B+S Abbe 5 Abbe refractometer

The name Abbe refractometer comes from the 19th-century physicist Ernst Abbe (1840-1905). Abbe designed an instrument for measuring light dispersion, which became the predecessor of the so-called "Abbe refractometer".

Bellingham+Stanley offers a variety of Abbe refractometers, which can be selected based on measurement requirements and budget availability.

Abbe 5 provides direct refractive index and Brix readings at a low price, making it ideal for general measurements in academia and industry.

The high-precision, multi wavelength versions (Abbe 60/LR and Abbe 60/ED) include a refractive index range from 1.20 to 1.74 RI and require the use of a 'spectral lamp'. These instruments can also be used to measure the dispersion of visible spectra and provide results accurate to five decimal places - the highest precision available for this instrument. Abbe 60ED meets the testing and measurement requirements of ASTM 1218.

All Abbe refractometers are particularly suitable for measuring solids and semi solids, such as thin film polymers, rubber, glass and optical fibers, as well as liquid samples, and have temperature control devices connected through a water bath.

The temperature measurement is completed by an integrated sensor and displayed digitally (LCD). The 'free software' for converting results to other ranges and calculating dispersion can be obtained from this website.