Patent ID: 11971428
Assignee: MERLIN TECHNOLOGY GMBH
Field: Measurement (Instruments)
Classification: CPC G  B | IPC G

Claim 0:
1. An accelerometer arrangement configured for determining accelerations of a device along three at least generally orthogonal axes during an inground operation that exposes the accelerometer arrangement to a mechanical shock and vibration environment, said accelerometer arrangement comprising: a first accelerometer package and a second accelerometer package, each of which includes one or more sensing axes such that the first and second accelerometer packages collectively provide a total of at least four sensing axes for sensing along the three orthogonal axes and at least one of the first accelerometer package and the second accelerometer package includes one sensing axis that is weaker than another sensing axis of that accelerometer package in being more susceptible to mechanical shock and vibration with the first accelerometer package and the second accelerometer package supported such that the weaker axis of one accelerometer package is redundant with respect to another sensing axis in the other accelerometer package; a processor that is configured to select a combination of three sensing axes outputs from the total number of sensing axes to determine the accelerations along said three orthogonal axes without using the weaker sensing axis for determining said accelerations.