Metrology

the Watership Down of rabbit holes.

Major scientific discoveries often involve the creation of novel instruments:

• The Michelson-Morley experiment (1887), which disproved Aether theory and layed the groundwork for special relativity, required the Michelson interferometer.
• Observing the Higgs boson (2012) required the Large Hadron Collider.

Concepts

Accuracy and precision, relative and absolute, single-ended and differential, bits and oversampling, acquisition rate and Nyquist.

Measurements

Physical phenomena that can be turned into electrical signals.

Sensors

Single-chip low-cost devices ready for integration into projects.

Instruments

Industrial systems in process plants.