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Honeywell Debuts New Rate Sensors For Small Satellites
New, smaller sensors provide high-performance navigation at a low cost with less power consumption
Amanda Jensen
June 17, 2021
PHOENIX, June 17, 2021 – Honeywell (NASDAQ:HON) has unveiled a new rate sensor specifically intended to help small satellites navigate increasingly crowded orbits above the Earth’s surface. The new micro-electromechanical system (MEMS)-based product will provide lower cost and power consumption in a smaller size, all while maintaining high levels of performance — an ideal fit for customers building smaller and lower-cost satellites.
At only 145 grams, Honeywell’s HG4934 Space Rate Sensor is roughly the same size and weight as a golf ball. It consumes about one-fifth the amount of electric power, and it is more than 32 times lighter and 60 times smaller than Honeywell’s current offerings. It also is more tolerant of radiation, a key attribute in space, and uses Honeywell’s best-in-class sensor technology.
“With this new sensor, our customers can build smaller, lower-cost satellites that are just as capable and reliable as their traditional predecessors, which will allow them to field new satellite technologies like 5G telecommunications or high-bandwidth global internet,” said Mike Elias, vice president and general manager, Space, Honeywell Aerospace. “Furthermore, the number of satellites is only increasing, which leads to more crowded orbits. It’s critical that our customers have highly precise navigation solutions to help prevent accidents, which could knock functional satellites out of orbit.”
A space rate sensor, also known as an inertial reference unit or IRU, is a type of inertial sensor that is composed of three gyroscopes that work together to sense rotation rates. They determine an aircraft or spacecraft’s change in rotational attitude over time and allow it to move from one location to another without using any external information. It can also serve as a back-up solution to provide extra redundancy in case other navigation systems fail.
Celestial navigation options like star trackers are a popular method of obtaining pointing directions for satellites and spacecraft. This form of navigation uses angular measurements between objects in space (stars, planets, etc.) and the horizon to calculate location. However, sometimes these star trackers are blinded by the sun or affected by thruster gases. In this case, Honeywell’s HG4934 can act as a secondary method of attitude determination.
Honeywell’s HG4934 Space Rate Sensor is available now for commercial, defense, and science applications, and first deliveries to customers began at the end of 2020.
Honeywell has extensive expertise in developing and manufacturing satellite hardware to meet the high-performance demands of space missions, providing precision equipment and solutions that include end-to-end design and manufacturing. Today, Honeywell products can be found on more than 1,000 satellites, delivering mission success.
For more information on Honeywell’s advanced solutions for space, visit aerospace.honeywell.com.
About Honeywell
Honeywell Aerospace products and services are found on virtually every commercial, defense and space aircraft. The Aerospace business unit builds aircraft engines, cockpit and cabin electronics, wireless connectivity systems, mechanical components and more. Its hardware and software solutions create more fuel-efficient aircraft, more direct and on-time flights and safer skies and airports. For more information, visit www.honeywell.com or follow us at @Honeywell_Aero.
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Copyright © 2024 Honeywell International Inc.
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