| Автор | J W Schmidt |
| Автор | Yueqin Cen |
| Автор | R G Driver |
| Автор | W J Bowers |
| Автор | J C Houck |
| Автор | S A Tison |
| Автор | C D Ehrlich |
| Дата выпуска | 1999-12-01 |
| dc.description | Primary pressure standards in the atmospheric pressure range are often established using mercury manometers. To a lesser extent, controlled-clearance dead-weight testers, in which one component (normally the piston) has been dimensionally measured, have also been used. The recent advances in technology on two fronts: (i) the fabrication of large-diameter pistons and cylinders with good geometries; and (ii) the dimensional metrology capability of these components, have allowed some dead-weight testers at the National Institute of Standards and Technology (NIST) to achieve total relative uncertainties (2 σ) in generated pressure near 10 × 10<sup>-6</sup> (10 ppm). This paper describes recent developments at the NIST in which accurate dimensional measurements have been translated into effective areas. It is anticipated that total relative uncertainties in generated pressure may decrease to 5 ppm (2 σ) when recent dimensional measurements are incorporated in the newest gauges. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | A primary pressure standard at 100 kPa |
| Тип | paper |
| DOI | 10.1088/0026-1394/36/6/8 |
| Electronic ISSN | 1681-7575 |
| Print ISSN | 0026-1394 |
| Журнал | Metrologia |
| Том | 36 |
| Первая страница | 525 |
| Последняя страница | 529 |
| Аффилиация | J W Schmidt; NIST, NIM, Millipore Corp. |
| Аффилиация | Yueqin Cen; NIST, NIM, Millipore Corp. |
| Аффилиация | R G Driver; NIST, NIM, Millipore Corp. |
| Аффилиация | W J Bowers; NIST, NIM, Millipore Corp. |
| Аффилиация | J C Houck; NIST, NIM, Millipore Corp. |
| Аффилиация | S A Tison; NIST, NIM, Millipore Corp. |
| Аффилиация | C D Ehrlich; NIST, NIM, Millipore Corp. |
| Выпуск | 6 |
