Sensor

A container and signal receiver technology, applied in instruments, measuring devices, measuring fluid pressure through electromagnetic components, etc., can solve problems such as diaphragm aging, achieve functional safety, improved life, and suitable applications.
CN101720428BActive Publication Date: 2013-07-17MARQUARDT GMBH SCHLOSSTRASSE 16 7201 RIETHEIM-WEILHEIM 1 WEST GERMANY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
MARQUARDT GMBH SCHLOSSTRASSE 16 7201 RIETHEIM-WEILHEIM 1 WEST GERMANY
Publication Date
2013-07-17

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Abstract

The invention relates to a measuring device (1), especially a sensor, such as a pressure sensor, a travel sensor or the like, comprising a housing (6) and a membrane (7) arranged in and / or on the housing (6). A signal transmitter (8) is actively connected to the membrane (7). A signal receiver (9) interacts with the signal transmitter (8). The membrane (7) is at least partially surrounded by a cover (11) especially a cap. The cover (11) has openings (12).
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Description

technical field

[0001] The invention relates to a measuring device for measuring a medium to be measured. Background technique

[0002] The measuring device can be a sensor, such as a pressure sensor, a stroke sensor, or the like. Such measuring devices are mainly used for the direct measurement of operating parameters in fluids, for example in parts of domestic appliances where water is introduced.

[0003] Measuring devices are known which have a housing and a membrane which is arranged in and / or on the housing and which is in contact with the medium. A signal generator is operatively connected to the membrane. A signal receiver cooperates with the signal generator to generate a measurement signal for the medium. It has been found that there is a risk of mechanical damage to the membrane by particles present in the fluid. The diaphragms of pressure sensors for measuring small pressures in dirty fluids are particularly sensitive. In addition, the membranes age due to t...

Claims

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