ELECTRODYNAMIC VIBRATION BED Russian patent published in 1997 - IPC

FIELD: test of magnetometric and radio electron equipment. SUBSTANCE: electrodynamic vibration exciter of vibration bed is embraced by multilayer magnetic screen. Vibration bed is fitted with vibration transmitting device manufactured in the form of tube of dielectric nonmagnetic material mounted vertically on table of vibration exciter, end of tube carries table for positioning of tested article. Height of tube should not exceed 2.3 m. Current stabilizer in circuit of power supply of magnetization coils of vibration exciter has stabilization factor not more than 10^-4 with magnetization current 1.5-3.0 A. Permanent magnetic induction at point of placement of tested article decreases to 4.10⁴ nTm and variable one - to 0.05 nTm. EFFECT: increased functional reliability and efficiency. 1 dwg