G01P 2015/0848

Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces {using solid seismic masses} with conversion into electric or magnetic values {being provided with a particular type of spring-mass-system for defining the displacement of a seismic mass due to an external acceleration using a plurality of mechanically coupled spring-mass systems, the sensitive direction of each system being different}