Patents by Inventor Mikhail Mikhailovich Bubnov

Mikhail Mikhailovich Bubnov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fiber-optic pressure sensor, variants and method for producing a resilient membrane
    Publication number: 20030138185
    Abstract: The inventions relate to measurements of a hydrostatic and/or fast-changing pressure by optical means, and are suitable for aerodynamic investigations of aircraft and small spacecraft, in robotics, including small force micro-clamps, in remote pressure monitoring (in wells, vessels, cylinders), in medicine and medical and biological investigations, hydroacoustics, security systems. The object is to improve the sensitivity and enhance the temperature and vibration stability of a pressure sensor. The pressure sensor is a low Q-factor Fabry-Perot cavity/interferometer 6 at the end of a single-mode optical fiber 1 with the 4% Fresnel reflection from the silica glass/air interface. Another movable mirror of the cavity is formed by an end face 10 of a short (1-3 mm) optical fiber length 9 having a small inertial mass and inserted into the center of a flexible membrane 9 of 500-700 &mgr;m in diameter, tightly sealing a small air volume of about 1-3 mm3 inside a second capillary 3 with the external diameter of 0.
    Type: Application
    Filed: January 30, 2003
    Publication date: July 24, 2003
    Applicant: Nauchny Tsentr Volokonnoi Optiki Pri Institute Obschei Fiziki Rossiiskoi Akademii Nauk
    Inventors: Evgeny Mikhailovich Dianov, Mikhail Ivanovich Belovolov, Mikhail Mikhailovich Bubnov, Sergei Lvovich Semenov
  • Fiber-optic pressure sensor, variants and method for producing a resilient membrane
    Patent number: 6539136
    Abstract: The inventions relate to measurements of a hydrostatic and/or fast-changing pressure by optical means, and are suitable for aerodynamic investigations of aircraft and small spacecraft, in robotics, including small force micro-clamps, in remote pressure monitoring (in wells, vessels, cylinders), in medicine and medical and biological investigations, hydroacoustics, security systems. The object is to improve the sensitivity and enhance the temperature and vibration stability of a pressure sensor. The pressure sensor is a low Q-factor Fabry-Perot cavity/interferometer 6 at the end of a single-mode optical fiber 1 with the 4% Fresnel reflection from the silica glass/air interface. Another movable mirror of the cavity is formed by an end face 10 of a short (1-3 mm) optical fiber length 9 having a small inertial mass and inserted into the center of a flexible membrane 9 of 500-700 &mgr;m in diameter, tightly sealing a small air volume of about 1-3 mm3 inside a second capillary 3 with the external diameter of 0.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: March 25, 2003
    Assignee: Nauchny Tsentr Volokonnoi Optiki PRI Institute Obschei Fiziki Rossiiskoi Adademii Nauk
    Inventors: Evgeny Mikhailovich Dianov, Mikhail Ivanovich Belovolov, Mikhail Mikhailovich Bubnov, Sergei Lvovich Semenov