that starts g...

Shopping for a sound pressure level meter is a strange experience. A dozen instruments look almost identical, sit within a narrow price band, and all promise "high accuracy". The differences that act...

If you have spent time around a test bench, the term iDAQ has probably crossed your desk. Sometimes it appears in a datasheet, sometimes in the middle of a scope-of-work document that a customer draf...

If you have ever worked on noise control, hearing protection selection, or vibration testing, you have likely come across the term octave band analyzer. For many years, I have helped engineers and te...

A structural modal test is running behind schedule. The engineer taps the test object with an instrumented hammer, watches the response decay in about three hundred milliseconds, and sees only a hand...

A commissioning engineer walks onto a turbine deck with eight accelerometers, a laptop, and no way to run cables from the bearing housings to a control room without crossing a walkway. This is the mo...

An engine bearing begins to degrade long before an alarm sounds. The first sign is often a small change in vibration: a new spectral peak, a slight phase shift, or a slow increase in broadband noise....

Measurement Science — Instrumentation A close look at why FFT-based architecture gives the Dynamic Signal Analyzer a decisive edge at low frequencies — and where the traditional spectrum analyzer sti...

A vibration shaker works by converting electrical energy into controlled mechanical motion, using either an electrodynamic coil-and-magnet system or a mechanical exciter to push a moving table or arm...

A modal shaker exciter is an electromechanical device that converts an electrical drive signal into a controlled mechanical force, applied directly to a test structure so engineers can measure its na...