Abstract: The invention relates to a method and a system for adjusting the torque of a mass and spinning wheel rotator in a wave power plant. The torque of a rotator rotating around a vertical shaft is compensated partially or completely with a compensating moment which is produced by an electric machine. Acceleration components (ACCx and ACCy) are measured for a given point of the wave power plant's floating body (1) in directions perpendicular to each other. A vector (Vxy) with a magnitude formula (A) and a direction (aAcc) is established for said acceleration components, the direction or angular position (a) of a rotator (2) is monitored and its lag (?LAG) from the acceleration vector's direction (?Acc) is determined. The compensating moment is adjusted as dependent on a compensation factor (B) whose sub-factors are the magnitude of the body's acceleration vector (Vxy) and the sine of the angle of lag (sin ?LAG).

Abstract: A method for converting the energy of water waves into electricity by means of a wave power plant, which comprises a floating body (1), a rotator (3) which is supported on the body and rotates around a rotator shaft (2) which is on average vertical, a gyro (5) which rotates around a gyro shaft (4) which is on average horizontal, the gyro and the gyro shaft rotating with the rotator around the rotator shaft (2), and at least one generator (6), which is connected to rotate together with the gyro or the rotator. By means of the rotator's mass (M) is produced a moment rotating the rotator on the one hand by means of the inclination moment generated by the inclination of the body and gravitation, and on the other hand by means of the acceleration moment generated by the horizontal acceleration of the rotator shaft (2). The inclination and acceleration are caused by directing the internal flows of the wave at the submerged part of the body (1).

Abstract: A method for converting the energy of water waves into electricity by means of a wave power plant and a wave power plant, which comprises a floating body (1), a rotator (3) which is supported on the body and rotates around a rotator shaft (2) which is on average vertical, a gyro (5) which rotates around a gyro shaft (4) which is on average horizontal, the gyro and the gyro shaft rotating with the rotator around the rotator shaft (2), and at least one generator (6), which is connected to rotate together with the gyro or the rotator. By means of the rotator's mass (M) is produced a moment rotating the rotator on the one hand by means of the inclination moment generated by the inclination of the body and gravitation, and on the other hand by means of the acceleration moment generated by the horizontal acceleration of the rotator shaft (2). The inclination and acceleration are caused by directing the internal flows of the wave at the submerged part of the body (1).

Abstract: The object of the invention is a method for defining elastic deformations and integral angle between of the most important parts of a gyratory compactor, in which method the angle of gyration of a gyratory compactor is measured during the use of the gyratory compactor. The object of the invention is also a device in accordance with the claim 1, which device includes measuring elements (13, 20, 27, 28) for measuring the angle of gyration of a gyratory compactor. Characteristic to the method in accordance with the invention is the fact that a loading device (1) is adjusted in the place of mass specimen, the loading of which on the gyratory compactor is earlier known and that the gyratory compactor will be in use while the loading device (1) is inside the gyratory compactor. Characteristic to the device in accordance with the invention is the fact that the device includes at least one loading device which can be placed inside the specimen cylinder mold of the gyratory compactor.

Abstract: The object of the invention is a method for defining elastic deformations and integral angle between of the most important parts of a gyratory compactor, in which method the angle of gyration of a gyratory compactor is measured during the use of the gyratory compactor. The object of the invention is also a device in accordance with the claim 1, which device includes measuring elements (13, 20, 27, 28) for measuring the angle of gyration of a gyratory compactor. Characteristic to the method in accordance with the invention is the fact that a loading device (1) is adjusted in the place of mass specimen, the loading of which on the gyratory compactor is earlier known and that the gyratory compactor will be in use while the loading device (1) is inside the gyratory compactor. Characteristic to the device in accordance with the invention is the fact that the device includes at least one loading device which can be placed inside the specimen cylinder mold of the gyratory compactor.

Abstract: Subject of the invention is a method to measure the compaction properties of soil and other similar masses. A mass specimen is placed in a cylinder. The mass specimen is then pressed with standard pressure between an upper platen and a lower platen, and the height of the specimen is measured. Also subject of the invention is a device to measure the compaction properties of soil and other similar masses. Characteristic to the method and apparatus according to the invention is the fact that there is a specimen cylinder (2) attached to the frame (1) to be rotated mainly with respect to its central axis.

Abstract: Subject of the invention is a method to measure properties of compaction of masses of the soil and other masses of the kind. A mass specimen in a cylinder is pressed with standard pressure between an upper platen and a lower platen and the height of the specimen is measured in this method. Subject of the invention is also a device to measure properties of the compaction of masses of the soil and other masses of the kind. Characteristic to the method according to the invention is the fact that the mass and the compaction occurs. Characteristic to the device according to the invention is the fact that there is a specimen cylinder (2) attached to the frame (1) to be rotated mainly with respect to its centre axle.