Vibration isolator platform with electronic acceleration compensation

Abstract

A system is provided for providing vibration isolation and acceleration compensation for a device such as a vibration-sensitive oscillator or sensor. The system has an assembly that moves or vibrates relative to an external component. The assembly includes a plurality of components mounted to either side of a PCB. One or more accelerometers are configured to detect acceleration of the PCB in at least one of an X-axis direction, a Y-axis direction, and a Z-axis direction. The system includes plurality of isolators coupled to the assembly and configured to isolate or dampen vibrations that would otherwise transfer to the assembly from an underlying component to which the assembly is configured to attach to. In certain embodiments, the isolators are located between the assembly and the underlying component within vertical confines of an exterior perimeter of the PCB.

1 . A system for vibration isolation and acceleration compensation of a device, the system comprising:
 an assembly including:
 a printed circuit board (PCB) having an underside and an upper side, 
 a plurality of components mounted to either the underside or the upper side of the PCB, the plurality of components including:
 a device, and 
 one or more accelerometers mounted to the PCB outside of the package, the one or more accelerometers configured to detect acceleration of the PCB in at least one of an X-axis direction, a Y-axis direction, and a Z-axis direction; 
 
 wherein the assembly has an outer perimeter, and a tallest one of the components extends from one of the underside and the upper side; and 
   a plurality of isolators coupled to the assembly and configured to isolate or dampen vibrations that would otherwise transfer to the assembly from an underlying component to which the assembly is configured to attach to, wherein the isolators are located between the assembly and the underlying component within confines of an exterior perimeter of the PCB, and wherein the isolators are coupled to the same side of the PCB as the tallest one of the components.   
     
     
         2 . The system of  claim 1 , wherein each of the isolators defines a center point, and the assembly includes a center of mass that is horizontally aligned with the center points. 
     
     
         3 . The system of  claim 2 , wherein the assembly includes additional weights to adjust a location of the center of mass of the assembly to be in horizontal alignment with the center points of the isolators. 
     
     
         4 . The system of  claim 1 , wherein the assembly includes a center of mass, and wherein the isolators are arranged such that a center of rotation of each isolator is horizontally aligned with the center of mass of the assembly. 
     
     
         5 . The system of  claim 4 , further comprising a plurality of spacers, each spacer coupled between the PCB and a respective one of the isolators to adjust a location of the center of rotation of the isolators to be in alignment with the center of mass of the assembly. 
     
     
         6 . The system of  claim 4 , wherein the isolators are located equidistant from the center of mass of the assembly. 
     
     
         7 . The system of  claim 1 , wherein the plurality of components includes a package that houses the device, wherein the package is the tallest one of the components. 
     
     
         8 . The system of  claim 1 , wherein the one or more accelerometers includes a single three-axis accelerometer configured to detect acceleration of the PCB in the X-axis direction, the Y-axis direction, and the Z-axis direction.