Polarimeters For Sale

Polarimeters — effective measurement of the angle of rotation of light

Polarimetry is a technique for studying optically active substances and measuring their concentration. Polarimeters are specialized laboratory instruments that are essential for determining indicators and measuring the degree of polarization and optical activity of transparent, homogeneous media, solutions, and liquids.

Features of polarimeter operation

Polarimeters, regardless of the model or price, consist of the following main elements: a light source, a polaroid, a sample, and a detector. The device operates based on measuring the change in polarization of light as it passes through the sample using polaroids. The fundamental principles of the equipment's structure include:

1. Lasers, lamps with polarizing filters are more often used as a light source.

2. Polaroids are optical filters that allow light to pass through in a specific plane. A polaroid analyzer and a polaroid source are commonly used.

3. The sample causes a change in the plane of polarization of the light.

4. A detector measures the intensity of the light, represented by a photodiode, photomultiplier tube, or other measurement device.

The polarimeter determines the angle of rotation of the plane-polarized light beam. When the optical axis of the light receiver is perpendicular, the signal intensity of the detector is zero. This axis position is achieved by rotating the analyzer, which determines the change in the plane of the plane-polarized light beam.

Selecting a polarimeter

Before buying polarimeters and analyzing their cost, it is important to consider their intended use and technical characteristics. First and foremost, it is essential to take into account:

• type of measurement: single-channel, multi-channel;

• wavelength range: narrow, broadband;

• accuracy and resolution;

• interface;

• functionality;

• auxiliary features.

Additional features provide flexibility and ease of use for the equipment. Information storage and data export facilitate documentation of results and subsequent calculations. The control of most modern polarimeter models is represented by touch screens, buttons, and software for setting up operations and processing results.

Some devices are equipped with a Peltier element, allowing for connection to a water bath or an external thermostat. Visualization and data analysis features help to display changes in polarization visually and evaluate the results obtained.

Polarimeters: price — quality

Bimedis marketplace is designed for buying, selling, and exchanging equipment, offering favorable prices for polarimeters. Trusted vendors provide a wide range of devices from leading brands, along with photos and detailed information about technical specifications. Each customer can easily find the right device to complement their laboratory equipment. Experienced managers are available to answer questions and provide professional assistance.