B&K 4808 小型標準振動臺
名稱：振動測試儀
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簡介：BK 4808 小型標準振動臺 Permanent Magnetic Vibration Exciter Type 4808 is a high-quality, compact machine with a permanent magne...
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B&K 4808 小型標準振動臺
Permanent Magnetic Vibration Exciter Type 4808 is a high-quality, compact machine with a permanent magnetic field. It is designed for long, trouble-free operation, and has a force rating of 112 newton (25 lbf) enabling relatively heavy loads to be excited to high g levels.
B&K用途
Vibration testing
Mechanical impedance measurements
Educational demonstrations
Structural response testing
Vibration transducer calibration
B&K特點
Force rating 112N (25 lbf) sine peak (187 N (42 lbf) with cooling)
Frequency range 5Hz to 10 kHz
First axial resonance 10 kHz
Maximum bare table acceleration 700 m/s2 (71 g)
Rugged construction
Low cross motion and low distortion
Lapped and hardened surface
Replaceable inserts for moving element protection
Robust rectlinear guidance system
Highly damped axial, transverse and flexural resonances
Continuous 12.7 mm (0.5 in) peak-to-peak displacement with overtravel stops
Interconnecting cable with two high-quality, 4-pin Neutrik® Speakon® connectors
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Type 4808 will normally be driven by Power Amplifier Type 2719 rated at 180VA, but can also be driven by any amplifier up to a maximum input current of 15A RMS without assisted cooling.
The moving element is supported by a robust rectilinear guidance system consisting of grouped radial and transverse flexures in a unique construction. The flexures are made from a bonded sandwich of spring steel and a damping elastomer, providing a clean acceleration waveform with low cross motion and low distortion characteristics.
Permanent Magnetic Vibration Exciter Type 4808 is a high-quality, compact machine with a permanent magnetic field. It is designed for long, trouble-free operation, and has a force rating of 112 newton (25 lbf) enabling relatively heavy loads to be excited to high g levels.
B&K用途
Vibration testing
Mechanical impedance measurements
Educational demonstrations
Structural response testing
Vibration transducer calibration
B&K特點
Force rating 112N (25 lbf) sine peak (187 N (42 lbf) with cooling)
Frequency range 5Hz to 10 kHz
First axial resonance 10 kHz
Maximum bare table acceleration 700 m/s2 (71 g)
Rugged construction
Low cross motion and low distortion
Lapped and hardened surface
Replaceable inserts for moving element protection
Robust rectlinear guidance system
Highly damped axial, transverse and flexural resonances
Continuous 12.7 mm (0.5 in) peak-to-peak displacement with overtravel stops
Interconnecting cable with two high-quality, 4-pin Neutrik® Speakon® connectors
--------------------------------------------------------------------------------
Type 4808 will normally be driven by Power Amplifier Type 2719 rated at 180VA, but can also be driven by any amplifier up to a maximum input current of 15A RMS without assisted cooling.
The moving element is supported by a robust rectilinear guidance system consisting of grouped radial and transverse flexures in a unique construction. The flexures are made from a bonded sandwich of spring steel and a damping elastomer, providing a clean acceleration waveform with low cross motion and low distortion characteristics.
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