Abstract: An induction sensor measures vibrations of a turbo-machine fan blade. The induction sensor comprises a magnet and an induction coil wound upon the magnet parallel to the lines of the magnetic field generated by the magnet.

Abstract: A method is disclosed of measuring vibrations on turbo-machine rotary turbine blades utilizing an induction sensor at high temperatures. A set of magnets produces a magnetic field which results in a measurement signal generated in the sensor's coil which then can be interpreted to measure the vibrations.

Abstract: A method is disclosed of measuring vibrations on turbo-machine rotary turbine blades utilizing an induction sensor at high temperatures. A set of magnets produces a magnetic field which results in a measurement signal generated in the sensor's coil which then can be interpreted to measure the vibrations.

Abstract: An induction sensor measures vibrations of a turbo-machine fan blade. The induction sensor comprises a magnet and an induction coil wound upon the magnet transversely to the lines of the magnetic field generated by the magnet.

Abstract: The invention relates to a method of a continuous determination of an instantaneous position of an impeller blade tip (5′) in a rotor turbine machine, particularly in a turbine impeller (6) in a turbojet engine during its operation in a real condition in order to obtain a current information on a technical state of the blade (5). In a selected place of an housing (7) of a rotor turbo machine, in a movement plane of impeller blade tips (5′), it is arranged in a stable manner at least one microwave antenna (3) with an aperture shape (4) which is consistent with an internal surface of an housing (7). The microwave signal (11), which is produced by a microwave homodyne system, is emitted, and then received, through a microwave antenna (3). The output signal (9) from that system, which carries out information on each instantaneous position of an impeller blade tip (5′) in relation to an antenna aperture (4), is converted by an electronic system, and then it is read.

Abstract: Antenna centric duct 1 in the form of long cylinder has a coaxial channel of circular intersection 2 at one end, and a coaxial screwed tongue 3 at the other end. On one third of cylinder length 1 there is a lateral screwed port 4. With the help of the tongue 3, the cylinder 1 is coaxialy connected to the cylindrical housing 5 inside its cylindrical hollow 6 in which there is antenna sleeve 7 with necking, placed on the axis of the hollow 6. Inside the lateral screwed port 4 of the cylinder 1, there is a short support 8 of the waveguide. In the free end of the support, there is a transverse cut 9. In the transverse cut 9 of short support 8 of the waveguide, one end of the waveguide 10 in the shape of rod is located. Its second end is located in transverse cut 11 of long waveguide support 12, located in lateral screwed port 13 of the cylindrical housing 5, at its opposite end. On the housing 5 axis, there is the cut of rectangular intersection 15 to a depth of one third of the housing 5 length.

Abstract: Antenna centric duct 1 in the form of long cylinder has a coaxial channel of circular intersection 2 at one end, and a coaxial screwed tongue 3 at the other end. On one third of cylinder length 1 there is a lateral screwed port 4. With the help of the tongue 3, the cylinder 1 is coaxialy connected to the cylindrical housing 5 inside its cylindrical hollow 6 in which there is antenna sleeve 7 with necking, placed on the axis of the hollow 6. Inside the lateral screwed port 4 of the cylinder 1, there is a short support 8 of the waveguide. In the free end of the support, there is a transverse cut 9. In the transverse cut 9 of short support 8 of the waveguide, one end of the waveguide 10 in the shape of rod is located. Its second end is located in transverse cut 11 of long waveguide support 12, located in lateral screwed port 13 of the cylindrical housing 5, at its opposite end. On the housing 5 axis, there is the cut of rectangular intersection 15 to a depth of one third of the housing 5 length.

Abstract: The invention relates to a method of a continuous determination of an instantaneous position of an impeller blade tip (5′) in a rotor turbine machine, particularly in a turbine impeller (6) in a turbojet engine during its operation in a real condition in order to obtain a current information on a technical state of the blade (5). In a selected place of an housing (7) of a rotor turbo machine, in a movement plane of impeller blade tips (5′), it is arranged in a stable manner at least one microwave antenna (3) with an aperture shape (4) which is consistent with an internal surface of an housing (7). The microwave signal (11), which is produced by a microwave homodyne system, is emitted, and then received, through a microwave antenna (3). The output signal (9) from that system, which carries out information on each instantaneous position of an impeller blade tip (5′) in relation to an antenna aperture (4), is converted by an electronic system, and then it is read.