Kymograph
Quimógrafo
- Date
- 1847 · confidence medium
- Place
- Marburg, Hesse, Germany
- Credited to
- Carl Ludwig
- Field
- Life & health
What it is
An instrument consisting of a rotating drum that graphically records variations in pressure or position over time, invented by physiologist Carl Ludwig to measure blood pressure.
What it led to
- widespread use in 19th- and 20th-century experimental physiology
- precursor of graphic recording in microscopy and cell biology
- influence on dynamic measuring instruments across disciplines