Apparatus for determining a characteristic of a fluid having a device configured to measure a hydrostatic pressure of the fluid

Abstract

Embodiments of the present disclosure provide an apparatus for determining a characteristic of a fluid. The apparatus may include a device configured to determine a hydrodynamic pressure of the fluid. The apparatus may further include a sensor configured to determine a hydrostatic pressure of the fluid or at least one component of the fluid. The apparatus may also include a common substrate on which the sensor and the device configured to determine a hydrodynamic pressure of the fluid may be commonly arranged, and an ASIC (Application Specific Integrated Circuit) which may be electrically coupled with at least one of the device or the sensor. The ASIC may be at least partially embedded in the common substrate.

What is claimed is: 
     
         1 . A device for determining a characteristic of a fluid, the device comprising:
 a sensor being arranged on a substrate; and   a first ASIC being electrically coupled with the sensor and being at least partially embedded in the substrate, wherein the sensor is configured to determine a hydrostatic pressure of the fluid or at least one component of the fluid.   
     
     
         2 . The device according to  claim 1 , wherein the sensor is configured to generate an electrical signal in response to pressure variations of the fluid, and wherein the device further comprises a low-pass filter or a bandpass-filter being configured to attenuate electrical signals which are generated in response to pressure variations with a frequency of more than 20 Hz or a frequency of more than 10 Hz. 
     
     
         3 . The device according to  claim 1 , wherein the sensor is a pressure sensor. 
     
     
         4 . The device according to  claim 1 , wherein the sensor is a gas sensor configured to determine a concentration of the at least one component of the fluid or to determine at least one of a composition or a type of the fluid. 
     
     
         5 . The device according to  claim 1 , further comprising a cover that is mechanically coupled with the substrate and which surrounds the sensor, wherein the cover is mechanically bonded with the substrate by a bonding means that comprises at least one of solder, a conductive adhesive or a non-conductive adhesive. 
     
     
         6 . The device according to  claim 5 , further comprising a fluid port that is provided in at least one of the cover or the substrate, wherein the fluid port provides a fluidic connection between an inside and outside of the device for determining the characteristic of the fluid. 
     
     
         7 . The device of  claim 1 , further comprising a device configured to determine a hydrodynamic pressure of the fluid. 
     
     
         8 . The device of  claim 7 , further comprising a second ASIC at least partially embedded in the substrate and electrically coupled to the device configured to determine the hydrodynamic pressure of the fluid. 
     
     
         9 . The device of  claim 7 , wherein the device configured to determine the hydrodynamic pressure of the fluid is electrically coupled to the first ASIC. 
     
     
         10 . A communication device comprising
 a microphone;   a sensor to determine a hydrostatic pressure of a fluid or at least one component of the fluid;   a common substrate on which the microphone and the sensor are arranged;   a first ASIC (Application Specific Integrated Circuit) being electrically coupled with at least one of the microphone or the sensor; and   a fluid port that provides a fluidic connection between an inside and an outside of the communication device, wherein the ASIC is at least partly embedded in the common substrate.   
     
     
         11 . The communication device of  claim 10 , further comprising a second ASIC that is at least partly embedded in the common substrate, wherein the microphone is electrically coupled to the first ASIC and the sensor is electrically coupled to the sensor. 
     
     
         12 . The communication device of  claim 11 , further comprising a cover that is mechanically coupled with the common substrate and which surrounds the microphone and the sensor. 
     
     
         13 . The communication device of  claim 12 , wherein the fluid port is provided in at least one of the cover or the common substrate. 
     
     
         14 . A method of making a device for determining a characteristic of a fluid, the method comprising:
 arranging a sensor on a substrate, wherein the sensor is configured to determine a hydrostatic pressure of the fluid or at least one component of the fluid;   electrically coupling a first ASIC with the sensor; and   at least partially embedding the first ASIC in the substrate, wherein the sensor is configured to determine a hydrostatic pressure of the fluid or at least one component of the fluid.   
     
     
         15 . The method of  claim 14 , wherein at least partially embedding the first ASIC in the substrate comprises entirely embedding the first ASIC in the substrate. 
     
     
         16 . The method of  claim 14 , further comprising mechanically coupling a cover with the substrate, wherein the cover and the substrate surrounds the sensor. 
     
     
         17 . The method of  claim 16 , wherein mechanically coupling the cover comprises mechanically bonding the cover to the substrate using at least one of solder, a conductive adhesive or a non-conductive adhesive. 
     
     
         18 . The method of  claim 17 , further comprising providing fluid port in at least one of the cover or the substrate, wherein the fluid port provides a fluidic connection between an inside and outside of the device for determining the characteristic of the fluid. 
     
     
         19 . The method of  claim 14 , further comprising arranging a device configured to determine a hydrodynamic pressure of the fluid on the substrate. 
     
     
         20 . The method of  claim 19 , further comprising:
 at least partially embedding a second ASIC in the substrate;   electrically coupling the sensor to the first ASIC; and   electrically coupling the device configured to determine the hydrodynamic pressure of the fluid to the second ASIC.