Hangzhou Freqcontrol Electronic Technology Ltd.
Hangzhou Freqcontrol Electronic Technology Ltd. We Grow Crystal. We Fabricate Wafer. We are Piezoelectric Specialist.
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X-cut Y-cut Crystal Quartz Ring Double Side Lapped for Sensing Technology
Piezo Quartz exhibits the best long term stability of any piezoelectric sensing material. Quartz exhibits no pyro-electric output and has a small stable thermal coefficient. The low capacitance of quartz gives it a high voltage output (V=Q/C).
BonTek Optoelectronics has enormous experience in Crystal Quartz Ring fabrication. We make 10 thounds of quartz rings and LiNbO3 rings each year. They are mostly used as the key element in pressure or force sensors. We can customize the outter dia., inner dia., surface finish, and cut angle for you.
| Material | Single Crystal Quartz Blanks (Piezo / Optical grade) |
| Synthetic Q-Value | Min 1.8×10^6, 2.4×10^6, 3.0×10^6 (IEC standards) |
| Etch Channel Density (ECD) | 2/cm2,10/ cm2,30/ cm2,100/ cm2,300/cm2；Swept Quartz (IEC standards) |
| Inclusions Density | Ia,Ib,I, II,III Grades (IEC standards) |
| Cutting Angle | X / Y / Z / AT / BT / ST etc. |
| Outter Diameter | 3mm ~ 200mm |
| Inner Diameter | 1.5mm ~ 100mm |
| Thickness | 0.1mm ~ 5mm |
| Orientation Flat | As required, or Pencil marked |
| Surface Finish | Double side lapped, Double side polished |
| Polished side Ra | <1nm or specific per requested |
| Back Side Criteria | General is 0.2-0.5µm or as customized |
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