Highly sensitive accelerometer

(57) The high sensitivity accelerometer for determining the acceleration of a summary structure contains the principal part hung by the support component in the housing. This support component has twisted by turns the circumference of the axis currently fixed and the principal part of push pull arrangement. At least one copy of one support component constitutes the converter which can measure displacement of the principal part in a housing. With the enforcement form of invention, in order to use an interference detection processing unit, the optical fiber coil is used as a support component. Such two or more interferometers based on an accelerometer are multiplexed using WDM or the same method.