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Keith A Bartels

from San Antonio, TX
Age ~59
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Also known as:
Keith Alan Bartels, Keith A Artels
Phone and address:
231 Pike Rd, San Antonio, TX 78209
(210) 804-0381
Related to:
Jean Carroll Hightower, 62Brent A Bartels, 77Richard A Bartels, 85Steven E Bartels, 60Angela M Bartels, 54Laurence A Carr, 53Brenda M Acevedo, 61Luisa Benavides, 79Shirley A Bartels, 86German G Benavides, 84
Connected to:
Aaron J Bartels, 48Agnes Bartels, 70Alfred Bartels, 77Andreas Bartels, 61Anna M Bartels, 62Anne E Bartels, 53Austin H Bartels, 32Beth Bartels, 53Bethany A Bartels, 64Bill J Bartels, 80

Keith Bartels Phones & Addresses

  • 231 Pike Rd, Alamo Heights, TX 78209 (210) 804-0381
  • San Antonio, TX
  • Austin, TX
  • 231 Pike Rd, San Antonio, TX 78209 (210) 287-1701

Work

Position: Building and Grounds Cleaning and Maintenance Occupations

Education

Degree: High school graduate or higher

Public records

Vehicle Records

Keith Bartels

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Address:
231 Pike Rd, San Antonio, TX 78209
VIN:
JHMGD38607S017875
Make:
HONDA
Model:
FIT
Year:
2007

Resumes

Resumes

Keith Bartels Photo 1

Staff Engineer

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Location:
San Antonio, TX
Industry:
Medical Devices
Work:
Southwest Research Institute
Staff Engineer
Education:
The University of Texas at Austin 1989 - 1993
Doctorates, Doctor of Philosophy, Electrical Engineering The University of Texas at Austin 1987 - 1988
Master of Science, Masters, Electrical Engineering Trinity University 1982 - 1986
Bachelors, Bachelor of Science, Engineering Southwest Research Institute
Edison High School
Skills:
Biomedical Engineering
R&D
Medical Devices
Labview
Signal Processing
Matlab
Engineering Management
Image Processing
Design of Experiments
Program Management
Systems Engineering
Simulations
Algorithms
Iso 13485
Embedded Systems
Sensors
Electronics
Optics
Keith Bartels Photo 2

Keith Bartels

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Keith Bartels Photo 3

Keith Bartels

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Location:
United States

Publications

Us Patents

Systems And Methods For Calibrating A Distorted Signal With Another Signal Of Known Calibration

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US Patent:
6662130, Dec 9, 2003
Filed:
Jun 13, 2002
Appl. No.:
10/167448
Inventors:
Keith Alan Bartels - San Antonio TX
Assignee:
Southwest Research Institute - San Antonio TX
International Classification:
A61B 562
US Classification:
702104, 600485, 600494, 73579
Abstract:
An uncalibrated sensor located at a first location relative to a physical phenomenon is calibrated using a calibrated sensor spaced away from the uncalibrated sensor at a second location relative to the physical phenomenon and a frequency-domain transfer function that relates the physical phenomenon at the second location to the output of the uncalibrated sensor.

Apparatus And Method For Monitoring A Cable

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US Patent:
6873746, Mar 29, 2005
Filed:
Aug 2, 2001
Appl. No.:
09/923256
Inventors:
Andrew H. Stewart - Fort Collins CO, US
K. Arun Pandey - Fort Collins CO, US
Glenn M. Light - San Antonio TX, US
Richard F. Tennis - San Antonio TX, US
Bernard A. Clairmont - Adams MA, US
Edward A. Bloom - San Antonio TX, US
Keith A. Bartels - San Antonio TX, US
Assignee:
Electric Power Research Institute, Inc. - Palo Alto CA
International Classification:
G06K009/36
G01L001/26
US Classification:
382291, 73862391
Abstract:
In one embodiment the present invention provides a device for monitoring a cable, comprising an imaging device having a field of view; a target, distinguishable within the field of view of the imaging device, associated with a cable; and a computer processor connected to the imaging device for analyzing images of the target produced by the imaging device to determine a position of the cable. In another embodiment, the present invention provides a method for monitoring a cable, comprising calibrating a first image of a predetermined field of view showing a portion of a cable to be monitored; capturing a second image of the predetermined field of view; correlating the first image with the second image to determine a position of the portion of the cable within the second image; and reporting said position.

