摘要:
There is disclosed a portable instrument including an optical device (4; 5; 6) for measuring a physiological quantity, particularly the heart rhythm, and data emission and/or reception means, the optical device including at least one light source (41; 51; 61) for subjecting a portion of an organic tissue (10) to a light emission and at least one photoreceptor (42; 52, 53, 54; 62, 64, 66) for detecting the intensity of the light emission after propagation in the organic tissue. The optical device also forms the data emission and/or reception means, said at least one light source and/or said at least one photoreceptor being arranged for respectively emitting data to an external unit or receiving data from said external unit.
摘要:
The strike mechanism of a watch includes a gong secured by one end thereof to a gong-carrier integral with a plate, a hammer rotatably mounted on the plate for striking the gong at predetermined times, a damping counterspring for keeping the hammer at a distance from the gong in an idle mode, and a drive spring for driving the hammer. The drive spring includes one end secured to the plate and one end that is free to move. The spring is windable so that the free end of the drive spring drives the hammer against the gong in a strike mode to generate an acoustic sound. The strike mechanism further includes a stop member on the path of the hammer drive spring in the direction of the gong for increasing the rotational strike speed following contact of an intermediate part of the drive spring acting against the stop member.
摘要:
A method of fabricating a reinforced silicon micromechanical part includes: micromachining the part, or a batch of parts in a silicon wafer; forming a silicon dioxide layer over the entire surface of the part, in one or plural operations, so as to obtain a thickness of silicon dioxide that is at least five times greater than the thickness of native silicon dioxide; and removing the silicon dioxide layer by etching.
摘要:
The gong for the striking work or alarm of a watch is configured to produce a sound within the audible frequency range when it is struck by at least one hammer. This gong is made of a material, wherein the square root of the ratio between the elasticity module of the material divided by the volumic mass of the selected material is less than 3300 m/s, so as to allow the gong to produce a rich sound, comprising a large number of partials, within the audible frequency range. The selected material may be, for example, gold.
摘要:
Method of fabricating a balance spring assembly in silicon including a hairspring made in a wafer of given crystalline orientation, in a plane. The volume of the assembly is broken down into sub-components, inscribed in parallelepiped prisms, in secant pairs, at the junction areas, perpendicular to each other, each made in a wafer selected for the thickness or crystalline orientation thereof. A terminal curve is made in an orthogonal plane to that of the hairspring joining it directly to a point in space, the projection of which into the plane is located external to the hairspring. The sub-components are assembled at the junction areas by assembling device.
摘要:
The watch striking mechanism (1) includes a gong, which is fixed via one end thereof to a gong-carrier integral with a plate, a hammer rotatably mounted on the plate to strike the gong at determined times, a damper counter-spring (5) for keeping the hammer away from the gong in an idle mode, and a drive spring (3) for the hammer. The drive spring includes an end (3b) fixed to the plate and an end (3a) that is free to move. The spring can be wound so that the free end (3a) of the spring drives the hammer (2) against the gong (21) in a strike mode to produce an acoustic sound. The striking mechanism includes means (10) for actuating the damper counter-spring (5) in a strike mode with a time lag after the hammer (2) strikes the gong, so that after the hammer strikes the gong, the counter-spring pushes said hammer towards an idle position. The actuating means includes a stop member mounted on the damper counter-spring to be actuated via the drive spring when in action just after the hammer strikes the gong.
摘要:
The striking work device of a timepiece includes a gong (4) surrounding a movement and extending in approximately one plane, and a gong-carrier secured to a watch plate of the timepiece. The gong is fixed to the gong-carrier. At least one hammer (6) of the striking work device strikes an impact surface (8) of the gong (4) to cause said gong to vibrate. The surface (8) of said gong which the hammer strikes is inclined relative to the normal to said plane.
摘要:
The striking work device of a timepiece (1) includes a gong (2) surrounding a movement and extending in approximately one plane (x, y), and a gong-carrier (3) secured to a watch plate (8). The gong is fixed to the gong-carrier. At least one hammer (5) strikes the gong (2) to cause said gong to vibrate. The hammer (5) strikes the gong at an inclined incidence relative to said plane.
摘要:
The invention concerns a watch including a case fitted with a glass and containing display means able to be observed through the glass, characterised in that said glass is made from a plate formed of a fiber optic group.
摘要:
The invention concerns a watch with a striking work including a bottom plate and a gong including two ends, the gong being secured via a first end to the bottom plate. According to the invention, the second end of the gong is also secured to said bottom plate.