M.A.E. Apparecchiature Elettroniche srl GV45 地震仪器

Vertical geophone 4,5 Htz with 1 m lead cable, double clip or split spring (single clamp) connector available upon request.","- TECHNICAL SPECIFICATIONS -","Frequency","Natural Frequency (fn): 4.5 Hz Tolerance: +\/- 0.5 Hz Max. tilt angle for specified fn: 0° Typical Spurious frequency: >140 Hz","Distortion","Distortion with 0.7 in\/s p.p. coil to case velocity: <0.3% Distortion measurement frequency: 12Hz Max. tilt angle for distortion specification: 0°","Coil Resistance","Standard: 375 ohm Tolerance: +\/- 5%","Sensitivity","Sensitivity: 28.8 V\/m\/s Tolerance: +\/- 5% RtBcFn (Ohm Hz): 6000","Physical Characteristics","Moving mass: 11.1 g Maximum coil excursion p.p.: 4.0 mm Diameter: 25.4 mm Height: 36 mm Weight: 81 g Operating temperature range: -40°C to + 100°C