System for dampening pulsations or oscillations in a force-balance instrument

摘要

A force-balance pressure measuring instrument incorporates a fluid pressure couple. The couple constructively includes a fulcrumed beam. The primary element is connected to the force-balance beam through a proportional band adjustment having a leaf spring which is changed in effective length. At certain settings of the leaf spring in the proportional band adjustment, oscillations, or pulsations, of the fulcrumed beam are generated. A compensation beam is pivoted on the fulcrumed beam to respond to the pulsations or oscillations of the fulcrumed beam and absorb energy to reduce pulsations or oscillations.