Calibration device
AssigneeTatsuno Corporation
InventorsTsutomu Otaki, Norikazu Osawa
Life of this patent
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Abstract
To provide a calibration device for an apparatus filling a gas such as hydrogen gas and capable of precisely measuring quantity of the gas such as hydrogen gas that are filled at high pressure. A calibration device of the present invention is characterized by including a filling vessel, accommodated in a measurement housing, to the filling vessel a high pressure fuel gas such as hydrogen gas being fed from outside of the measurement housing, and a scale for measuring a weight of a fuel gas fed to the filling vessel, wherein a dry gas pipe for feeding a dry gas is detachably mounted in the measurement housing. Here, the scale preferably measures the weight of the fuel gas fed to the filling vessel together with a weight of the measurement housing.
Claims7
A calibration device comprising:
- a filling vessel, accommodated in a measurement housing, to said filling vessel a high pressure fuel gas being fed from outside of the measurement housing;
- a dew-point instrument for measuring a dew-point temperature in the measurement housing;
- and
- a scale for measuring a weight of a fuel gas fed to the filling vessel,
- wherein a dry gas pipe for feeding a dry gas in the measurement housing is detachably mounted to the measurement housing.
Dependencies are inferred from the claim text.