ADC	analog to digital converter
ADG	axial displacement signals generator
CJTB	combined journal-and-thrust bearing
g.c.	geometric center
LPRE	liquid-propellant rocket engine
MC	measuring circuit
MT	matching transformer
PC	personal computer
RPM	revolutions per minute
RPMS	RPM sensor
RC	radial clearance
RSG	rotational speed generator
SCECS	single-coil eddy current sensor
SCECSS	SCECS simulator
SE	sensitive elements
TPU	turbo-pump unit