We measure the amount of infrared radiation emitted from the road surface, perform signal processing, and accurately measure the road surface temperature.
The DST111 sensor can measure road surface temperature non-contactly. It measures the amount of infrared radiation emitted from the road surface, processes the signals, and accurately measures the road surface temperature. Even under environmental conditions where many commercially available infrared sensors show errors, reliable measurement values can be obtained. When the road surface temperature drops due to radiative cooling on clear nights, typical infrared sensors can experience errors of up to -3°C due to the influence of the road surface's emissivity, but the DST111 corrects this error through its unique design to display accurate data. The installation method for the DST111 is simple, requiring no cutting of grooves in the road or road closures. By using mobile communication devices, it is an ideal standalone sensor that can be used in remote locations or on bridges. This sensor is designed to be installed directly on existing structures such as columns along the roadside. It can also be combined with existing Vaisala Road Weather Stations RWS200 or older ROSA Road Weather Monitoring Stations. When combined with the DSC111 road surface sensor, it forms a versatile standalone weather station.
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basic information
【Features】 ○ Non-contact temperature measurement ○ Equipped with a unique function to correct errors caused by the road surface's emissivity, eliminating the need for emissivity adjustment ○ Easy installation and maintenance ○ Low maintenance costs ○ No mechanical moving parts ○ Accurate and stable measurements unaffected by traffic volume ○ High durability and all-weather type ○ Measures temperature and humidity ○ Can be easily combined with the Vaisala Road Weather Station RWS200 ○ Can also operate as a standalone device ● For more details, please contact us or refer to the catalog.
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Company information
Vaisala is a global leading company in the fields of meteorological observation and environmental/industrial measurement. Leveraging over 80 years of experience, we provide observations aimed at creating a better world. Vaisala is a trusted partner that can comprehensively offer innovative observation and measurement instruments and services to customers around the world. Our headquarters, Vaisala Oyj, is located in Helsinki, Finland, and we have over 1,900 employees worldwide, listed on Nasdaq Helsinki.