Mechanical Engineer/CAD Designer
 |  |
|---|---|
 |  |
 |
Click left and right to scoll through images. Click on image to enlarge
Load Cell Calibration System
This fixture is used to calibrate vibrational testing equipment. The sturdy aluminum extrusion frame is robust and configurable to support a variety of components and masses. A dual system of low friction linear bearings and tracks allows free, one DOF motion for the sensors to be tested.
​
Load Cell:
With the load cell affixed to a mass of known inertia, a small hammer or impact device will deliver a calculated load that can be compared to the output signal of the cell and determine the efficiency.
​
Impact hammer:
The impact hammer is mounted into the low friction swing clamp and drawn back by a small winch to the desired angle. Using simple compound pendulum equations, the theoretical impact is calculated and compared to the output signal of the impact hammer.
​
Shaker:
The design can be configured to fit a variety of sizes and shapes of shaker. The most common, the canister shaker, is mounted to the frame and the shaker arm is connected to the mass. Springs attached to the sides of the linear bearing allow desired preload for measurement. Since the frame is of aluminum construction, this design supports calibration of electromagnet and permanent magnet shakers.