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Alan M Petroff

from Sugar Grove, NC

Also known as:
  • Alan Michael Petroff
  • Allen Petroff
  • A Petroff

Alan Petroff Phones & Addresses

  • Sugar Grove, NC
  • 3420 Panorama Dr SE, Huntsville, AL 35801 • 256 536-4208
  • 3420 Panorama Dr SE #1, Huntsville, AL 35801
  • 3607 Panorama Dr SE, Huntsville, AL 35801
  • Watauga, NC
  • Alexander, NC
  • Laingsburg, MI
  • Bham, AL
  • 3420 Panorama Dr SE, Huntsville, AL 35801 • 205 534-8803

Work

  • Position:
    Production Occupations

Education

  • Degree:
    Bachelor's degree or higher
Name / Title
Company / Classification
Phones & Addresses
Alan M Petroff
incorporator
American Digital Systems, Inc
MONITORING SERVICES
Huntsville, AL
Alan M Petroff
incorporator
Apex, Inc
Huntsville, AL
Alan Petroff
incorporator
Condor Solutions, Inc
ELECTRONIC SYSTEMS CONSULTING
Huntsville, AL

Us Patents

  • Flow Measurement In Partially Filled Pipes Using Pulsed Peak Velocity Doppler

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  • US Patent:
    7672797, Mar 2, 2010
  • Filed:
    Jul 20, 2007
  • Appl. No.:
    11/880262
  • Inventors:
    Alan M. Petroff - Huntsville AL, US
  • Assignee:
    ADS LLC - Huntsville AL
  • International Classification:
    G01F 1/00
    G01F 17/00
    G01F 23/00
    G01P 11/00
    G01S 13/00
    G01S 15/00
  • US Classification:
    702 50, 702 45, 702 46, 702 55, 702100, 702142, 702143, 7317011, 73510
  • Abstract:
    The present invention relates to a system and method for measurement of flow velocity using the transmission of a sequence of coherent pulsed ultrasonic signals into the flow, and sampling the received response signal at a predetermined delay time relative to the pulse transmission that does not correspond to the signal transmission time. The sampling may be coherent with a frequency offset from the coherency frequency of the pulses. The received signal samples are then spectrally processed, typically by a Fourier process, to generate a frequency domain data set. A threshold technique is used on the frequency domain data set to determine a peak Doppler shift. Average velocity is then obtained by multiplying the peak Doppler shift by a factor, for example, 0. 90. In one embodiment, the transmit pulse and receive samples are interleaved by alternating between transmitting a pulse and, after a delay, sampling the received signal.
  • Augmented Surface Sensor For Measuring Flow Velocity

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  • US Patent:
    8215183, Jul 10, 2012
  • Filed:
    Jun 26, 2010
  • Appl. No.:
    12/824177
  • Inventors:
    Alan M. Petroff - Huntsville AL, US
  • Assignee:
    ADS LLC - Huntsville AL
  • International Classification:
    G01F 1/66
  • US Classification:
    7386128
  • Abstract:
    A system and method for measurement of flow parameters in a sewer pipe that may be partially or completely filled. Flow parameters may include flow velocity, flow volume, depth of flow and surcharge pressure. Measurements are taken from a sensor head installed on the inside of the pipe at the top of the pipe approximately the larger of at least 1 foot or 1 pipe diameter upstream of a pipe opening. Flow velocity may be measured by two different technologies. The technology employed depends on whether or not the pipe is full. If the pipe is not full then flow velocity may be measured, for example, using a wide beam, ultrasonic, diagonally downward looking Doppler signal that interacts with the surface of the flow. If the pipe is full, then flow velocity may be measured using, for example, an average velocity Doppler sensor, a peak velocity Doppler sensor or an ultrasonic velocity profiler.
  • Open Channel Meter For Measuring Velocity

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  • US Patent:
    20110239781, Oct 6, 2011
  • Filed:
    Mar 27, 2011
  • Appl. No.:
    13/072752
  • Inventors:
    Alan Petroff - Huntsville AL, US
  • International Classification:
    G01F 1/66
  • US Classification:
    7386128
  • Abstract:
    A system for measuring flow parameters in a drain pipe which may be partially or completely filled. The system comprises wide band pulsed ultrasonic echo ranging sensor disposed in a lower portion of a pipe with a beam directed generally upward at a predetermined inclined angle. Echo information may be processed to determine contiguous particle traces from the same respective particles in a range vs. time format. Particle velocity may be determined based on trace slope or arc. Average particle velocity from a measurement subset of flow may be used to determine a subset average flow rate, which is then related to total flow rate and total flow average velocity based on one or more models. One embodiment may reflect the beam from the surface of the water to extend coverage near the bottom of the pipe and may avoid an exclusion zone at the bottom of the pipe.
  • Measurement And Control System

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  • US Patent:
    47915471, Dec 13, 1988
  • Filed:
    Jul 15, 1985
  • Appl. No.:
    6/755062
  • Inventors:
    Alan M. Petroff - Huntsville AL
  • Assignee:
    Condor Systems, Inc. - Huntsville AL
  • International Classification:
    G06F 1546
  • US Classification:
    364138
  • Abstract:
    A measurement and control system for employment with a plurality of significantly spaced process access locations wherein a single cable extends in a loop by these access locations, and both ends of the cable are terminated at a central controller. The cable consists of a solid, conductive, outer housing and four spaced conductors within the housing, the housing being otherwise filled with a dielectric material. Data units are positioned at each access location, and each data unit is configured to supply and receive, or one of the other, discrete data by being coupled to the cable, two of the conductors of the cable furnishing power for the data unit, and the other two providing communications. Certain of the data units employ transducers to measure a single physical state. Outputs from these transducers, in analog form, are serialized, converted to digital data, cross-compared to determine off scaled readings, and the good readings averaged.
  • Velocity Measurement System

