University of Washington

Physiowave, Inc.

Stormsensor Inc

Robert Bruce Darling

Gregory T Kovacs

Laurent B Giovangrandi

Anya Rose Stettler

William Irl Gibbs, Iv

Paul Yager

Adi A Scheidemann

Patrick L Jones

Steven Saban

Sinclair S Yee

Chuck C Jung

Frank J Schumacher, Iv

Frank J Schumacher Iv

Stevan B Saban

Distributed systems and methods for the automatic monitoring and reporting of data relating to the chemistry and flow of stormwater (i.e. stormwater data) are presented. Multiple fluid sensor devices are exposed to stormwater via positioning the sensor devices in locations of interest. The sensor devices are arranged in self-healing mesh networks. The sensor devices are enabled to acquire stormwater data indicating various fluid properties that are desired to be monitored. A sensor device is further enabled to transmit its acquired stormwater data, either directly or indirectly, to one or more remote computing devices that is hosting a stormwater monitoring application (SMA). The SMA is enabled to process and analyze the stormwater data. The SMA generates measurements and reports based on the processed and analyzed stormwater data.

Distributed systems for stormwater monitoring and reporting

The present invention is directed towards devices, systems, and methods for remotely acquiring stormwater data. A sensor device includes sensors and a transceiver. The sensors generate stormwater data in response to a fluid communication with (or exposure to) stormwater flowing through a stormwater drainage (such as a pipe). The transceiver provides the stormwater data to another sensor device included within a self-healing mesh network including similar sensor devices. The transceiver receives other stormwater data from still other sensor devices included in the mesh network. The sensor device additionally include a processor device, a memory device, a rechargeable battery, and a global positioning device. The components may be integrated on an inner surface of a compression ring that is positionable within the stormwater pipe. The mesh network includes a controller node for receiving the stormwater data from the sensor devices and relaying the stormwater to a remote computing device.

Sensor devices and networks for remotely acquiring stormwater data

Aspects of the present disclosure are directed to a CPU and a memory circuit that has user-corresponding data stored on the memory circuit, and a platform over which a plurality of electrodes are interleaved, and configured for engaging the user. While the plurality of electrodes is concurrently contacting a limb or other extremity of the user, measurement signals are obtained from the plurality of electrodes. Based on a plurality of impedance-measurement signals being obtained from the electrodes, signals are generated that correspond to cardiovascular timings specific to the user. In such aspects of the present disclosure, pulse characteristic signals are determined based on the plurality of impedance-measurement signals and comparisons of user-obtained data are made relative to user-data profiles stored in the memory circuit.

Device and method having automatic user-responsive and user-specific physiological-meter platform

Aspects of the present disclosure are directed to a CPU and a memory circuit that has user-corresponding data stored on the memory circuit, and a platform over which a plurality of electrodes are interleaved, and configured for engaging the user. While the plurality of electrodes is concurrently contacting a limb or other extremity of the user, measurement signals are obtained from the plurality of electrodes. Based on a plurality of impedance-measurement signals being obtained from the electrodes, signals are generated that correspond to cardiovascular timings of the user. In such aspects of the present disclosure, pulse characteristic signals are determined based on the plurality of impedance-measurement signals. One of the pulse characteristic signals is extracted, and used as a timing reference to extract and process another pulse characteristic signal.

Device and method having automatic user recognition and obtaining impedance-measurement signals

Aspects of the present disclosure are directed toward obtaining a plurality of impedance-measurement signals while a set of at least three electrodes are concurrently contacting a user. Additionally, various aspects of the present disclosure include determining a plurality of pulse characteristic signals based on the plurality of impedance-measurement signals. One of the pulse characteristic signals is extracted from one of the impedance-measurement signals and is used as a timing reference to extract and process another of the pulse characteristic signals.

