Contact-Free Thickness Measurement Of Container Glass

Contact-free thickness measurement is already established in many container glass production plants. Precitec's new CHRocodile M4 sensor boasts a high measuring rate, a small compact size and a modular design. Optical, capacitive and tactile measuring methods are possible for in-line thickness measurement. However, there is a risk of inaccurate measurements when capacitive measuring systems are used on uneven surfaces, while the use of probes in the vicinity of stampings is problematical. Optical methods avoid these problems and achieve a high degree of precision and measuring ability. In this article the author explains how contact-free thickness measurement is ideally suited to the in-line inspection of glass in all colours.