Tensioned-Wire Length Measuring Instrument
| Autor: | P. H. Sydenham ME |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1969 |
| Předmět: | |
| Zdroj: | Measurement + Control, Vol 2 (1969) |
| Druh dokumentu: | article |
| ISSN: | 0020-2940 00202940 |
| DOI: | 10.1177/002029406900201104 |
| Popis: | Length measurement using tensioned-wires has been investigated showing that sensitivities of 1 part in 10 10 are realistic with stabilities of 1 part in 10 8 for at least 100 hr periods when detecting small changes of a large nominal length. Wires may also be used to measure continuous lengths from millimetres to decametres with about 4 parts per million repeatability. The existing static theory has been extended to cover dynamic performance and the effect of tensioning-head friction and inertia. Temperature, creep and mechanical hysteretic errors are discussed. A number of specific instruments are described for making a wide variety of dimensional measurements. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|