Below are general answers on how to choose a polarimeter from the list of GAO Tek’s Polarimeters. To facilitate our customer’s selection of our products, we have further classified our polarimeters by their features analog, automatic, benchtop, digital, high accuracy, multichannel, and rugged. 

We have products in stock and can ship overnight to most places in the U.S. and Canada. 

If you have any questions about our products or want to place an order, our technical experts can help you.

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Understanding Polarimeter: 

  • The polarimeter typically consists of a light source that emits polarized light. Polarized light is light in which the vibrations occur in a single plane. 
  • Before entering the sample, the polarized light passes through a polarizer. This polarizer ensures that the light is polarized in a specific direction, usually vertically or horizontally. 
  • This is where the optically active substance, often a liquid, is placed. When polarized light passes through this substance, its plane of polarization can be rotated due to the interaction between the light and the molecules of the substance. 

Determine Your Requirements: Consider the types of optical analysis you’ll be conducting and the specific measurements you’ll need to make. This will help you determine the necessary features and capabilities of the polarimeter. 

Current Range: 

  • One of the most critical factors when choosing a polarimeter is its rotation angle range. GAO Tek’s polarimeters are available with various angle measurement ranges, allowing you to measure small to large rotation angles accurately. 
  • Ensure the polarimeter you choose has an angle range that covers the maximum rotation angle you expect to encounter in your work. 

Accuracy: Check the accuracy specifications of the polarimeter. Accuracy is crucial for obtaining reliable measurements of the angle of rotation. Look for polarimeters with high accuracy ratings, especially if you’re working on precise optical analysis. 

Resolution: 

  • Resolution refers to the smallest change in the measured rotation angle that the polarimeter can detect. Higher resolution allows for more precise measurements of small rotation angles. 
  • Consider the resolution required for your measurements and choose a GAO Tek polarimeter with adequate resolution for your needs. 

Additional Measurement Functions: 

  •  Determine whether you need additional measurement functions beyond rotation angle measurement. Many of our polarimeters offer capabilities such as wavelength measurement, concentration determination, and specific rotation calculation. 
  • Choose a polarimeter that includes the necessary functions for your specific optical analysis applications. 

Safety Features: Safety is paramount when working with optical instruments. Look for polarimeters with safety features such as overload protection, input warning indicators, and robust construction to ensure safe operation. 

Display and Interface: 

  • Consider the display type and size of the polarimeter. A clear, easy-to-read display is essential for accurate readings, especially in laboratory settings. 
  • Evaluate the user interface for ease of use and intuitive operation, including the placement and functionality of buttons and controls. 

Build Quality and Durability: 

  • Choose our polarimeter made from high-quality materials that can withstand the demands of regular use in laboratory environments. 
  • Look for features such as durable construction, stable alignment mechanisms, and precise optics for reliable performance over time. 

Budget: Determine your budget for purchasing a GAO Tek polarimeter. While it’s essential to invest in a quality instrument that meets your requirements, consider balancing features and capabilities with cost to find the best value for your investment. 

Brand Reputation and Support: Research reputable brands like GAO Tek for manufacturing high-quality polarimeters with excellent customer support and warranty policies. Reading reviews and seeking recommendations from professionals in your field can help guide your decision. 

Accessories and Extras: Consider any additional accessories or extras that may be included with our polarimeters, such as sample cells, calibration standards, or data analysis software. These can add value and convenience to your purchase, enhancing your overall experience with the instrument.Â