![]() (Not all patterns are available in all electrode materials.) Leads Many special patterns are available, and custom masks can be made to your specifications. ![]() Also offered are electroless nickel, or electroless nickel plus electroless gold, and fired palladium/silver, silver, gold and platinum/gold. Standard electrodes are vacuum-deposited chrome/gold, or just chrome. These thin (≈3500 Å) electrodes maintain the flatness, parallelism and surface quality of the crystals and do not overload thin, high frequency crystals. Vacuum-deposited electrodes enable us to achieve optimum frequency match in a variety of patterns. Some crystals can be made to very specific degrees of flatness and parallelism. We do not quote specific numbers of flatness and parallelism, but we guarantee that the crystals will resonate at the 3rd, 5th and 7th overtones. The flatness and parallelism will vary with the material and especially the thickness. Note: Overtone polish is available on all our materials. Two surface finishes are standard: 3 micron fine lapped for fundamental operation, and our proprietary chemical polish for overtone operation. Rectangular or square crystals can be made in similar sizes. SizesĬrystals as large as 4" X 8" at 1 MHz in quartz, 6" in diameter in ceramics, and as small as 0.020" in diameter in both quartz and ceramics are available. We also produce cones, tubes, cylinders, spherical and annular configurations. We routinely produce round, square, rectangular, triangular and wedged pieces. High quality lapping techniques and chemically applied overtone polish provide crystal quartz, fused silica and alumina components with minimal sub-surface damage. The skills necessary to produce our transducer crystals are readily applied to the production of related acoustic items, such as wear plates and buffer rods. ![]() Property analysis of solids, liquids and gases. ![]() Medical diagnostic and therapeutic applications.Boston Piezo-Optics specializes in the supply of custom and OEM specified piezoelectric transducer crystals and maintains an inventory of quartz, many of the popular piezoceramics, lithium niobate, tourmaline, and other special piezoelectric materials from which we fabricate crystals to meet your specific needs.Ĭrystals are available to generate or detect compressional, shear, torsional, length extensional or flexural modes of vibration. ![]()
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