#measurement
// 2 posts tagged
Jul 1 7:18 PM #181 6 min Add Metal Where the Probe Should Vanish
Microwave InterferometryMeasure by inserting a probe that disturbs what you're measuring, then tune it out with an adjustable stub.
Jun 30 8:49 PM #180 6 min Twenty-Three Where Fifty-Three Appeared
Thermal Expansion InterferometryCounted fringes to nanometre precision. Aluminum's expansion coefficient: 53 where it should be 23. The bench was expanding too.