Optional Modules
LVA-Load Vector Analysis
LVA Module measures and displays the resultant force magnitude and its vector direction including in-plane loading and its vector pierce point position
Electric Conductivity Free-length Measurement
The electric conductivity freelength measurement module uses electric conductivity to measure the springs freelength
Standard testers use an algorithm to detect a load (force) change relative to the testers background noise levels. This method is relatively slow and is less accurate for springs with a low spring rate. magnetism in the spring or the testers plattens lead to errors using this conventional method
In order to improve the accuracy of this method, the free length check is performed at slower tester crosshead speeds resulting in longer test times
The electric conductivity free length method only requires a spring that conducts a current, and soon as this current is detected, the tester records the freelength. This method can be performed a lot faster than the standard force methods used on most testers
Buckling Pin Set
Long Slender Springs buckle and jump out of the tester plattens during a compression test. For these springs, the spring has to have a rod placed through its inner diameter to prevent the spring buckling. This rod must be thread through a hole in the spring testers upper platen during the compression test. The hole diameter in the spring testers upper platen must be smaller than the springs outer diameter but larger than the rod diameter.
This module consists of 4 rod sizes (different rod diameters), each rod with a matching sleeve. The relevant sleeve is attached to the tester upper platen allowing for the rod to be passed through its center hole
