FIELD: measurement technology.
SUBSTANCE: device has chamber of known volume, vacuum pump, a calibrated and sample leak, reference vacuum gauge, two double-way cocks. Thus, laser interference oil manometer is used as the reference vacuum gauge having knees with additionally introduced metal cylindrical inserts having axial hole for laser beam to pass. The calibrated and sample leaks are attached to different manometer knees via double-way cocks. Calibrated and sample leaks connection of to manometer knees via two-way cocks allows detecting gas desorption influence from measuring volume walls. Computer analog-to-digital interface unit connection to manometer is optionally done. Additional calibrated ballast volumes are optionally connected to manometer via additional vacuum shutters.
EFFECT: high accuracy of measurements; accelerated measurement process.
3 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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