Pegeltafeln

Pegeltafeln is a term found in German-language sources that translates roughly to "gauge boards." It is not widely used in English-language reference works, and there is no single canonical definition. In various texts, Pegeltafeln may describe a family of display devices that use pegs inserted into a board to represent measured values on a scale.

Design and components: A Pegeltafeln typically consists of a rectangular frame with a grid or linear scale marked along one axis. Holes, slots, or pegs hold markers that can be moved to indicate current readings. The pegs may be color coded to denote ranges or status categories.

Use and function: The boards are used to visualize, store, or communicate measurement data such as water level (Pegel), flow rate, or other process variables. In field stations, a peg's position represents a value; in educational settings, students can manipulate pegs to simulate data.

History and variants: Pegeltafeln appears in hydrological and technical literature dating to the late 19th and early 20th centuries, though explicit usage is sporadic. Variants include vertical versus horizontal orientations, wooden versus metal frames, and multi-scale boards combining several gauges on a single panel. Modern analogs often use digital displays or pegboard-inspired visualization software.

See also: Pegboard, Gauge, Tafel, Pegboard displays, Data visualization.