FIRE stands for Fully Instrumented Ring Expansion; it combines up to six channels of velocimetry with the ability to precisely measure current and voltage from the power supply. This is compatible with both Electromagnetic Actuators as well as Exploding Wire Actuators.
Limitations of FIRE Systems
There are a few limitations, such as twinning occuring, and it cannot be performed beyond strain rates of about 10^5 s^-1. The only other limitations are the capabilities of the instrumentation (like a PDV) that is being used.
The FIRE system can improve the hardness of metals, as well as expanding them (as shown below).