Methods And Systems For Distal Recording Of Phonocardiographic Signals

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US Patent:
7137955, Nov 21, 2006
Filed:
Apr 18, 2003
Appl. No.:
10/418207
Inventors:
Keith A. Bartels - San Antonio TX, US
Kevin S. Honeyager - San Antonio TX, US
Assignee:
Omron Healthcare Co., Ltd. - Kyoto
International Classification:
A61B 5/04
US Classification:
600528, 600513
Abstract:
Methods and systems for determining cardiovascular parameters of a patient. In an exemplary embodiment, the method includes placing a phonocardiogram sensor on a patient's body at a first distal location to the heart, and a blood-pressure waveform sensor at a second distal location to the heart. Then, a first set and a second set of waveforms is obtained from the phonocardiogram sensor and the blood-pressure waveform sensor, respectively. A signal processing or conditioning operation may optionally be performed using the first and second sets of waveforms. Then, a time delay between a dicrotic notch signal and an S2 signal is determined. A blood pressure pulse transit time value is calculated by adding S2D, representing a time delay between a patient's heart valve closure time and an arrival time of the S2 signal at the first distal location, to the time delay between a dicrotic notch signal and an S2 signal. Cardiovascular parameters are then determined using the determined blood pressure pulse transit time and at least one physical parameter representative of a arterial distance between a location of the aortic valve and a location of the blood-pressure waveform sensor.

Headset For Measuring Physiological Parameters

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US Patent:
20030220584, Nov 27, 2003
Filed:
Apr 18, 2003
Appl. No.:
10/418065
Inventors:
Kevin Honeyager - San Antonio TX, US
Keith Bartels - San Antonio TX, US
Larry Canady - Bergheim TX, US
Assignee:
Southwest Research Institute - San Antonio TX
International Classification:
A61B005/00
US Classification:
600/559000
Abstract:
Methods and systems for determining physiological parameters from body sounds obtained from a person's ear. In various exemplary embodiment, the system includes an earplug housing; a sensing element disposed within a portion of the earplug housing; an acoustic shield coupled to the earplug housing, the acoustic shield reducing or eliminating extracorporeal sounds; and a preamplification circuit electrically coupled to the sensing element. In various exemplary embodiments, the system is operable to determine motion and/or vibration of the external acoustic meatus or the tympanic membrane of the ear due to internally generated body sounds.

Method For Inspecting Liquid Filled Pipes Using Magnetostrictive Sensors

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US Patent:
62956779, Oct 2, 2001
Filed:
Dec 23, 1999
Appl. No.:
9/469423
Inventors:
Hegeon Kwun - San Antonio TX
Keith A. Bartels - San Antonio TX
Assignee:
Southwest Research Institute - San Antonio TX
International Classification:
G01N 2908
G01N 2914
US Classification:
7602
Abstract:
An improved method for defect detectability for the inspection of liquid filled pipes using magnetostrictive sensors. The improved method comprises first recognizing the liquid-induced changes in the dispersion properties of the second longitudinal wave mode, L(0,2). These liquid-induced changes include a severe dispersion at periodic branching frequencies that result in a pulse-like characteristic in the extended received signal. A trailing portion of a received signal component associated with a geometric irregularity, is shown to comprise the branching frequency components. The trailing portion of the extended signal may therefore be removed in order to improve defect detection. The removal process comprises one of three alternative methods. A first method includes creating a short duration pulse free of the frequency components that comprise the trailing signals, and applying the pulse to a magnetostrictive transmitter, thereby generating a longitudinal wave signal in the pipe wall free of the trailing signal frequency components.

