David Anthony Battle

US Patent:

7342657, Mar 11, 2008

Filed:

Nov 3, 2005

Appl. No.:

11/266573

Inventors:

Robert H. Hart - Cary NC, US
David R. Battle - Durham NC, US
Michael R. Groh - Raleigh NC, US

Assignee:

GretagMacbeth, LLC - New Windsor NY

International Classification:

G01N 21/47

US Classification:

356319, 356446

Abstract:

The present disclosure provides for a device, as well as a system and method associated therewith, for, among other things, providing: (i) up to five distinct measurement angles along with an illumination reference channel; (ii) a plurality of illumination sources that provide a focused beam of illumination at specific desired angles of incidence to a sample under target; (iii) a shutter mechanism incorporating a calibration transfer standard; (iv) an internal optical system that is operatively associated with a gimbaled structure suitable to allow vertical and angular conformity to a target sample; and (v) a handheld and operated enclosure incorporating a user interface with a visual display unit complete with interactive navigation means and an activation switch, and a number of surface detecting contact elements operatively associated with the optical system and shutter mechanism.

US Patent:

20160109525, Apr 21, 2016

Filed:

Dec 9, 2014

Appl. No.:

14/564927

Inventors:

Dat Tan Chau - Raleigh NC, US
David Robert Battle - Durham NC, US

Assignee:

NDSL, INC. - Raleigh NC

International Classification:

G01R 31/36

Abstract:

Reducing or avoiding noise in measured signals of a tested battery cell(s) in a battery power system is disclosed. A battery monitoring device(s) coupled to a tested battery cell(s) applies test current pulses at a predetermined frequency to place an effective alternating current (AC) load on the tested battery cell(s). The resulting AC voltage signal generated across the tested battery cell(s) is sampled at the frequency of the test current to convert the AC voltage signal to a direct current (DC) voltage signal to be measured to determine the state-of-health of the tested battery cell(s). To avoid or reduce noise in the DC voltage signal, a noise spectrum of noise signals at defined frequencies induced on the tested battery cell(s) is determined. The battery monitoring device sets the frequency of the test current pulse at a determined reduced-noise frequency to avoid noise signals being present in the DC voltage signal.

US Patent:

20140242432, Aug 28, 2014

Filed:

Feb 28, 2013

Appl. No.:

13/780795

Inventors:

- Raleigh NC, US
David Robert Battle - Durham NC, US
Christopher James Belcher - Cary NC, US
Duncan Joseph Brown - Boulder CO, US
George Feller - Carrboro NC, US

Assignee:

NDSL, Inc. - Raleigh NC

International Classification:

G08B 21/18
H01M 10/48

US Classification:

429 90, 3406361

Abstract:

Embodiments disclosed include automatically determining alarm threshold settings for monitored battery cells in battery systems. Battery monitoring control units are provided that are configured to initiate battery performance tests (e.g., ohmic tests) on battery cells in a battery system. Failing battery cells are identified as those battery cells having battery performance characteristics outside defined battery performance threshold settings. An initial performance alarm threshold setting is established for each battery cell because of unique performance characteristics that can substantially change during initial charging cycles before the battery cells have settled. A settled performance alarm threshold setting specific to each battery cell is then established based on battery cell performance during the defined settling time period. In this manner, more accurate performance alarm threshold settings are automatically established for monitoring each battery cell based on the individual performance characteristics of each battery cell during the settling time period.