Test and measurement accelerometers are generally characterized by smaller size than industrial units and typically use a 10-32 coaxial connector to connect to measurement equipment. The PA10A and WST7B 3 operate with Wilcoxon’s piezoelectric and electromagnetic shakers and matching networks. At very high frequencies, lower output voltages are used to better match the reactive load. Matching networks provide the interface between power amplifiers and piezoelectric shakers, providing voltage increases to allow the shaker to be driven at its full voltage level. Electromagnetic shaker operation manual.F10/Z820WA electromagnetic shaker system.F4/Z820WA electromagnetic shaker system.F3/Z602WA electromagnetic shaker system.Can be combined with piezoelectric shakers for wider operational bandwidth.Integral impedance heads measure acceleration and force. Wilcoxon’s electromagnetic shaker systems include a built-in impedance head. F4/F7 electromagnetic/piezoelectric combination shaker systemĮlectromagnetic shakers excite primarily at low frequencies and can be used to measure components such as the first bending mode of airframes or ship hulls.Īn impedance head is a transducer consisting of two sensing elements: a force gage, which references the force acting between the shaker input connection and the test item connection, while the accelerometer senses the acceleration on the shaker face.No external support or critical shaft alignment problems.Stud-mounted directly to structures in any position.Sonic and ultrasonic structural excitation.These lightweight, portable shakers generate large dynamic forces at very high frequencies for reliable sonic and ultrasonic structural excitation. View the complete shaker brochure » Piezoelectric shakers By simulating such dynamic forces and natural frequencies, shakers can be used along with accelerometers and other vibration monitoring devices to reveal cracks, defects, weaknesses or other abnormalities, allowing engineers and test technicians to better predict structural behavior over time. Piezoelectric and electromagnetic shakers are used to provide reliable structural excitation of a test article within a controlled, localized environment.
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