Sensor fastener arrangement

1. A sensor fastener arrangement ( 10 a - f ) for holding a sensor device ( 3 ), comprising:

a plurality of fastener elements ( 20 a , 20 b ),

wherein:

the plurality of fastener elements ( 20 a , 20 b ) are configured to arrange the sensor device ( 3 ) to a platform ( 1 ),

each respective one of the plurality of fastener elements ( 20 a , 20 b ) is rigid in a first state and reversibly deformable in a second state,

when the platform ( 1 ) of the sensor device ( 10 a - f ) and/or the sensor device ( 3 ) is exposed to an impact force that, in turn, exposes at least one fastener element of the plurality of fastener elements ( 20 a , 20 b ) to a compressive force exceeding a critical load of the at least one fastener element ( 20 a , 20 b ), the at least one fastener element ( 20 a , 20 b ) goes from being in the first state to temporarily being in the second state, whereby the at least one fastener element ( 20 a , 20 b ) goes from having a first rigid shape to temporarily being reversibly deformed, after which, when the impact force is terminated, the at least one fastener element ( 20 a , 20 b ) goes from temporarily being in the second state back to being in the first state, whereby the at least one fastener element ( 20 a , 20 b ) goes from temporarily being reversibly deformed to having the first rigid shape, wherein the sensor device ( 3 ) has a maximum acceleration limit defining the maximum acceleration the sensor device ( 3 ) may be exposed to without being damaged,

the critical load of the plurality of fastener elements ( 20 a , 20 b ) are selected such that the plurality of fastener elements ( 20 a , 20 b ) deform before the sensor device ( 3 ) is exposed to the maximum acceleration limit, and

the plurality of fastener elements ( 20 a , 20 b ) are rigid in an essentially straight configuration when being in the first state and temporarily reversibly deform by lateral deflection when being in the second state.

2. Sensor fastener arrangement ( 10 a - f ) according to claim 1 , wherein when the sensor device ( 3 ) is exposed to a force in turn exposing each respective one of the plurality of fastener elements to a compressive force, the compressive force acts on the at least one fastener element ( 20 a , 20 b ) along an axis of deformation, and wherein each respective one of the plurality of fastener elements ( 20 a , 20 b ) is reversibly deformable by a compressive movement along the axis of deformation.

3. Sensor fastener arrangement ( 10 a - f ) according to claim 1 , wherein:

each respective one of the plurality of fastener elements ( 20 a ) has an extension along a first axis (FE- 1 ), along a second axis (FE- 2 ) and along a third axis (FE- 3 ),

the extension along one of the first, second or third axes (FE- 1 , FE- 2 , FE- 3 ) is larger than the extension along the two remaining axes (FE- 2 , FE- 3 ), and

the extension along one of the two remaining axes (FE- 2 ) is larger than the extension along of the finally remaining axis (FE- 3 ).

4. Sensor fastener arrangement ( 10 d , 10 e , 10 f ) according to claim 1 , wherein in addition to the plurality of fastener elements ( 20 a , 20 b ) the sensor fastener arrangement ( 10 d , 10 e , 10 f ) comprises at least one damper ( 23 , 24 ).

5. Sensor fastener arrangement ( 10 d , 10 e , 10 f ) according to claim 1 , wherein in addition to the plurality of fastener elements ( 20 a , 20 b ) the sensor fastener arrangement ( 10 d , 10 e , 10 f ) comprises at least one damper ( 23 , 24 ) and wherein the at least one damper ( 23 , 24 ) is arranged to dampen an extending movement along the axis of deformation.

6. Sensor fastener arrangement ( 10 d , 10 e , 10 f ) according to claim 1 , wherein:

in addition to the plurality of fastener elements ( 20 a , 20 b ) the sensor fastener arrangement ( 10 d , 10 e , 10 f ) comprises at least one damper ( 23 , 24 ), and

the at least one damper ( 23 , 24 ) is arranged to dampen a compressive movement along the axis of deformation.

7. Sensor fastener arrangement ( 10 d , 10 e , 10 f ) according to claim 4 , wherein the at least one damper ( 23 , 24 ) is a damper ( 23 , 24 ) from a group of possible damper arrangements comprising:

hydraulic dampers

viscous dampers, and/or

spring dampers.

8. Sensor fastener arrangement ( 10 a - f ) according to claim 1 , wherein:

each respective one of the plurality of fastener elements ( 20 a , 20 b ) is attachable to a sensor device ( 3 ) in a first end ( 21 a ) and to a platform ( 1 ) in a second end ( 21 b ), and

the first end ( 21 a ) and the second end ( 21 b ) are opposite ends of each respective one of the plurality of fastener elements ( 20 a , 20 b ) along the axis of deformation.

9. Sensor fastener arrangement ( 10 a - f ) according to claim 1 , wherein at least one of Euler's laws of critical load applies for the plurality of fastener elements ( 20 a , 20 b ) and whereby the plurality of fastener elements ( 20 a , 20 b ) are selected based on their critical load.

10. Sensor fastener arrangement ( 10 a , 10 d , 10 e ) according to claim 1 , wherein the first and second ends ( 21 a ; 21 b ) of at least one of the plurality of fastener elements ( 20 a ) are configured to be fixedly attachable to the sensor device ( 3 ) and to the platform ( 1 ), whereby the critical load of the at least one fastener element ( 20 a ) is determined by applying Euler's fourth law of critical load.

11. Sensor fastener arrangement ( 10 c , 10 f ) according to claim 1 , wherein the first and second ends ( 21 a ; 21 b ) of at least one of the plurality of fastener elements ( 20 a , 20 b ) are configured to be hingedly attachable to the sensor device ( 3 ) and to the platform ( 1 ), whereby the critical load of the at least one fastener element ( 20 a , 20 b ) is determined by applying Euler's second law of critical load.

12. Sensor fastener arrangement ( 10 b ) according to claim 1 , wherein:

one of the first and second ends ( 21 a ; 21 b ) of at least one fastener element of the plurality of fastener elements ( 20 a ) is configured to be attachable to the sensor device ( 3 ) and the other end ( 21 b ; 21 a ) is configured to be attachable to the platform ( 1 ), and

one of the first and second ends ( 21 a ; 21 b ) of the at least one fastener element ( 20 a ) is fixedly attachable and the other end ( 21 b ; 21 a ) is hingedly attachable, whereby the critical load of the at least one fastener element ( 20 a ) is determined by applying Euler's third law of critical load.

13. Sensor fastener arrangement ( 10 a - f ) for holding a sensor device ( 3 ) according to claim 1 , wherein the sensor device ( 3 ) is an antenna, a rangefinder or an aiming device.

14. An antenna installation ( 4 ) comprising a sensor fastener arrangement ( 10 a - f ) according to claim 1 and a sensor device ( 3 ) in form of an antenna.

15. An antenna installation ( 4 ) according to claim 14 , wherein the antenna is a panel antenna.

16. An antenna installation ( 4 ) according to claim 1 , wherein the antenna is a phased array antenna.

17. A ship comprising an antenna installation ( 4 ) according to claim 1 .