公开(公告)号：US20180011199A1

公开(公告)日：2018-01-11

申请号：US15410080

申请日：2017-01-19

Applicant: GOVERNMENT OF UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE

Inventor： MICHAEL A. LOMBARDI

IPC: G01S19/23

CPC classification number: G01S19/235 ,  G01S19/14 ,  G01S19/21 ,  G04R40/06

Abstract: A disciplined clock provides a disciplined time and a disciplined frequency synchronous with a reference clock. The disciplined clock includes: a time receiver to: receive a common view signal from the common view clock; and produce a receiver timing signal; a local clock to: receive a frequency correction; and produce a local timing signal; a time interval counter to: receive the receiver timing signal from the time receiver; receive the local timing signal from the lock clock; and determine a time difference between the receiver timing signal and the local timing signal; and a controller to: receive the time difference from the time interval counter; and communicate the frequency correction, based on the time difference, to the local clock.

公开(公告)号：US20170199114A1

公开(公告)日：2017-07-13

申请号：US15403943

申请日：2017-01-11

Applicant: GOVERNMENT OF UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE

Inventor： JASON D. HOLM ,  ROBERT R. KELLER ,  KATHERINE P. RICE

IPC: G01N21/03

CPC classification number: G01N21/03 ,  G01N3/04 ,  G01N23/00 ,  G02B21/361 ,  H01J37/20 ,  H01J37/244

Abstract: A detector mask transmits selectively a plurality of probe particles to a particle detector, the detector mask includes: a plate including a plate wall disposed in the plate and enclosing a transmission orifice arranged in a transmission profile to: transmit probe particles having a trajectory coincident with the transmission orifice, block probe particles having a trajectory external to the transmission orifice, and form a probe particle beam comprising the probe particles transmitted by the transmission orifice to the particle detector, wherein the transmission profile includes a sector, a semi-circle, an annular sector, or a combination including at least one of the foregoing first transmission profiles.

公开(公告)号：US20170199021A1

公开(公告)日：2017-07-13

申请号：US15373221

申请日：2016-12-08

Applicant: GOVERNMENT OF UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE

Inventor： CHRISTOPHER M. SMITH ,  MATTHEW S. HOEHLER

IPC: G01B5/00 ,  G01B5/04

CPC classification number: G01B7/16 ,  G01B7/003

Abstract: A differential compensator reduces uncertainty in determination of movement of a structural member and includes: a first probe line to attach to the structural member and to provide a first combination of displacement of the structural member and a first expansion of the first probe line in response to movement of the structural member and expansion of the first probe line; and a second probe line having a coefficient of thermal expansion that is different than that of the first probe line, the second probe line to attach to the structural member at a position on the structural member proximate to a point of attachment of the first probe line to the structural member and to provide a second combination of displacement of the structural member and second expansion of the second probe line in response to movement of the structural member and expansion of the second probe line.

公开(公告)号：US20170199113A1

公开(公告)日：2017-07-13

申请号：US15403931

申请日：2017-01-11

Applicant: GOVERNMENT OF UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE

Inventor： JASON D. HOLM ,  ROBERT R. KELLER ,  KATHERINE P. RICE

IPC: G01N21/03

CPC classification number: G01N21/03 ,  G01N3/04 ,  G01N23/00 ,  G02B21/361 ,  H01J37/20 ,  H01J37/244

Abstract: A detector mask transmits selectively a plurality of probe particles to a particle detector, the detector mask includes: a plate including a plate wall disposed in the plate and enclosing a transmission orifice arranged in a transmission profile to: transmit probe particles having a trajectory coincident with the transmission orifice, block probe particles having a trajectory external to the transmission orifice, and form a probe particle beam comprising the probe particles transmitted by the transmission orifice to the particle detector, wherein the transmission profile includes a sector, a semi-circle, an annular sector, or a combination including at least one of the foregoing first transmission profiles.

公开(公告)号：US10466363B2

公开(公告)日：2019-11-05

申请号：US15410080

申请日：2017-01-19

Applicant: GOVERNMENT OF UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE

Inventor： Michael A. Lombardi

IPC: G01S19/23 ,  G01S19/14 ,  G01S19/21 ,  G04R40/06

Abstract: A disciplined clock provides a disciplined time and a disciplined frequency synchronous with a reference clock. The disciplined clock includes: a time receiver to: receive a common view signal from the common view clock; and produce a receiver timing signal; a local clock to: receive a frequency correction; and produce a local timing signal; a time interval counter to: receive the receiver timing signal from the time receiver; receive the local timing signal from the lock clock; and determine a time difference between the receiver timing signal and the local timing signal; and a controller to: receive the time difference from the time interval counter; and communicate the frequency correction, based on the time difference, to the local clock.