Saab AB

About: Saab AB is a company organization based out in Thun, Switzerland. It is known for research contribution in the topics: Signal & Antenna (radio). The organization has 862 authors who have published 928 publications receiving 8807 citations. The organization is also known as: Saab AB & Svenska Aeroplan AB.

A device arranged to illuminate an area

Abstract: This invention concerns a device (5) arranged to illuminate an area. The device comprises a light source (1) arranged to transmit a light lobe coded with information, and having a predetermined solid angle defining the width of the lobe. The device (5) is characterized in that the light lobe is expandable/compressible between a first mode in which the light lobe has a first predetermined solid angle and a second mode in which the light lobe has a second predetermined solid angle and in that the light lobe is arranged to carry first information in the first mode and second information in the second mode.

Improved antenna system

Abstract: The disclosure relates to an antenna system [1] comprising a mast [7], in turn comprising a base section [2b] and an extendable section [a], and an antenna [6]. The antenna [6] is arranged to be rotatable and the extendable section [2a] comprises a plurality of telescopic sections [8] whereby the extendable section [2a] may adopt a retracted configuration and a deployed configuration. The mast [7] is foldable in relation to a platform [5] in a vertical plane [PLxy] essentially parallel to the longitudinal direction of the extendable section [LD-es] and to the longitudinal direction of the base section [LD- bs] by means of a first pivot joint [9]. According to the disclosure the antenna system [1] may be arranged to the platform [5], wherein the platform [5] may be in form of a vehicle [5-v], whereby an antenna arrangement [101] is formed. The disclosure further relates to methods of avoiding oscillations for an antenna system [1] and/or an antenna arrangement [101],and to a method of undeploying an antenna arrangement

A fluid actuator arrangement and a method for control of a fluid actuator arrangement

Abstract: The present invention regards a fluid actuator arrangement and a method of moving a first piston rod of the fluid actuator arrangement comprising a first piston (P1) comprising a first clamping device (K1), the first piston (P1) is arranged movable in a first cylinder housing (C1) in a first axial direction (X), a second piston (P2) comprising a second clamping device (K2), the second piston (P2) is arranged movable in a second cylinder housing (C2) in the first axial direction (X). A first piston rod (R1) extending through the first clamping device (K1) and through the second clamping device (K2); the first piston (P1) is configured to clamp and move the first piston rod (R1) a first distance corresponding with a first piston stroke length that the first piston (P1) is configured to perform in the first cylinder housing (C1); the second piston (P2) is configured to clamp and move the first piston rod (R1) a second distance corresponding with a second piston stroke length that the second piston (P2) is configured to perform in the second cylinder housing (C2); wherein the first piston stroke length is longer than the second piston stroke length. The first piston stroke length that the first piston (P1) is configured to perform is selectively provided for achievement of a feeding mode and the second piston stroke length that the second piston (P2) is configured to perform is selectively provided for achievement of a fine tuning mode.

Pivot axle arrangement

Abstract: The disclosure relates to a pivot axle arrangement for providing that two structural elements are pivotally movable in relation to each other. The pivot axle arrangement comprises a first and a second axle spindle for holding an outer axle,a first and a second bearing element and the outer axle. The outer axle is formed as a hollow cylinder. An inner axle is concentrically arranged in a longitudinal direction inside of the outer axle such that the inner axle extends between said first and second axle spindle. The ends of the inner axle are fastened to the first and second axle spindles by a first and second fastening means such that the first and second axle spindles are interconnected via said inner axle.

Efficient and reliable testing of laser rangefinders

Abstract: The invention relates to a laser rangefinder tester for testing a laser rangefinder (1). The proposed tester includes a reception means (210) adapted to receive incoming laser energy (LL T ) emitted from the laser rangefinder (1), and an optical delay means (260) including a number of optical waveguides (25) having a respective proximal end surface and a respective distal end surface. A ray focusing means (240) focuses an amount (LL TD ) of the incoming laser energy (LL T ) onto the proximal end surfaces. At least a portion of an amount of laser energy (LL TD ) that has propagated from the proximal end surface to the distal end surface (270) of a waveguide (25) is reflected at the distal end surface (270), and propagates back to the proximal end surface, so that this energy represents a component in a delayed laser energy (LL R ) emitted from the tester for detection by the laser rangefinder (1).