Abstract: Method for operating a display device driven by at least one stepping motor with display scales, having the following steps: determining suitable step widths at least in ranges affected by stroboscopic flicker effects when driving in each case one stepping motor for moving the display scale in a measuring run when starting the instrument or on request, storing the determined step widths in the form of a matching parameter, and operating the stepping motor(s) with a suitable step-width resolution in the ranges that are identified as affected by the stroboscopic flicker effects to be avoided.

Abstract: Method for operating a display device driven by at least one stepping motor with display scales, having the following steps: determining suitable step widths at least in ranges affected by stroboscopic flicker effects when driving in each case one stepping motor for moving the display scale in a measuring run when starting the instrument or on request, storing the determined step widths in the form of a matching parameter, and operating the stepping motor(s) with a suitable step-width resolution in the ranges that are identified as affected by the stroboscopic flicker effects to be avoided.

Abstract: The invention concerns a compass having an electro magnetic half-shell transformer energy transmission and opto electronic data transmission. To avoid a slipring connection during the transfer of supply voltage at least one winding on the primary half-shell is connected to a controllable input voltage source via a H-bridge circuit, and at least one secondary winding having taps is provided at the other half-shell coil.

Abstract: The invention concerns a compass having an electro magnetic half-shell transformer energy transmission and opto electronic data transmission.

Abstract: An angle detection device with a data transmission path on an n·360° bearing assembly with at least one scanning disk (21) arranged on one of two components at right angles to the axis of rotation, and with electro-optical illumination and detection means on the respective components held together by the bearing assembly, for scanning the instantaneous angle of the scanning disk (21), wherein electro-optical data transmission means are provided on said scanning disk (21) and on a surface opposite said scanning disk (21).

Abstract: An angle detection device with a data transmission path on an n·360° bearing assembly with at least one scanning disk (21) arranged on one of two components at right angles to the axis of rotation, and with electro-optical illumination and detection means on the respective components held together by the bearing assembly, for scanning the instantaneous angle of the scanning disk (21), wherein electro-optical data transmission means are provided on said scanning disk (21) and on a surface opposite said scanning disk (21).

Abstract: A first liquid container has therein a level control including a float valve, a storage tank or second container and a third container having therein a liquid which is maintained at a fixed liquid level. The third container is connected to the liquid in the first container by the float valve, and is replenished by the liquid in the storage tank. Preferably the storage tank is designed as an evaporator, with a condensate separator plate or surface arranged above the third container which also has an overflow to the storage tank. A temperature stabilizer keeps the liquid in the first liquid container at a temperature above ambient, and the storage tank is in contact with the liquid in the first container to be warmed thereby, and the condensate separator is cooled by ambient air.

Abstract: The invention refers to a process for scanning a gyroscopic instrument. The invention is characterised by the collection of gyroscopic data being effected by true angle scanning. In order to apply the process of the invention, a gyroscopic instrument including a gyroscopic scanning system is required in which the gyroscopic scanning system is coupled with a rotating, scanned and/or scanning unit. The process may also refer to a gyroscopic instrument including a gyroscopic scanning system in which a scanning module (such as a CCD sensor) is arranged on the side of the gyroscopic instrument as a scanning device, directly scanning horizontal and vertical true angle identifications on a gyroscopic instrument.

Abstract: The invention relates to a universally movable suspension member for a direction indicating display system, especially for a gyro system (2), in which a bellows unit (1) is provided between a revolving disk (3) and the gyro system (2). The suspension member is designed as a double-bellows unit including two oppositely folded bellows (5, 6) so that, while a reliable and accurate indication is obtained, the volume of construction is decreased and the manufacturing costs are reduced.

Abstract: In this gyro compass the direction-indicating gyro system is suspended pivotably in all directions from a pendulum, which is mounted to rotate about a vertical axis in a frame integral with a ship, and which has on its upper end an element that extends into a tank containing a damping fluid for dampening oscillations of the pendulum.