Scanner and method for detecting pressures on a member
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0271449
(2005-11-11)
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등록번호 |
US-7258000
(2007-08-21)
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발명자
/ 주소 |
- Tavares,Matthew R.
- Morris,Don G.
- Basham,Richard
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
3 인용 특허 :
8 |
초록
▼
A scanner and associated method for detecting pressures on a test member are provided. The scanner can be provided with an electronic module that includes an analog-digital (A/D) converter associated with each channel of the scanner and configured to provide digital signals representative of the pre
A scanner and associated method for detecting pressures on a test member are provided. The scanner can be provided with an electronic module that includes an analog-digital (A/D) converter associated with each channel of the scanner and configured to provide digital signals representative of the pressures detected by pressure sensor elements associated with various locations on the test member. The electronic module can also include amplifiers and/or a multiplexer so that the output of the scanner provides an amplified and/or multiplexed digital output signal representative of the detected pressures. In some cases, the A/D converters and amplifiers can be provided in a single, mixed-signal chip of the scanner. The scanner can be small enough to be disposed in various locations in the test member, including small spaces that are generally incapable of accommodating conventional test equipment.
대표청구항
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What is claimed is: 1. A scanner for detecting pressures on a surface of a test member, comprising: a manifold defining a plurality of channels, each channel extending between a port on a first surface of the manifold and a header inlet such that each channel is configured to communicate a pressure
What is claimed is: 1. A scanner for detecting pressures on a surface of a test member, comprising: a manifold defining a plurality of channels, each channel extending between a port on a first surface of the manifold and a header inlet such that each channel is configured to communicate a pressure at a respective one of the header inlets to a respective one of the ports; a plurality of pressure sensor elements, each pressure sensor element configured to detect a pressure at a respective one of the ports on the manifold; and an electronic module supported by the manifold and configured to communicate with the plurality of pressure sensor elements and an output, the electronic module having at least one A/D converter being configured to communicate with a respective one of the pressure sensor elements and deliver a digital signal to the output representative of the pressure at a respective one of the header inlets. 2. A scanner according to claim 1 wherein the electronic module has a plurality of A/D converters, each A/D converter being configured to communicate with a respective one of the pressure sensor elements and deliver a digital signal to the output representative of the pressure at a respective one of the header inlets. 3. A scanner according to claim 2, further comprising a temperature sensor configured to provide a signal representative of the temperature of the pressure sensor elements to the electronic module for determining a temperature correction of the pressures at the header inlets according to the temperature of the pressure sensor elements. 4. A scanner according to claim 2, further comprising a housing defining a cavity proximate the manifold such that the pressure sensor elements are disposed in the cavity and at least substantially sealed from an environment outside the cavity of the housing such that an internal pressure of the cavity is substantially equal to a reference pressure provided via a reference port fluidly connected to the cavity. 5. A scanner according to claim 2 wherein the A/D converters are defined by a single integrated circuit. 6. A scanner according to claim 2 wherein the electronic module has a plurality of amplifiers, each amplifier being configured to communicate with a respective one of the A/D converters such that each amplifier and the respective A/D converter is configured to deliver an amplified digital signal to the output representative of the pressure at the respective header inlet. 7. A scanner according to claim 6 wherein the A/D converters and the amplifiers are defined by a single integrated circuit. 8. A scanner according to claim 2 wherein the electronic module includes a mixed-signal chip adapted to perform digital and analog operations. 9. A scanner according to claim 2 wherein the electronic module includes a multiplexer configured to multiplex the digital signals from the A/D converters to provide a multiplexed signal via the output. 10. A scanner according to claim 2 wherein each pressure sensor element is fixedly bonded to the electronic module by a wire bond connection. 11. A scanner according to claim 2, further comprising a plurality of tubes extending from the manifold, each tube being fluidly connected to a respective one of the header inlets and extending therefrom to a location remote from the manifold. 12. A scanner according to claim 2 wherein each pressure sensor element is disposed on a glass mounting block mounted on the manifold proximate the respective port, the mounting block defining an orifice for fluid communication between the respective port and the pressure sensor element, and the pressure sensor element defining a body and a strain sensor disposed opposite the body from the mounting block, the strain sensor being electrically connected to the electronic module. 