Kulite Semiconductor Products, Inc.

Scott J Goodman

Anthony D Kurtz

Alexander A Ned

Robert Gardner

Joseph R VanDeWeert

Sorin Stefanescu

Adam Stuart Kane

Adam M Hurst

Boaz Kochman

Tonghuo Shang

Lou DeRosa

Andrew V Bemis

Andrew Bemis

Steve Carter

A pressure transducer assembly configured for low-pressure measurements in water or high humidity environments, the pressure transducer assembly having a non-corrosive housing, an upside-down mounted pressure sensor chip comprising silicon and contact glass, and an electrically insulating and stress-absorbing spacer layer disposed between the non-corrosive housing and the contact glass of the sensor chip, the spacer layer is matched to a coefficient of thermal expansion (CTE) of one or more of the glass and the silicon of the sensor chip to absorb stress and improve reliability. The pressure transducer assembly may be suitable for use in microphone and/or hydrophone applications.

Waterproof pressure sensing device with improved reliability and performance

Header construction and techniques are disclosed that utilize header layers that provide support for electrical interconnections. A sensor header assembly includes: an upper header layer having upper through holes arranged in a first configuration; a lower header layer having lower through holes arranged in a second configuration axially offset relative to the first configuration; depressions extending from the lower header layer top surface and partially through the lower header layer, each depression defining a footprint corresponding to the first configuration of the corresponding upper through holes of the upper header layer; upper header pins extending through the corresponding upper through holes and at least partially into the corresponding lower level depressions; and lower header pins extending through the corresponding lower through holes and in electrical communication with the corresponding upper header pins. The depressions form support surfaces for supporting at least the corresponding upper header pins during high-pressure operation.

Sensor header assembly for increased reliability in high-pressure environments

The disclosed technology includes an oil-filled pressure transducer assembly and an oil-filled compensating sensing element disposed near one another and attached to a common housing. The oil-filled pressure transducer assembly may receive and measure pressure media via a first oil-filled cavity and a protective diagram in communication with the pressure media. The compensating sensing element may be isolated from the pressure media. In certain example implementations, the compensating sensing element is configured to measure certain common error phenomena that are also measured by the oil-filled pressure transducer assembly, for example, due to acceleration, temperature, and/or vibration. In certain implementations, the signal measured by the compensating sensing element may be subtracted from the signal measured by the oil-filled pressure transducer assembly to provide a compensated output signal.

Oil filled transducers with isolated compensating capsule

Certain implementations of the disclosed technology include systems and methods for providing header assemblies for use with pressure sensors in high-temperature environments. Certain example implementations include a header assembly. The header assembly can include a header portion having a first side and a second side, the header portion including one or more bores extending through the header portion from the first side to the second side. In certain example implementations, one or more platinum header pins are disposed within and extending through the one or more bores of the header portion. In certain example implementations, the header assembly can include one or more brazing portions corresponding to the one or more platinum header pins. In certain example implementations, the platinum header pins are configured for electrical communication with corresponding electrodes of a leadless transducer element.

High-temperature headers for sensing elements

A flexible transducer structure suitable for attaching to a curved surface such as the leading edge of an aircraft wing is provided. In one example embodiment, a method may include receiving, at a sensor disposed on a flexible sheet, a pressure, wherein the sensor is electrically coupled to a conductive trace disposed on the flexible sheet; measuring, by the sensor, the pressure to generate a pressure signal; outputting, by the sensor, to the conductive trace, the pressure signal, wherein the conductive trace extends away from the sensor on the flexible sheet; and wherein the flexible sheet is adaptable to conform to a contour of a curved surface.

Pressure transducer structures suitable for curved surfaces

This disclosure provides example methods, devices, and systems for an ultra-miniature, multi-hole flow angle probe. The construction, packaging of a multitude of absolute and or differential pressure transducers or sensors are invented for the purpose of providing highly accurate measurement of flow properties, flow angle in particular. The unique placement of sensors leads to further miniaturization relative to current state of the art. Further the use of closely coupled, differential transducer or transducers achieves higher accuracy measurement of small pressure variations coupled with large mean or average baseline pressures, as is demanded in modern aerodynamic or turbo-machinery devices. The use and installation of ultra-miniature sensors insider the device invented herein achieves higher frequency response than allowable via previous state of the part.

Ultra-miniature multi-hole flow angle probes

A method, device, or system is provided for improving dynamic pressure measurements. In one embodiment, a method comprises receiving, at a filter structure having a restricting tube, an input pressure having a static pressure (P), a lower-frequency dynamic pressure (P) and a higher-frequency dynamic pressure (P); filtering, by the restricting tube, the input pressure to substantially pass an output pressure having the static pressure (P), the lower-frequency dynamic pressure (P), and an attenuated higher-frequency dynamic pressure (P); and outputting, from the filter structure, the output pressure.

Systems and methods for improved dynamic pressure measurements

This disclosure provides example methods, devices, and systems for a single and grouped pressure valve. In one embodiment, a pressure valve may include a housing having a first input port and a plurality of output ports and defining a cavity disposed therein; a flow coupler disposed in the cavity of the housing and having a passage transversely disposed therethrough, wherein the flow coupler is movable within the cavity of the housing; wherein a first alignment position of the flow coupler in the cavity of the housing allows fluid flow from the first input port of the housing through the passage of the flow coupler to all of the plurality of output ports of the housing; and wherein a second alignment position of the flow coupler in the cavity of the housing allows fluid flow from the first input port of the housing through the passage of the flow coupler to one of the plurality of output ports of the housing.

Single and grouped pressure valves

A novel flexible transducer structure is suitable for attaching to curved surface such as the leading edge of an aircraft wing. The structure comprises a thin flexible sheet of an insulating material with a leadless transducer secured to the sheet. The sheet is then placed over the curved surface and assumes the curvature of the surface. The transducer secured to the sheet provides an output of pressure according the pressure exerted on the sheet. The sheet basically is fabricated from a thin material such as Kapton and is flexible so as to assume the curvature of the surface with the transducer being exposed to pressure applied to the curved surface. The sensor in conjunction with the flexible sheet allows pressure to be measured without disturbing the air flow patterns of the measuring surfaces and because of its construction, is moisture resistant over a large variety of atmospheric conditions.

Pressure transducer structures having a plurality of conductive traces for curved surfaces

There is disclosed a flat planar pressure transducer which comprises a planar insulative substrate of a rectangular configuration. Disposed on the substrate is an array of conductive areas which extend from a contact terminal area of said substrate to an end of the substrate. There is a leadless sensor module positioned at said contact terminal area, with the contacts of said leadless sensor contacting contact terminals of said contact terminal area. The leadless sensor is enclosed by an enclosure which is coupled to the substrate and surrounds the sensor. The enclosure has a screen positioned on the top surface to prevent particles from entering or damaging the leadless sensor. The above-noted structure forms a very flat, compact pressure transducer which can be utilized in lieu of flex circuit type devices and provides greater mechanical stability as well as a more accurate output.

Growing community of inventors

Wayne, NJ, United States of America

Scott J Goodman