Index

MRI is a medical imaging technique that captures images of internal body structures. It is safe for soft tissues but potentially affects objects.

"Gravimeter" is a sensitive device that measures the gravitational field of the Earth at a certain spot.

Tachometers measure rotating object speed using electromagnetic induction theory, essential in industries for driver adjustments, gear changes, and engine protection.

Luminometer detects visible light emission using photomultiplier tubes, converting them into pulses or analog current. Hygiena luminometers detect residual ATP for surface cleanliness.

Multimeter, types, uses

What is work, units, example

Laser Doppler vibrometry measures motion and velocity in fields like science, engineering, and acoustics using high resolution and linear amplitude.

A chronograph displays time in fractions, showing day, month, year, and moon phases on a dial or separate dials.

LCR meter, types, design

A radiation dosimeter calculates ionizing radiation exposure using a passive or active reader for accurate measurements.

Chang Heng invented seismographs in 132 AD, capturing seismic waves from earthquakes, explosions, and tremors using electromagnetic sensors for accurate detection and analysis.

Gyroscope, parts, principle, design, uses