Publication

Horological oscillator

Simon Nessim Henein, Ilan Vardi, Etienne Frédéric Gabriel Thalmann, Mohammad Hussein Kahrobaiyan, Billy Nussbaumer
2019
Patents

Abstract

Horological oscillator comprising: - a first inertial body (141; 151; 1305; 1405; 1505; 301; 311; 314; 41; 51; 507; 529; 544; 541; 901; 903) arranged to rotate with respect to a first axis; - a second inertial body (143; 153; 1306; 1406; 1506; 302; 313; 316; 42; 52; 509; 531; 546; 543; 902; 904) arranged to rotate with respect to a second axis parallel to said first axis; - at least one elastic element (144, 155, 156, 157; 154, 155, 156, 157; 1319, 1320, 1321, 1322; 1419, 1420, 1421, 1422; 1501, 1502, 1503, 1504, 1507; 305, 306; 317, 318, 319, 320; 321, 322, 323, 324; 43, 44, 45, 46; 53, 54, 55, 56; 501, 502, 503, 504, 505, 506; 521, 522, 523, 524, 525, 526, 527, 528; 551, 552, 553, 554, 555, 556, 547, 548, 549, 550, 557, 558, 559, 560; 924, 925, 926, 927, 928, 929, 930, 931, 932, 933, 934, 935) arranged to apply a restoring torque to at least one of said inertial bodies so as to urge said inertial body towards a neutral position. According to the invention, the oscillator further comprises: - a substantially rigid coupler link (142; 152; 1307; 1407; 1507; 307; 312; 315; 47; 57; 508; 530; 545; 542; 745; 746; 800; 810; 922; 951) attached at a first pivot point to said first inertial body (141; 151; 1305; 1405; 1505; 301; 311; 314; 41; 51; 507; 529; 544; 541; 901; 903) and at a second pivot point to said second inertial body such that said inertial bodies are arranged to rotate synchronously about their respective axes, wherein said substantially rigid coupler link (142; 152; 1307; 1407; 1507; 307; 312; 315; 47; 57; 508; 530; 545; 542; 745; 746; 800; 810; 922; 951) comprises a bar or rod and is arranged to transmit force between said first inertial body (141; 151; 1305; 1405; 1505; 301; 311; 314; 41; 51; 507; 529; 544; 541; 901; 903) and said second inertial body (143; 153; 1306; 1406; 1506; 302; 313; 316; 42; 52; 509; 531; 546; 543; 902; 904) according to a vector substantially aligned along an axis (λ2) joining the first and second pivot points.

Official source

Simon Nessim Henein, Ilan Vardi, Etienne Frédéric Gabriel Thalmann, Mohammad Hussein Kahrobaiyan, Billy Nussbaumer
2019
Patents

Abstract

Official source

Related concepts (21)

Inertial navigation system

An inertial navigation system (INS) is a navigation device that uses motion sensors (accelerometers), rotation sensors (gyroscopes) and a computer to continuously calculate by dead reckoning the position, the orientation, and the velocity (direction and speed of movement) of a moving object without the need for external references. Often the inertial sensors are supplemented by a barometric altimeter and sometimes by magnetic sensors (magnetometers) and/or speed measuring devices.

Inertial frame of reference

In classical physics and special relativity, an inertial frame of reference (also called inertial space, or Galilean reference frame) is a frame of reference not undergoing any acceleration. It is a frame in which an isolated physical object—an object with zero net force acting on it—is perceived to move with a constant velocity or, equivalently, it is a frame of reference in which Newton's first law of motion holds.

Non-inertial reference frame

A non-inertial reference frame is a frame of reference that undergoes acceleration with respect to an inertial frame. An accelerometer at rest in a non-inertial frame will, in general, detect a non-zero acceleration. While the laws of motion are the same in all inertial frames, in non-inertial frames, they vary from frame to frame depending on the acceleration. In classical mechanics it is often possible to explain the motion of bodies in non-inertial reference frames by introducing additional fictitious forces (also called inertial forces, pseudo-forces and d'Alembert forces) to Newton's second law.

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