公开(公告)号：WO1991012514A1

公开(公告)日：1991-08-22

申请号：PCT/US1991000871

申请日：1991-02-11

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  PIERCE, Brian, M. ,  CHANG, David, B.

IPC: G01N11/00

CPC classification number: G01N11/00

Abstract: A method and apparatus for non-contact measurement of the viscosity of a liquid such as paint. In accordance with the method and apparatus, the surface of a liquid is perturbed with a standing wave of predetermined wavelength. This perturbation is effected by directing a burst of air against the surface of the liquid using periodically spaced air nozzles. The frequency and rate of decay of the induced surface wave is measured using typically optical means including a reflected light beam. The measured frequency and decay rate are combined with the known depth of the liquid sample in a computing circuit to provide a measurement of fluid viscosity.

公开(公告)号：WO1991013444A1

公开(公告)日：1991-09-05

申请号：PCT/US1991000867

申请日：1991-02-11

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  PIERCE, Brian, M.

IPC: H01B01/12

CPC classification number: H01B1/122 ,  B05D1/045 ,  B05D7/02 ,  B05D2201/00 ,  C08L71/02 ,  C08L2666/22 ,  C08L2666/02

Abstract: An ion-conductive article and method of making the same. A charge material is formed that includes an ion-conductive polymer and a generally non-ion-conductive polymer. The charge material is fabricated into an ion-conductive article.