The measuring device can be precisely adjusted at a standard acceleration of 10 m/s² (load mass from 0 grams to 70 grams).
The "Vibration Calibration Exciter Model 4294" is equipped with a built-in electromagnetic exciter and operates at a frequency of 159.15 Hz (1000 rad s-1) using a quartz oscillator. A small acceleration pickup is mounted on the bottom surface of the vibration plane, and feedback control is employed to maintain a constant and precise vibration level, regardless of the mass of the transducer being calibrated (up to 70 grams for Model 4294 and up to 200 grams for Model 4294-002). If a transducer exceeding the specified mass is attached to the vibration table, the power supply of the calibrator will automatically be cut off to avoid overload. The usage is very simple. First, attach the target transducer to the vibration plane of the calibrator using a steel stud (YQ 2963) with a 10-32 UNF thread. Additionally, by using the included 10-gram mounting adapter (DB 2996), transducers manufactured with a mounting screw diameter of 3 mm can be easily attached, or they can be mounted with the included magnet UA 0642. This mounting adapter is also convenient for securing transducers with bead wax or instant adhesive.
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basic information
【Features】 ○ Compact, lightweight, and battery-operated ○ Protective leather case for shock and vibration ○ Designed for use in harsh everyday environments ○ Calibration of acceleration, velocity, and displacement ○ High-precision, crystal-controlled servo operation at 159.15 Hz (1000 rad s-1) ○ Drop and environmental testing in accordance with IEC 60068 ○ Splash-proof structure compliant with IP54 (IEC 60529) ● For more details, please contact us or download the catalog.
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Applications/Examples of results
【Applications】 ○ Precision field calibration of vibration transducers ○ Short-term calibration and checks ○ Quick and easy field calibration of vibration measurement and recording systems ● For more details, please contact us or download the catalog.
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Company information
Bruel & Kjaer (Spectris Corporation, HBK Division) will reflect the diligence of Denmark and the innovation of Japan in our products. We aim to bring the experience and wisdom of our Danish headquarters, which has been dedicated to "acoustics and vibration for 75 years," to Japan through Bruel & Kjaer Japan. Additionally, we want to showcase Japan's delicate and advanced technology, which is at a world-class level, to the world through the Bruel & Kjaer Group's network.
