guard shield

guard shield

[′gärd ‚shēld]
(electronics)
Internal floating shield that surrounds the entire input section of an amplifier; effective shielding is achieved only when the absolute potential of the guard is stabilized with respect to the incoming signal.
References in periodicals archive ?
The Staff Director of the National Guard distributed the certificates to the graduates and presented the National Guard Shield to the first position achiever.
The Staff Director presented Shaikh Al-Shammari with the National Guard Shield in recognition of his efforts.
Cascade Microtech's AttoGuard probers, with patented AttoGuard integrated guard shield, can test wafers at temperatures up to 350 C, with extremely low electrical noise.
SAFETY MEASURE: A plough guard shields a tram''s wheels to prevent deaths and injuries