Universiteit Twente

Wheelright Limited

Lightz Limited

Willem Paul Beeker

William James Bradley

Alexander Paul Codd

Johannes Wilhelmus Eikenbroek

Paul Klatser

Paulus Wilhelmus Leonardus Van Dijk

Chris Gerardus Hermanus Roeloffzen

Paul Michael Taylor

Leimeng Zhuang

Ben James Crundwell

Michael Andrew Beadman

Guy Margetson

A system for measuring the depth of tread of a tyre () on a wheel () of a vehicle () whilst the wheel is rotating and moving along the ground. A camera () captures images whilst the tyre rotates for at least the major part of its circumference. Light sources (Lto L) are spaced longitudinally and are directed at an acute angle to the path of the tyre, to illuminate the tyre whilst images are captured. The images are analysed by data processing apparatus () and the tread depth is determined from the length of shadows () in the gaps () between tread blocks (). The light sources are activated and de-activated sequentially in accordance with signals from longitudinally spaced sensors (Sto S) which detect the presence of the tyre, so that when an image is captured of a portion of the tyre tread, only one light source is activated to illuminate that portion of the tyre tread.

Method and device for tyre condition analysis

A phased-array antenna that includes a photonic beamformer is disclosed. In some embodiments, a front stage of electrical-domain processing applies a 16-to-1 signal-combination ratio, a single stage of photonic beamforming applies a 4-to-1 signal-combination ratio, and a passive, electrical-domain, signal combiner applies a 32-to-1 signal-combination ratio.

Electronically-steered Ku-band phased array antenna comprising an integrated photonic beamformer

Growing community of inventors

Cambridge, United Kingdom

Willem Paul Beeker