5-200mm precision measuring electrode quartz rod is a high-precision measuring element made of high-purity fused silica (SiO ₂), which has excellent high temperature resistance, low coefficient of thermal expansion, high insulation and chemical stability. This product is widely used in precision measurement, semiconductor manufacturing, optical testing, laboratory research and other fields, and can meet the high-precision measurement requirements in harsh environments.

Frequently Asked Questions (FAQ)

Q: What are the main applications for 5–200 mm precision measurement quartz rods?

A: This product is widely used for temperature and pressure measurement in semiconductor diffusion and oxidation processes, liquid level detection during photovoltaic crystal growth, online analytical instruments in the chemical industry, and precision physics experiments at universities and research institutions.

Q: What specifications can your company offer for customization?

A: We support comprehensive customization services. In addition to round rods with diameters ranging from 5 to 200 mm, we can also customize square and irregular cross-sections. Regarding length, end chamfering, surface polishing precision (down to Ra 0.01 μm or less), and secondary processing such as drilling and slotting, we can produce each item on a one-to-one basis according to customer drawings or samples.

Q: How do quartz rods ensure measurement accuracy at high temperatures?

A: This is due to the low coefficient of thermal expansion inherent to quartz (approximately 0.55 × 10⁻⁶/°C). This means that even under temperature differences of several hundred degrees Celsius, the dimensional changes in quartz rods are minimal. As supports and positioning references for electrodes, they do not introduce additional measurement errors due to thermal expansion and contraction.  

Product Features

-High precision dimensions: diameter range 5-200mm, length customizable, tolerance controlled within ± 0.01mm, ensuring measurement stability.  

-Excellent thermal stability: The coefficient of thermal expansion is extremely low (about 0.54 × 10 ⁻⁶/℃), making it suitable for precise measurement in high-temperature environments.  

-High chemical inertness: resistant to acid and alkali corrosion, suitable for strong acid, strong alkali, and organic solvent environments.  

-High insulation: high resistivity, low dielectric loss, suitable for high voltage and high frequency environments.  

-High optical transmittance: It has excellent optical performance in both ultraviolet and infrared bands, suitable for optical sensing and laser measurement.  

Application Fields

1. Semiconductor manufacturing and testing

-Used for wafer inspection, alignment of lithography machines, calibration of probe stations, etc., to ensure high precision in semiconductor manufacturing processes.  

-As an electrode or insulating support, it is suitable for processes such as plasma etching and CVD (chemical vapor deposition).  

2. Precision measurement and metrology

-As a high-precision measuring head, probe, or reference rod, it is used in equipment such as coordinate measuring machines (CMM) and laser interferometers.  

-Provide a stable reference benchmark in nanoscale displacement measurement.  

3. Optics and Laser Technology

-Used for laser resonators, optical adjustment frames, and beam collimation systems to ensure optical path stability.  

-As a UV/IR optical window or sensor protective cover.  

4. Laboratory and research equipment

-Used as a support, insulation, or measuring element in vacuum environments, high-temperature experiments, or strong corrosive conditions.  

-Suitable for fields such as high-energy physics, materials science, chemical analysis, etc.  

5. Industrial automation and sensors

-Used for high-precision displacement sensors, capacitance micrometers, vibration detection systems, etc.  

-Provide long-term stable measurement performance in harsh industrial environments.  

Customized service

We can provide personalized customized solutions according to customer needs, including but not limited to:

-Size customization: diameter (5-200mm), length (1mm-1000mm), end face treatment (polishing, coating, chamfering, etc.).  

-Material optimization: Ultra high purity quartz (low OH content), doped quartz (such as UV or IR enhanced).  

-Special processing: precision drilling, threading, and irregular structures (such as step shafts, tapered rods, etc.).  

-Surface treatment: Anti reflective coating (AR), metalized coating (such as gold, silver, aluminum, etc.) to meet conductivity requirements.  

What problems can we solve?  

1. Measurement drift in high-temperature environments: Traditional metal materials are prone to deformation when heated, while the low thermal expansion coefficient of quartz rods ensures measurement stability.  

2. Shortened lifespan caused by chemical corrosion: Quartz is resistant to acid and alkali, suitable for corrosive environments, and extends the service life of equipment.  

3. Benchmark requirement for high-precision measurement: In nanoscale measurements, the high dimensional stability of quartz rods can reduce errors.  

4. Insulation and dielectric requirements: Suitable for high voltage and high frequency applications to avoid leakage or signal interference.  

5. Stability requirements for optical systems: UV/infrared optical applications require materials with low absorption and high transmittance, and quartz rods are an ideal choice.  

Why choose our quartz rod?  

-Strict quality control: Each batch of products undergoes precise testing to ensure that the size, purity, and optical performance meet the standards.  

-Rich industry experience: serving high-end fields such as semiconductors, optics, and metrology, providing professional solutions.  

-Quick response to customized needs: from design to delivery, full technical support to meet special application scenarios.  

If you need further information or obtain samples, please contact our technical team and we will provide you with the optimal measurement solution!

Luverre Quartz manufactures and sells a wide range of high quality quartz glass, including quartz tubes, quartz plates, quartz rods, quartz windows, quartz crucibles, quartz boats, quartz flanges, quartz beakers, quartz glass instruments, and more. We can meet all kinds of customized requirements for quartz glass products.