Ulis achieves four-fold speed increase for bolometer

Share this on social media:

Ulis, a manufacturer of thermal image sensors, has announced a response time for its latest bolometer that is four times faster than standard bolometers. The company says it has achieved the increase in speed without compromising sensitivity.

The bolometer opens up the possibility to image fast moving objects without motion blur. According to Ulis, its new pixel technology, in conjunction with the bolometer’s comparably lower price, make it ideal for inclusion in machine vision cameras, where high frame rates for in-line quality inspection are required but the cost of adopting thermal imaging had previously been prohibitive. One example is monitoring glass manufacturing lines.

The sensor will also have applications in defence, such as in missile warning systems. Ulis, which is part of Sofradir and located in Veurey-Voroize, near Grenoble, France, will present the sensor at the SPIE Defence and Commercial Sensing show in Orlando, USA from 15 to 19 April.

Ulis says the new technology will significantly raise the overall factor of merit (FoM) of bolometers – the new pixel technology achieves an FoM of 125 to 150mK.ms, a four-fold improvement compared to standard bolometers.

FoM is a relative measure of thermal sensor sensitivity against response rate, and is a key parameter camera makers use to compare the performance of thermal sensors.

‘Ulis is thrilled with the outstanding results we have achieved in improving both the response time and sensitivity of the bolometer,’ said Sébastien Tinnes, marketing team leader at Ulis. ‘We feel camera makers will benefit tremendously from thermal image sensors, which, when used in conjunction with visible or SWIR cameras, can provide valuable additional information on product quality.’

The company presented its results in a technical paper entitled: ‘Ulis bolometer for fast imaging applications sets new response time record’ at Opto2018 in Paris.

Company: 

Related news

Recent News

14 February 2019

Machine vision camera maker Imago Technologies has built an industrial camera based on a vision sensor from Prophesee that operates along similar principals to human vision, rather than capturing frames like a standard CMOS sensor

14 February 2019

The award honours the outstanding work of a student or young professional in the field of machine vision or computer vision

14 February 2019

Endeavor Robotic Holdings builds unmanned ground vehicles, while Aeryon Labs develops aerial systems

30 January 2019

IDS plans to create around 60 new jobs in 2019, opening a new innovation and tech centre in the second quarter of the year