Pressure and Humidity Measurement on NASA’s Perseverance Rover

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International collaboration takes Vaisala and the Finnish Meteorological Institute (FMI) to Mars onboard NASA’s Mars 2020 Perseverance rover

Space-proof technology from Vaisala
Space-proof technology from Vaisala

The rover is scheduled to launch on July 30, 2020. Vaisala’s sensor technology combined with FMI’s measurement instrumentation will be used to obtain accurate and reliable pressure and humidity data from the surface of the red planet. The Finnish Meteorological Institute (FMI) is among the scientific partners providing measurement equipment for the new Perseverance rover, expected to launch in July and land on Mars in February 2021. The pressure and humidity measurement devices developed by the FMI are based on Vaisala's world known sensor technology and are similar but more advanced to the ones sent to Mars on the first Curiosity rover in 2012.  

The new mission equipment complements the Curiosity rover. While working on Mars, the Curiosity and Perseverance rovers will form a small-scale observation network. The network is only the first step, anticipating the extensive observation network planned on Mars in the future.

International and scientific collaboration aims to gather knowledge of the Martian atmosphere and other environmental conditions 

The Mars 2020 mission is part of NASA’s Mars Exploration Program. In order to obtain data from the surface from the Red Planet, NASA selected trusted partners to provide measurement instruments for installation on the Mars rover. A Spanish-led European consortium provides the rover with Mars Environmental Dynamics Analyzer (MEDA); a set of sensors that provides measurements of temperature, wind speed and direction, pressure, relative humidity, and the amount and size of dust particles. 

As part of the consortium, FMI delivers instrumentation to MEDA for humidity and pressure measurements based on Vaisala’s top quality sensors. “Mars, as well as Venus, the other sister planet of Earth, is a particularly important area of atmospheric investigations due to its similarities to Earth. Studying Mars helps us also better understand the behavior of Earth’s atmosphere”, comments Maria Genzer, Head of Planetary Research and Space Technology group at FMI.

The harsh and demanding conditions of Mars require the most reliable sensor technology that provides accurate and reliable data without maintenance or repair.
"We are honored that Vaisala’s core sensor technologies have been selected to provide accurate and reliable measurement data on Mars. In line with our mission to enable observations for a better world, we are excited to be part of this collaboration. Hopefully the measurement technology will provide tools for finding answers to the most pressing challenges of our time, such as climate change,” says Liisa Åström, Vice President, Products and Systems of Vaisala.

Same technology, different planet – utilizing Vaisala core technologies for accuracy and long-term stability

In the extreme conditions of the Martian atmosphere, NASA will be able to obtain accurate readings of pressure and humidity levels with Vaisala’s HUMICAP® and BAROCAP® sensors. The sensors' long-term stability and accuracy, as well as their ability to tolerate dust, chemicals, and harsh environmental conditions, make them suitable for very demanding measurement needs, also in space. The same technology is used in numerous industrial and environmental applications.
 

Posted on July 3, 2020 - (225 views)
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