LiDAR is the optical equivalent of radar. Whereas radar uses radio waves, LiDAR uses laser light for detection and ranging. The technology dates back to the early 1960s and was originally called Colidar (coherent light detection and ranging). More recently, LiDAR has found applications in consumer electronics, including range detection for autonomous vehicles, to allow […]
Optical filters in military technology play a crucial role in ensuring equipment can be used on the battlefield and in hostile environments under the widest possible range of conditions. From reducing sunlight glare in desert combat, to infrared filters for night-vision goggles, optical filters are at the heart of many pieces of life-and-death military hardware. […]
Envin Scientific gas analysers are calibrated prior to delivery and include features like freshness seals on their gas sensors to extend their storage life before use. However, it’s still important to maintain and test gas analysers. With that in mind, let’s take a look at how to test and calibrate gas analysers supplied by Envin […]
The hole in the ozone layer was one of the headline-grabbing climate emergencies of the late 20th century, first detected in 1979 and continuing until present day. In 1994, the lowest average ozone level of 92.3 Dobson units was reported, and the UN declared September 16th the International Day for the Preservation of the Ozone […]
Carbon monoxide alarms (commonly known as CO alarms) will continue to be compulsory for private landlords with the introduction of the Smoke and Carbon Monoxide Alarm (Amendment) Regulations 2022 on October 1st. The new legislation follows the Smoke and Carbon Monoxide Alarm (England) Regulations 2015, which required private landlords to install smoke alarms on every […]
Air pollution associated with climate change means ozone detection is increasingly important as a way to mitigate negative ozone health effects and damage to buildings. In the US, the National Center for Atmospheric Research in Boulder, Colorado, has already published research predicting that summertime ozone levels will increase by as much as 70% by 2050. […]
Acousto-Optic Tuneable Filters, or AOTFs, are devices used to filter light with the ability to control the filter via a radio frequency (RF) input. These handy optical filters have a wide range of applications and have seen growing demand in recent years – the future is bright for AOTFs. What is an acousto-optic filter? In […]