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  • US Patent:
    50203746, Jun 4, 1991
  • Filed:
    Nov 17, 1989
  • Appl. No.:
    7/440502
  • Inventors:
    Alan M. Petroff - Huntsville AL
    Larry W. Fullerton - Huntsville AL
  • Assignee:
    ADS Environmental Services, Inc. - Huntsville AL
  • International Classification:
    G01F 166
  • US Classification:
    7386125
  • Abstract:
    A sonic-type fluid flow measuring system wherein reflections or echoes of an ultrasonic acoustic emitter are sensed and typically comprise a number of frequencies representative of a number of discrete velocities of flow in a volume of fluid. As a sample, they simply appear as a voltage plot as a function of time and wherein the time width of a given signal excursion relates to the frequency of a given signal. Thereafter, this time domain signal sample is converted to a frequency domain sample whereby the presence and magnitude of each frequency component, or velocity component, is isolated, this being typically done by what is known as a Fast Fourier Transform. The highest frequency, velocity, signal from each of a rapid succession of samples is then obtained and stored in a memory. The highest and lowest of these are then discarded, and the remaining are averaged to obtain more likely representations of velocity. As the goal is to determine an average fluid velocity for a whole cross section of fluid flow, the measured peak velocity is a detected reference from which a lesser velocity, for example, 0.
  • Sewer Flow Measurement Control System

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  • US Patent:
    51989891, Mar 30, 1993
  • Filed:
    Jun 13, 1990
  • Appl. No.:
    7/537369
  • Inventors:
    Alan M. Petroff - Huntsville AL
  • Assignee:
    ADS Environmental Services, Inc. - Huntsville AL
  • International Classification:
    G01F 166
  • US Classification:
    364510
  • Abstract:
    A sewer flow monitoring system wherein the volume of flow is determined from the depth of fluid in a pipe together with the average velocity of flow through the pipe as determined by detecting the peak velocity from particles flowing in sewage at different velocities and then determining average velocity to be approximately 90% of the peak velocity.
  • Velocity Measurement System

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  • US Patent:
    52263282, Jul 13, 1993
  • Filed:
    Jul 26, 1991
  • Appl. No.:
    7/736466
  • Inventors:
    Alan M. Petroff - Huntsville AL
    Larry M. Fullerton - Huntsville AL
  • Assignee:
    ADS Environmental Services, Inc. - Huntsville AL
  • International Classification:
    G01F 166
  • US Classification:
    7386125
  • Abstract:
    A sonic-type fluid flow measuring system wherein reflections or echoes of a burst 103 of ultrasonic energy from an ultrasonic acoustic emitter 9a are sensed and typically comprise a number of frequencies representative of a number of discrete velocities of flow in a volume of fluid. A receiver transducer 13a is gated to receive echoes from a selected volume of fluid 104 a selected distance from transducer 13a. Thereafter, this time domain signal sample is converted to a frequency domain sample whereby the presence and magnitude of each frequency component, or velocity component, is isolated, this being typically done by what is known as a Fast Fourier Transform unit 42a, obtaining a frequency domain waveform representative of average flow velocity. A variable noise threshold stored in register 52a is subtracted from the waveform to remove electronic noise, and the result integrated by integrator unit 54a to compensate for the return echoes returning from a slightly curved plane of the outwardly propagating wavefront. Seven of these samples are stored, and averaged by averaging-velocity translator unit 58a to obtain an average result, which is applied to averaging-velocity translator unit 58a, which averages these stored velocities and applies the result to output unit 64a for disposition.
  • Measurement And Control System

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  • US Patent:
    49338331, Jun 12, 1990
  • Filed:
    Dec 13, 1988
  • Appl. No.:
    7/285321
  • Inventors:
    Alan M. Petroff - Huntsville AL
  • Assignee:
    ADS Services, Inc. - Huntsville AL
  • International Classification:
    G06F 1546
  • US Classification:
    364138
  • Abstract:
    A measurement and control system for employment with a plurality of significantly spaced process access locations wherein a single cable extends in a loop by these access locations, and both ends of the cable are terminated at a central controller. The cable consists of a solid, conductive, outer housing and four spaced conductors within the housing, the housing being otherwise filled with a dielectric material. Data units are positioned at each access location, and each data unit is configured to supply and receive, or one of the other, discrete data by being coupled to the cable, two of the conductors of the cable furnishing power for the data unit, and the other two providing communications. Certain of the data units employ transducers to measure a single physical state. Outputs from these transducers, in analog form, are serialized, converted to digital data, cross-compared to determine off scaled readings, and the good readings averaged.

Resumes

Alan Petroff Photo 1

Chief Engineer

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Location:
Huntsville, AL
Industry:
Research
Work:
Time Domain Corporation 1995 - 2011
Several

Condor Solutions 1995 - 2011
President

Condor Solutions 1995 - 2011
Chief Engineer
Education:
Huntsville High School
Alan Petroff Photo 2

Principal Technologist

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Location:
Huntsville, AL
Industry:
Defense & Space
Work:
Time Domain Corporation
Principal Technologist
Alan Petroff Photo 3

Senior Principal Systems Enginee

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Location:
Huntsville, AL
Work:

Senior Principal Systems Enginee

Classmates

Alan Petroff Photo 4

Alan Petroff Huntsville ...

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Alan Petroff 1978 graduate of Huntsville High School in Huntsville, AL is on Classmates.com. See pictures, plan your class reunion and get caught up with ...

Flickr

Youtube

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