Quartz Hemispherical Resonator For Hemispherical Resonator Gyroscope

The hemispherical resonator gyroscope is composed of hemispherical resonator, excitation cover and sensitive basement. All of them are made of fused quartz material with high quality factor and metallized on the surface. As the sensitive part of the gyro, the hemispherical resonator is the core of the hemispherical resonator gyro. Its machining surface accuracy, position accuracy and surface quality are the most key factors affecting the accuracy and performance of the hemispherical resonator gyro. The higher the machining accuracy of hemispherical resonator, the closer it is to the ideal resonator state, and the higher the gyro accuracy. The hemispherical resonator is made of fused quartz and is a hemispherical thin-walled shell with a central support rod, with a diameter of φ 15 ~ 60mm, wall thickness is generally 0.3-1.1mm, surface accuracy < 0.5um, inner and outer ball concentricity < 0.5um, surface roughness Ra < 0.025um, and quality factor Q value is higher than 107. The special-shaped spherical hemispherical resonator requires high surface accuracy and concentricity of inner and outer spheres, and the accuracy reaches sub micron level. Due to the hard and brittle quartz glass material, easy edge collapse, crack and embrittlement in processing, and special processing technology, the conventional processing method of spherical optical elements is not applicable, the qualified rate is very low, and the processing is very difficult.

After years of technical accumulation, we can successfully produce this part with high accuracy.

Rich experience in quartz glass industry

We have more than 25 years industry experience in quartz glass processing. We specialize in quartz glass capillary tubes and rods, quartz glass substrates, CNC machined quartz, and quartz instruments etc. According to product application, we have good grasp of material properties and adapt the proper material into product application.

Strong technical force in processing and application

Beijing Zhong Cheng Quartz Glass Co., Ltd(ZCQ) is a high-tech manufacturer specializing in the production and customization of quartz glass products and optical glass products. We has excellent technical strength, strong innovation ability and stable product quality. Our processing method is rich, drawing of glass, cold and thermal processing, micro size machining, high precision and difficulty process, combination of multiple processing methods, which guarantee that our product is excellent in all aspects.

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We are well known in quartz glass industry. Quality is the lifeline of enterprise survival and development. Integrity is the source of enterprise reputation, the foundation of standing and the foundation of development. Through unremitting efforts and continuous improvement, we have created a good manufacturing platform of optical glass for customers.