Abstract: A method and apparatus is provided for dynamic mechanical measurements of materials in which a plurality of coplanar coils are disposed transversely with respect to a magnetic flux field. The coils are rigidly mounted to a plate and arranged so as to eliminate inductive coupling between the coils. Alternating current is passed through some of the coils so as to vibrate or oscillate the plate because of the alternating force resulting from the interaction of the electrical current and the magnetic field. Other of the coils have an alternating motional electromotive force (voltage) generated in them because of their vibration. The mechanical impedance of the plate is determined from the vector ratio of the vibration forcing current to the velocity sensing voltage. When the plate is connected to the material to be tested in vibration, measurements of the vector ratio of electrical current to motional voltage then provide determinations of dynamic mechanical properties at vibration frequencies from 0.