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heat conduction vacuum gauge advantages and disadvantages

heat conduction vacuum gauge advantages:


1. The heat conduction vacuum gauge reflects the full pressure, that is, the real pressure of the measured vessel.


2. The heat conduction vacuum gauge can measure continuously and read from a long distance.


3. The heat conduction vacuum gauge is simple in structure and easy to manufacture.


4. Even if the atmosphere is suddenly encountered, the heat conduction vacuum gauge will not burn out.

heat conduction vacuum gauge.jpg


heat conduction vacuum gauge disadvantages:


1. The calibration curve varies with the type of gas, so the calibration curve for air can not be directly used for other gases.


2. There is thermal inertia in the measurement of heat conduction vacuum gauge. When the pressure changes, the change of hot wire temperature often lags behind, and the reading also lags behind some time.


3. It is greatly affected by the external temperature, so the regulation must be installed in the place which is not easy to be radiated or convective heat.


4. The aging phenomenon is serious and must be calibrated regularly.


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