Method For Improving Defect Detectability With Magnetostrictive Sensors For Piping Inspection

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US Patent:
62058592, Mar 27, 2001
Filed:
Jan 11, 1999
Appl. No.:
9/228456
Inventors:
Hegeon Kwun - San Antonio TX
Keith A. Bartels - San Antonio TX
Assignee:
Southwest Research Institute - San Antonio TX
International Classification:
G01N29/12
US Classification:
73579
Abstract:
An improved method for defect detection with systems using magnetostrictive sensor techniques. The improved method involves exciting the magnetostrictive sensor transmitter by using a relatively broadband signal instead of a narrow band signal typically employed in existing procedures in order to avoid signal dispersion effects. The signal detected by the magnetostrictive sensor receiver is amplified with an equally broadband signal amplifier. The amplified signal is transformed using a time-frequency transformation technique such as a short-time Fourier transform. Finally, the signal characteristics associated with defects and anomalies of interest are distinguished from extraneous signal components associated with known wave propagation characteristics. The process of distinguishing defects is accomplished by identifying patterns in the transformed data that are specifically oriented with respect to the frequency axis for the plotted signal data. These identified patterns correspond to signals from either defects or from known geometric features in the pipe such as welds or junctions.

Determining Average Wall Thickness And Wall-Thickness Variation Of A Liquid-Carrying Pipe

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US Patent:
60002883, Dec 14, 1999
Filed:
Apr 21, 1998
Appl. No.:
9/063362
Inventors:
Hegeon Kwun - San Antonio TX
Keith A. Bartels - San Antonio TX
Assignee:
Southwest Research Institute - San Antonio TX
International Classification:
G01N 2904
US Classification:
73597
Abstract:
The average wall thickness and the wall-thickness variation of a liquid-carrying pipe are determined. An elastic wave is generated and is measured after traveling a distance along the pipe. From the received wave, the average radius of the pipe, the average inside diameter of the pipe, and the inside diameter variation of the pipe are determined. From the average radius of the pipe and the average inside diameter of the pipe, the average wall thickness of the pipe is determined. From the variations in the average radius of the pipe and the inside diameter variation of the pipe, the wall-thickness variation of the pipe is determined. To determine the average inside diameter of the pipe, the invention relies upon the coupling between the elastic wave modes propagating in the wall of the pipe and the modes propagating in the liquid within the pipe.

Method And Apparatus For Conducting In-Situ Nondestructive Tensile Load Measurements In Cables And Ropes

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US Patent:
58214305, Oct 13, 1998
Filed:
Feb 28, 1997
Appl. No.:
8/810618
Inventors:
Hegeon Kwun - San Antonio TX
Keith Bartels - San Antonio TX
John J. Hanley - San Antonio TX
Assignee:
Southwest Research Institute - San Antonio TX
International Classification:
G01L 110
US Classification:
7386241
Abstract:
An apparatus and method for the non-contact measurement of tensile loading (or tension) in ferromagnetic materials, particularly wire ropes, cables, and strands. The magnetostrictive effect is used to measure wave propagation properties within such materials to determine load forces imposed on the tested material based upon a signature obtained for like materials under like conditions. The apparatus and method contemplate an active measurement application, wherein a transmitting sensor generates an mechanical pulse within a material through the magnetostrictive effect, and a receiving sensor detects reflected mechanical waves within the material by the inverse magnetostrictive effect. Unlike other sensing methods, utilizing the magnetostrictive effect in this way has the advantage of generating and detecting mechanical waves in the tested material without direct physical or acoustical contact. The apparatus and method of the present invention also anticipates the use of a long-term monitoring system that records acquired tensile load measurements for detection of possible structural anomalies and immediate activation of an alarm, or storage and retrieval/analysis at a later time.
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Keith A Bartels from San Antonio, TX, age ~59 Get Report