NW
Hold down and release mechanism and actuators (HDRMs)
MEMS/NEMSApplications

Hold down and release mechanism and actuators (HDRMs)

By ARQUIMEA

Our offer for space ranges from flight-proven components such as hold down and release mechanism and actuators (HDRMs)

More from ARQUIMEA

Hold Down & Release Mechanisms (HDRM) REACT – 5KN, 15KN and 35KN space qualified resettable mechanisms

The resettable actuators and low-shock Hold-Down & Release Mechanisms are devices that firmly fix a payload in a satellite during transportation or launch. When the satellite reaches the desire position in orbit, the mechanism releases the payload by electrical activation. ARQUIMEA’s HDRM mechanims (REACT) are available in two different motorization options based either on TiNi or SMARQ® Shape Memory Alloys (SMA) technology. For a perfect performance and test, our mechanisms and actuators for space provide in-field manual reset capability to the end user and covers wide actuation temperature ranges. Typical applications for HDRM include hold-down and release of deployable solar arrays, antennas, booms and masts, reflectors, cover doors, scientific instruments, shutter mechanisms, large structures, launch locks for gimbals, thrusters, stage separation, caging mechanisms, etc. ARQUIMEA’s SMA actuators are based on a two-stage mechanism: structural and trigger. The Structural assembly is responsible of holding the high external loads in a safe and reliable way, while the trigger is responsible of transforming the system into a bistable structure that is self-motorized to effectively release the main bolt. The device is electrically activated with a customizable interface. The total amount of energy is effectively transformed into heat to induce the transformation of the Shape Memory Alloy thus motorizing the system with a redundant trigger. Key features Low-shock <1300 g’s at max load. Non explosive Field resettable mechanisms and actuators. Resettable Resettable in seconds, no need to dismount. Main features of our Hold Down & Release Mechanisms (HDRM) and actuators REACT Three sizes (max load retention) available (5kN, 15kN and 35kN) Manually in-field resettable by the end user. Neither dismounting nor refurbishment required Operation temperature from -90 up to +125ºC Low shock Space-qualified parts and materials Redundant SMA trigger (two independent initiators) Compatible with standard electrical interfaces Near simultaneous release of multiple hold-down points Three standard mechanical interfaces available Custom configurations available under request Full solar array deployment system available: HDRM + cup-cone + hinge Fully European technology ITAR/EAR free

LVDS devices

Our LVDS allows data transmission along twisted pair cables at very high data-rates. Some typical applications are SpaceWire and clock distribution networks. Our devices are available in soft IP core, space-grade ceramic and plastic package. Know more about: - Driver detailed specification - Receiver detailed specification

SEPHY

Space-graded 10BASE-T/100 Base-TX Ethernet PHY which allows full adoption in space of the most widely used network communication protocol while maintaining interoperability with the existing ground equipment. It is available as Soft IP Core, space-grade ceramic and plastic package.

SERDES

SERDES are commonly used in high-speed communications to compensate for limited input/output. The primary use is to provide data transmission over a single line or a differential pair to minimize the number of I/O pins and interconnects.