A satellite is launched into space at a speed of at least 25,039 miles per hour and , once in orbit , must balance its velocity with the Earth ’ s gravity . Throughout this journey , a satellite ’ s motor endures intense vibration , vacuum , temperature extremes , cosmic radiation and long storage . The smallest fault could cause the satellite to fail . As a result , manufacturers must select the optimal motor during design .
Stepper motors : precision and durability Stepper motors are designed with multiple stator windings surrounding a toothed rotor . Their stepped movement is achieved through a series of controlled electromagnetic pulses . Each pulse activates specific windings in the stator , creating a magnetic field that pulls the rotor ’ s teeth into alignment . With each new pulse , the motor moves incrementally rather than continuously rotating .
This motion allows the motor to achieve high torque at low speeds and maintain precise
positions , making stepper motors the optimal choice for environmental monitoring satellites that require incremental positioning adjustments for precise sensor orientation .
Environmental monitoring satellites took a more central role during the annual COP session of the Subsidiary Body for Scientific and Technological Advice ( SBSTA 61 )
FAULHABER ’ s stepper motors , supplied by EMS , range between six and 66 millimetres and one to 125 grams , combining powerful performance and high acceleration speeds with a compact design . This design choice increases the motor ’ s fuel efficiency , as every kilogram of weight that goes into orbit costs a hundred times its weight in fuel , potentially allowing the satellite to carry out longer missions .
Furthermore , stepper motors can operate under extreme temperatures , cosmic radiation , and outgassing , if modified , without degradation to the motor ’ s mechanisms , extending the motor ’ s service life . This capability makes these stepper motors a highly reliable choice .
With global temperatures rising , the urgency for innovative solutions to combat climate change has never been more critical . As COP29 draws to a close , the role of environmental monitoring satellites has gained some actionable momentum . However , for this technology to reach its full potential , it must be supported by reliable , high-performance components to ensure its success .
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Issue 72 PECM 85