COMPARISON METHOD CALIBRATION APPARATUS OF ULTRA-HIGH VACUMM
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Abstract: A kind of comparison method calibration apparatus of ultra-high vacuum is introduced,which has the advantages of simplicity,practicality and small uncertainty.This apparatus can calibrate ultra-high vacuum gauge in the 10-7~10-5 Pa range.
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Keywords:
- ultrahigh vacuum gauge /
- compar son /
- calibration
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