1
William D Bachalo: Method and apparatus to determine the size and velocity of particles using light scatter detection from confocal beams. Aerometrics, Blakely Sokoloff Taylor & Zafman, August 8, 1989: US04854705 (47 worldwide citation)

An apparatus for sizing particles, droplets, bubbles, or the like employing laser light scattering is disclosed. A laser is used for generating two beams of light having different wavelengths or polarizations. The beams with different wavelengths may be generated by an argon ion laser or by two diff ...


2
William D Bachalo: Apparatus and method for determining the size and velocity of particles, droplets, bubbles or the like using laser light scattering. Jeffrey J Blatt, September 10, 1985: US04540283 (37 worldwide citation)

An apparatus and method for determining the size and velocity of particles, droplets, bubbles, or the like employing laser light scattering is disclosed. A laser generation means is provided for generating a pair of coherent laser beams. These beams are directed along an axis and are caused to cross ...


3
William D Bachalo: Laser based tracking device for detecting the distance between a vehicle and a roadway marker. Merchant Gould Smith Edell Welter & Schmidt, March 8, 1994: US05293162 (35 worldwide citation)

A laser tracking device for the warning of vehicle weaving and steering assistance of vehicles, includes a laser generation apparatus for generating and transmitting a laser beam. A mirror is provided for sweeping the laser beam across a roadway surface. The mirror also receives a reflection of the ...


4
William D Bachalo: Method for measuring the size and velocity of spherical particles using the phase and intensity of scattered light. Aerometrics, Blakely Sokoloff Taylor & Zafman, January 22, 1991: US04986659 (33 worldwide citation)

An improved apparatus and method for determining the change in the effective cross-section of a sample volume defined by two crossed laser beams is disclosed. A laser generation means is provided for generating a pair of coherent laser beams and means are provided to change the separation, intersect ...


5
William D Bachalo: Apparatus for sizing particles, droplets or the like with laser scattering. Spectron Development Laboratories, Blakely Sokoloff Taylor & Zafman, May 11, 1982: US04329054 (30 worldwide citation)

An apparatus for sizing particles, droplets or the like, particularly suited for determining the size of droplets in high number density sprays, is described. The apparatus employs the interferometer principle and off-axis collection to limit probe volume and to limit the light scatter detection to ...


6
Khalid M Ibrahim, William D Bachalo: Method and apparatus for optimum signal burst detection. Aerometrics, Blakely Taylor Sokoloff & Zafman, February 22, 1994: US05289391 (16 worldwide citation)

The present invention provides a time efficient and practical method for signal burst detection. The signal is first applied to a set of linear transformations and input to a one-bit analog to digital converter and stored. The stored signal is then correlated with stored replications of sinusoidal w ...


7
Andrew S Inenaga, William D Bachalo, Subramanian V Sankar: Method and apparatus for precipitation detection and differentiation. Aerometrics, Blakely Sokoloff Taylor & Zafman, September 17, 1996: US05557040 (15 worldwide citation)

A direct backscatter technique provides for the detection of precipitation in a measuring volume. A source light beam is projected into the measuring volume. Light in the volume, including source light scattered from any precipitation within the volume, is collected and detected. A signal is generat ...


8
Khalid M Ibrahim, William D Bachalo: Method and apparatus for low signal to noise ratio instantaneous phase measurement. Aerometrics, Blakely Sokoloff Taylor & Zafman, September 15, 1998: US05808895 (10 worldwide citation)

The system and method of the present invention generates high resolution phase measurements without the high processing and memory overhead requirements found in prior art circuits and methods. Each signal sample (of N samples) is divided further into J segments each segment having K samples. The fr ...


9
William D Bachalo, Michael J Fidrich: System for analysis and selection of encapsulated cellular materials. Islet Technology, Patterson Thuente Skaar & Christensen P A, August 7, 2007: US07252987 (9 worldwide citation)

Capsules, entrained in a fluid medium, are directed into a channel deflection system designed to enable evaluation and separation of successfully encapsulated cellular material from the blanks and other debris. Preferably, the fluid media with the capsule is introduced into a first or main channel a ...


10
William D Bachalo: Compact apparatus providing multi-dimensional characterization of spherical objects using coherent light. Artium Technologies, Blakely Sokoloff Taylor & Zafman, October 24, 2006: US07126694 (8 worldwide citation)

A compact computer-controlled fully-packaged apparatus providing reliable multi-dimensional characterization of spherical objects in a field environment is disclosed. The apparatus has a rugged, free-space, integrated optical system with up to three lasers that generate at a laser-specific wavelengt ...