13. A scanner according to claim 2 wherein the manifold defines a ceramic body, each channel extending through the body in a nonlinear configuration between the respective port and header inlet. 14. A method of detecting pressures on a surface of a test member, comprising: providing a scanner on the test member, the scanner having a manifold defining a plurality of channels, each channel extending between a port on a first surface of the manifold and a header inlet in fluid communication with a plurality of locations on the test member such that each channel is configured to communicate a pressure at a respective one of the locations to a respective one of the ports; detecting pressures at the ports with a plurality of pressure sensor elements, each pressure sensor element providing an analog signal representative of the pressure at a respective one of the ports; converting the analog signals to digital signals in at least one A/D converter of an electronic module supported by the manifold, the digital signals being representative of the pressure at each of the header inlets; and delivering the digital signals to an output of the electronic module. 15. A method according to claim 14 wherein said converting step comprises converting the analog signals to digital signals in a plurality of A/D converters of the electronic module. 16. A method according to claim 15, further comprising generating a signal representative of the temperature of the pressure sensor elements and thereby determining a temperature correction for the pressures at the header inlets according to the temperature of the pressure sensor elements. 17. A method according to claim 15, further comprising providing a housing defining a cavity proximate the manifold such that the pressure sensor elements are disposed in the cavity and at least substantially sealed from an environment outside the cavity of the housing. 18. A method according to claim 15 wherein said converting step comprises converting the analog signals in a single integrated circuit in the electronic module. 19. A method according to claim 15, further comprising amplifying the signals from the pressure sensor elements such that the electronic module provides amplified digital signals at the output. 20. A method according to claim 19 wherein said amplifying step comprises amplifying the signals in a single integrated circuit in the electronic module defining the A/D converters. 21. A method according to claim 15, further comprising performing digital and analog operations on a mixed-signal chip of the electronic module. 22. A method according to claim 15, further comprising multiplexing the digital signals from the A/D converters to provide a multiplexed signal via the output of the electronic module. 23. A method according to claim 15, further comprising fixedly mounting each pressure sensor element to the electronic module by a wire bond connection. 24. A method according to claim 15, disposing each pressure sensor element on a glass mounting block mounted on the manifold proximate the respective port, the mounting block defining an orifice for fluid communication between the respective port and the pressure sensor element, and the pressure sensor element defining a body and a strain sensor disposed opposite the body from the mounting block, the strain sensor being electrically connected to the electronic module. 25. A method according to claim 15, further comprising providing a ceramic block defining the manifold and forming the channels through the manifold in a nonlinear configuration between the respective port and header inlet.
이 특허에 인용된 특허 (8)
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Palmer Steven D., Apparatus for measuring lift forces based upon differential pressure between surfaces of an aircraft.
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Sobotta, Gerald; Bosch, Dieter, Device for measuring pressure, sound and vibration and method of analyzing flow on surfaces of structural parts.
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Gross ; Chris, Electrically scanned pressure sensor module with in situ calibration capability.
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Mallon Joseph R. (Alpine NJ) Kurtz Anthony D. (Englewood NJ) Kicks John C. (Wyckoff NJ), Electrically scanned pressure transducer configurations.
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Wiklund David E. ; Bischoff Brian J., Flow measurement compensation technique for use with an averaging pitot tube type primary element.
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Palmer Steven D., Method and apparatus for measuring forces based upon differential pressure between surfaces of an aircraft.
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Chapman John J. ; Hopson ; Jr. Purnell ; Holloway Nancy M., Multi-channel electronically scanned cryogenic pressure sensor and method for making same.
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Palmer Steven D. (Burlington IA), System for onboard lift analysis and apparatus therefor.
이 특허를 인용한 특허 (3)
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Calderon, Raul; David, Christophe, Method of simulation of unsteady aerodynamic loads on an external aircraft structure.
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Keeter, Steven Mark, System and method for multiplexed and buffered miniaturized sensor arrays.
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Keeter, Steven Mark, System and method for multiplexed and buffered sensor arrays.
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