PRESSURE SENSORS WITH PLUGS FOR COLD WEATHER PROTECTION AND METHODS FOR MANUFACTURING THE PLUGS

A pressure sensor (1) including a housing (100) with a sensing element (200) therein. A communication passageway (127) is formed in the housing (100). The sensing element (200) is in fluid communication with an outside of the housing (100) through the communication passageway (127). The pressure sen...

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Bibliographic Details
Main Authors WANG, Lei, LI, Yang, HU, Xuan, LIU, Luzhao
Format Patent
LanguageEnglish
French
German
Published 04.03.2020
Subjects
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
PHYSICS
TESTING
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Summary:A pressure sensor (1) including a housing (100) with a sensing element (200) therein. A communication passageway (127) is formed in the housing (100). The sensing element (200) is in fluid communication with an outside of the housing (100) through the communication passageway (127). The pressure sensor (1) is further provided with a compensating structure (250), so that when a contact force is increased due to occurrence of a volume expansion of a liquid passed into the housing (100) through the communication passageway, the compensating structure (250) is used to compensate the volume expansion. A plug (300) may also be used with the pressure sensor (1). The pressure sensor (1) is such that when the liquid within the pressure sensor has an increased volume due to being frozen, such increased volume can be compensated, so as to prevent the components of the pressure sensor (1) from being damaged.
Bibliography:Application Number: EP20170163135