Zero point
The zero point or reference point zero is a term used in many disciplines, preferably for quantitative information in science and technology. The zero point is the starting point for measured or calculated values from which these - starting with the value zero - are recorded or evaluated. At the same time, the zero point separates the positive from the negative numbers .
In statistics, a narrower term “natural zero point” is used, see interval scale .
Examples of the use of the term are:
- Zero point of a scale (display device)
- the beginning of a folding rule
- the scale value for the currentlessness of an ammeter
- Zero point of a scale (quantification)
- the zero point of the Celsius scale, which is set at the temperature 273.15 K (historically on the ice point )
- the normal height zero as the zero level for the height above sea level in Germany
- the zero point of a time scale , e.g. B. 0 o'clock world time or the year 0 for the astronomical year counting
- in the electrochemistry of the zero point of the electrode potential which the potential of the hydrogen electrode is placed
- Origin of coordinates
- the origin point on coordinate axes with the value zero; often, but not necessarily, the intersection of the axes
- a fundamental point or geodetic datum in geodesy
- the workpiece zero point as a reference point when CNC machining a workpiece
Examples from science and technology in which the use of the term zero point is not possible:
- at the time, when it is not to be understood as a period of time with a fixed starting point
- with logarithmic representation
- with reciprocal representation
See also
- Absolute zero
- Zero (mathematics)
Web links
Wiktionary: Nullpunkt - explanations of meanings, word origins, synonyms, translations
Individual evidence
- ↑ http://de.thefreedictionary.com/nullpunkt
- ↑ Hans Heiner Storrer: Introduction to the mathematical treatment of the natural sciences II. Birkhäuser Verlag, 1995, p. 7