Noncontact excitation of quartz crystal resonator chips

摘要: The use of an acoustic wave device as a chemical sensing element is often limited by contact with wires and supports the need to control its fluidic environment. This letter describes validation versatile noncontact configuration that makes spiral coil antenna electromagnetically excite miniature piezoelectric chips. Experimental evidence provided demonstrate AT cut quartz crystal resonator can be cleaved into chips excited via coupling electric Y axis crystal. An unpredicted result was superior coherence at frequencies determined their local thickness.