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1. WO2020117858 - DISPOSITIFS DE DÉTECTION D'ÉCOULEMENT À CHAMPS D'ONDES MULTIPLES ET PROCÉDÉS APPARENTÉS

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

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CLAIMS

What is claimed is:

1. A sensing arrangement comprising:

a substrate;

a first sensor array on the substrate, the first sensor array comprising a first plurality of sensing elements, wherein a first distribution of the first plurality of sensing elements on the substrate is configured to obtain a first set of measurement data indicative of a first property of an operating environment; and

a second sensor array on the substrate, the second sensor array comprising a second plurality of sensing elements interspersed among the first sensor array, wherein a second distribution of the second plurality of sensing elements on the substrate is configured to obtain a second set of measurement data indicative of a second property of the operating environment.

2. The sensing arrangement of claim 1, wherein the second sensor array comprises a plurality of sub-arrays, each sub-array of the plurality comprising a respective subset of the second plurality of sensing elements.

3. The sensing arrangement of claim 2, wherein a spacing between sensing elements of the respective subset of the second plurality of sensing elements of a respective sub-array is less than a second spacing between the respective sub-array and another sub array of the plurality of sub-arrays.

4. The sensing arrangement of claim 1, wherein the first property comprises a first response to a lower wavenumber component of a fluid flow and the second property comprises a second response to a higher wavenumber component of the fluid flow.

5. The sensing arrangement of claim 4, wherein the first distribution comprises at least one of a minimum sensor spacing for achieving a wavenumber resolution for the lower wavenumber component and a number of sensing elements for achieving the wavenumber resolution for the first response to the lower wavenumber component.

6. The sensing arrangement of claim 5, wherein the second distribution comprises a number of sub-arrays having a second minimum sensor spacing and a second number of sensing elements per sub-array for achieving a second wavenumber resolution for the second response to the higher wavenumber component.

7. The sensing arrangement of claim 4, further comprising an attenuation layer overlying the first plurality of sensing elements of the first sensor array.

8. The sensing arrangement of claim 7, wherein the attenuation layer comprises a windscreen configured to provide an anti-aliasing filter that attenuates the higher

wavenumber component.

9. The sensing arrangement of claim 4, wherein modeled data for the higher wavenumber component is subtracted from the first set of measurement data to remove the higher wavenumber component, wherein the modeled data includes an estimate of at least one of discrete Fourier transform aliasing or folding error.

10. The sensing arrangement of claim 1, further comprising a conformable encapsulating layer overlying the substrate, the first sensor array, and the second sensor array.

11. The sensing arrangement of claim 10, wherein the conformable encapsulating layer comprises a removable adhesive material.

12. The sensing arrangement of claim 1, wherein:

the first sensor array is optimized for obtaining the first set of measurement data indicative of a higher wavespeed and lower wavenumber flow component of a flow-induced pressure field; and

the second sensor array comprises a plurality of sub-arrays optimized for obtaining the second set of measurement data indicative of a lower wavespeed and higher wavenumber flow component of the flow-induced pressure field.

13. The sensing arrangement of claim 1, wherein the substrate comprises a flexible printed circuit board.

14. The sensing arrangement of claim 13, wherein the flexible printed circuit board is cut or patterned for conformability.

15. The sensing arrangement of claim 14, wherein the flexible printed circuit board is patterned into a multi-finger structure or a spiral.

16. The sensing arrangement of claim 1, further comprising:

a random-access memory (RAM) architecture coupled to the first and second plurality of sensing elements; and

a controller operatively coupled to the RAM architecture to control reading and writing operations of the RAM architecture, wherein, during a data recording operation, each sensing element of the first and second plurality of sensing elements is directly connected, electrically and physically, to the RAM architecture to facilitate synchronous writing of digital sensor output data comprising the first and second sets of measurement data.

17. A method comprising:

obtaining required data acquisition time and sensor over-range and under-range levels from a user;

establishing a logical connection with an array instrument RAM controller;

providing a graphical indication of the logical connection to the array instrument and sub-array components to the user;

providing a graphical means for the user to specify results data filename and folder and/or path;

providing a graphical means for the user to start and stop data acquisition;

providing a means for the user to review how many sensors measured over-range and how many sensors measured under-range signals in each sub-array during the data acquisition period; and

providing a means for the user to save the results data to defined filename after reviewing the number of over-range and under-range instances.

18. A method of claim 17, further comprising:

providing a graphical means for the user to see which sensor locations in each sub-array were subject to over-range;

providing a graphical means for the user to see which sensor locations in each sub-array were subject to under-range; and

providing a means for user to save the results data to defined filename after reviewing the number and location in array of over-range and under-range instances.

19. A sensor system comprising:

a flexible support substrate configured to be conformally mounted to curved surfaces; an array of digital sensor devices carried by the flexible support substrate, each of the digital sensor devices configured to generate a respective digital output signal that conveys raw digital sensor output data, wherein:

the array of digital sensor devices comprises a lower wavenumber array comprising a first set of the digital sensor devices and a higher wavenumber array comprising a second set of the digital sensor devices;

the higher wavenumber array comprises a plurality of sub-arrays comprising respective subsets of the second set of the digital sensor devices;

the first set of the digital sensor devices of the lower wavenumber array are uniformly distributed across the flexible support substrate; and

sub-arrays of the plurality of sub-arrays are nonuniformly interspersed amongst the first set of the digital sensor devices of the lower wavenumber array;

an array of random-access memory (RAM) devices carried by the flexible support substrate, the RAM devices directly connected to the digital sensor devices during a data recording operation of the sensor system, such that the RAM devices directly receive the digital output signals; and

a controller operatively coupled to the array of RAM devices to synchronously clock the array of RAM devices during the data recording operation, such that the raw digital sensor output data is synchronously written to the array of RAM devices.

20. The sensor system of claim 19, wherein:

each digital sensor device in the array of digital sensor devices comprises a microelectromechanical microphone device.

21. A system comprising:

means for obtaining required data acquisition time and sensor over-range and under range levels from a user;

means for establishing a logical connection with an array instrument RAM controller; means for providing a graphical indication of the logical connection to the array instrument and sub-array components to the user;

graphical means for the user to specify results data filename and folder and/or path; graphical means for the user to start and stop data acquisition;

means for the user to review how many sensors measured over-range and how many sensors measured under-range signals in each sub-array during the data acquisition period; and means for the user to save the results data to defined filename after reviewing the number of over-range and under-range instances.

22. The system of claim 21, further comprising:

graphical means for the user to see which sensor locations in each sub-array were subject to over-range;

graphical means for the user to see which sensor locations in each sub-array were subject to under-range; and

means for the user to save the results data to defined filename after reviewing the number and location in array of over-range and under-range instances.