Impedance measurement devices, systems, and methods

A charged particle beam detection system that includes a Faraday cup detector array (FCDA) for position-sensitive charged particle beam detection is described. The FCDA is combined with an electronic multiplexing unit (MUX) that allows collecting and integrating the charge deposited in the array, and simultaneously reading out the same. The duty cycle for collecting the ions is greater than 98%. This multiplexing is achieved by collecting the charge with a large number of small and electronically decoupled Faraday cups. Because Faraday cups collect the charge independent of their charge state, each cup is both a collector and an integrator. The ability of the Faraday cup to integrate the charge, in combination with the electronic multiplexing unit, which reads out and empties the cups quickly compared to the charge integration time, provides the almost perfect duty cycle for this position-sensitive charged particle detector. The device measures further absolute ion currents, has a wide dynamic range from 1.7 pA to 1.2 &#x3bc;A with a crosstalk of less than 750:1. The integration of the electronic multiplexing unit with the FCDA further allows reducing the number of feedthroughs that are needed to operate the detector.

Charged particle beam detection system

A charged particle beam detection system () that includes a Faraday cup detector array (FCDA) for position-sensitive charged particle beam detection is described. The FCDA is combined with an electronic multiplexing unit (MUX) () that allows collecting and intgrating the charge deposited in the array, and simultaneously reading out the same. The duty cycle for collecting the ions is greater than 98%. This multiplexing () is achieved by collecting the charge with a large number of small and electronically decoupled Faraday cups. Because Faraday cups collect the charge independent of their charge state, each cup is both a collector and an integrator. The ability of the Faraday cup to integrate the charge, in combination with the electronic multiplexing unit (), which reads out and empties the cups quickly compared to the charge integration time, provides the almost perfect duty cycle for this position-sensitive charged particle detector (). The device () measures further absolute ion currents, has a wide dynamic range from 1.7 pA to 1.2 &#x3bc;A with a crosstalk of less than 750:1. The integration of the electronic multiplexing unit () with the FCDA further allows reducing the number of feedthroughs that are needed to operate the detector ().

The present invention provides microband electrode array sensors for detecting the presence and measuring the concentration of analytes in a sample. The microband electrodes of the invention have both a width and thickness of microscopic dimensions. Preferably the width and thickness of the microbrand electrodes are less than the diffusion length of the analyte(s) of interest. In general, both the thickness and width of the electrodes are less than about 25 micrometers. The electrodes are separated by a gap insulating material that is large enough that the diffusion layers of the electrodes do not overlap such that there is no interference and the currents at the electrodes are additive. Microband electrode arrays of this invention exhibit true steady-state amperometric behavior.

Microband electrode arrays

The present invention provides microband electrode array sensors for detecting the presence and measuring the concentration of analytes in a sample. The microband electrodes of the invention have both a width and a thickness of microscopic dimensions. Preferably the width and thickness of the microband electrodes are less than the diffusion length of the analyte(s) of interest. In general, both the thickness and width of the electrodes are less than about 25 micrometers. The electrodes are separated by a gap insulating material that is large enough that the diffusion layers of the electrodes do not overlap such that there is no interference and the currents at the electrodes are additive. Microband electrode arrays of this invention exhibit true steady-state amperometric behavior.

This disclosure describes new methods and devices for sensing redox-active analytes in solution. The invention combines a surface plasmon resonance (SPR) sensor and a chemical electrode sensor. A conducting layer which supports SPR is attached to a voltage source. The voltage source is also connected to a reference electrode, which is in the aqueous solution with the SPR sensor. As the voltage is varied, the analytes undergo oxidation and reduction at the surface of the conducting film. The current is measured, just as it would be in a standard chemical electrode, with current peaks appearing at different potentials indicating different ions in the solution. Unlike a standard chemical electrode, the surface of the conducting film is also used to excite a surface plasmon wave (SPW). The SPW provides new information which is not available from any standard chemical electrode, such as the effective index of refraction at the surface of the conducting film as the analytes are being oxidized and/or reduced. This additional source of information can be used to minimize the effects of overlapping stripping peaks and interspecies compound formation as well as determine the thickness of surface layers during measurements. Additionally, the simultaneous determination of reaction properties and optical properties of reaction products can provide additional information about the aqueous support solution such as the quantity and types of natural oxidants in solution, such as oxygen or hydroxides. The formation of oxides and hydroxides will lead to measurably different optical properties.

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Lake Forest Park, WA, United States of America

Robert Bruce Darling