CoreMorrow Piezo Tilt Platform/Fast Steering Mirror Aids Satellite Breakthroughs
In the vast universe, satellites are important "messengers" for humanity to explore space and achieve interstellar information exchange. Satellite technology has not only changed people's lifestyles but also is promoting social development and innovation at an unprecedented speed. Today, the satellite industry has become an indispensable key part of the modern economic society. It has a wide range of applications, covering multiple fields such as communication, navigation, and remote sensing, and plays a crucial role in many aspects including communication support, environmental monitoring, disaster early warning, agricultural production, and scientific research.
(Note: Image from online resources)
Ⅰ Satellite Networking: The Golden Age of Space-Ground Interconnection is Arriving
When we look up at the starry sky, a communication revolution is quietly unfolding there. In recent years, the global satellite industry has witnessed an explosive growth wave - the iterative breakthroughs in aerospace technology have led to a stepwise decline in the manufacturing and launch costs of satellites. The demand for low-orbit satellite clusters in the communication field and the Internet industry has been continuously rising. Together, they have reshaped the existing pattern of space communication and promoted the rapid expansion of the market size of low-orbit satellites.
(Note: Image from online resources)
(Note: Image from online resources)
In order to further maintain an edge in the global race for low-orbit satellite construction, China's satellite Internet construction is gradually advancing. With the accelerated advancement of the construction process, the bandwidth performance of traditional microwave communication has gradually become difficult to meet the transmission requirements of massive data. Against this backdrop, satellite laser communication, as the core technology of the new generation of space information transmission, has demonstrated remarkable application value and development potential in modern communication scenarios due to its outstanding technical characteristics: satellite laser communication not only has ultra-high bandwidth transmission capabilities, but also possesses extremely strong anti-interference performance and excellent information confidentiality advantages.
Ⅱ Overcoming Difficulties: Precision Challenges in Satellite Laser Communication
In the field of satellite communication, the principle is to precisely launch satellites to orbit at a specific height for operation, thereby functioning as a powerful microwave relay station. The communication transponders carried on it can keenly receive the signals transmitted by ground stations, then amplify and frequency convert the signals, and then efficiently forward them to other ground stations. Thus, the cross-regional information transmission task between the two ground stations was successfully completed. However, in the process of satellite laser communication, achieving precise beam alignment between a high-speed satellite and the ground is undoubtedly an extremely challenging problem.
(Note: Image from online resources)
This Technology Faces Three Extreme Challenges: Sub-micro radian level pointing accuracy
When the light beam is transmitted over an extremely long distance, the deviation of the landing point needs to be controlled within a very small range
Millisecond-level response speed
Interferences such as satellite orbit movement and platform vibration need to be compensated in real time
Adaptability to extreme environments
The working device needs to operate stably for a long time in a space environment with vacuum, low temperature and strong radiation
Ⅲ Precise Alignment: The Powerful Assistance of CoreMorrow Piezo Tip/Tilt Platform/Fast Steering Mirror
CoreMorrow Piezo Tip/Tilt Platform Shows Outstanding Adaptability and Strong Application Value in the Satellite Field.
CoreMorrow piezo tip/tilt platform can be regarded as a core precision aiming device in satellite laser communication systems. In the process of constructing ground-to-air links and inter-satellite links, it is crucial to achieve precise targeting and tracking of optical signals. The piezo tip/tilt platform plays a key role in this regard. It can achieve ultra-high precision deflection with a resolution of 0.02μrad, providing a solid guarantee for the stable operation and efficient transmission of satellite communications.
From technical perspective, piezo ceramics, as the core driving components of piezo tip/tilt platform, have unique advantages. Through the extremely fine displacements of multiple piezo ceramics inside the structure, the deflection mirror can perform single-axis or multi-axis angular deflection movements, and the precision can even reach sub-micro-arc. Furthermore, the structural design of the piezo tip/tilt platform also fully meets the requirements of satellite equipment for load capacity in the complex space environment.
（Motion Diagram）
In addition, considering the special environments of satellites, such as extreme conditions like vacuum and low temperatures, CoreMorrow has specially launched vacuum and low-temperature versions piezo tip/tilt platform. These special versions can perfectly meet the working requirements of satellites in the space environment and provide all-round and personalized solutions for the stable operation of satellite equipment. We can also provide custom services based on the specific requirements from customers to meet the diverse and differentiated application demands in the satellite field.
CoreMorrow specially developed and designed aerospace-grade piezo fast steering mirror for the aerospace field, with small size, low power consumption, and capable of stable operation in extreme environments such as vacuum, low temperature, and high vibration and shock. It has been widely applied in the aerospace field, for instance, "FY-3E", "ASO-S", "Jilin-1", etc. It is like equipping satellites with high-precision laser "walkie-talkies", which greatly enhances the quality and efficiency of satellite communication.
(Note: Image from online resources)
01
— CoremorrowP33 Piezo Tip/Tilt Platform/Fast Steering Mirror —
P33 Piezo Tip/Tilt Platform is a deflection platform with fast response and compact size. It provides high-precision angular motion of the top platform. Compared with other actuators, the flexible hinge-guided piezoelectric deflection platform provides higher acceleration, keeping the step response time in sub-millisecond range. It has 5 different deflection ranges, with a beam deflection of up to 20mrad.
▲Characteristics
• θx, θy tilt
• Tilt range to 10mrad
• Fast-ms response time
• High closed-loop positioning accuracy
• High temperature stability
• Custom UHV, etc. is available
Technical Data
|
Model |
P33H.T2S38Y |
P33H.T4S50Y |
|
Tilt range（single stage）
（0～100V） |
≥2.5mrad |
≥5mrad |
|
Dimension of load |
Dia.25mm×5mm |
Dia.25mm×5mm |
|
Driving voltage |
0-100V |
0-100V |
|
Drive/control |
3 driving channels 2 sensing channels |
3 driving channels 2 sensing channels |
|
Active Axis |
θx、θy |
θx、θy |
|
Sensor |
SGS |
SGS |
|
Unloaded resonant frequency |
＞2.9KHz（±5%） |
＞1.5KHz（±5%） |
|
Repeatability |
≤1.5μrad |
≤3μrad |
|
Closed-loop linearity |
0.1%F.S. |
0.2%F.S. |
|
Angular resolution(open-loop) |
≤0.05μrad |
≤0.15μrad |
|
Angular resolution(closed-loop) |
≤0.75μrad |
≤1.5μrad |
|
El. Capacitance of single axis |
3.6μF |
7.2μF |
|
Total irradiation |
≥100krad（Si） |
≥100krad（Si） |
|
Temperature |
Working temperature：-25℃～60℃
Storage temperature：-40℃～80℃ |
Working temperature：-25℃～60℃
Storage temperature：-40℃～80℃ |
|
Service life |
≥15 |
≥15 |
|
Failure rate |
≤240Fit |
≤240Fit |
|
Impact test |
1000g |
1000g |
|
Sin vibration test |
10g |
20g |
|
Random vibration test |
8.46g |
20g |
|
Accelerated life test（After the test, the product still work well） |
2736h Equivalent to 18 years |
2328h Equivalent to 15 years |
|
Mass of the mechanism |
≤120g |
≤200g |
|
Material |
Titanium alloy |
Titanium alloy |
|
Main Body Dimensions |
≤Φ25mm×38mm |
≤Φ25mm×50mm |
|
Dimensions of the mechanism |
Aerospace single-core cable + aerospace 6-core cable |
Aerospace single-core cable + aerospace 6-core cable |
02
— CoremorrowS37 Piezo Tip/Tilt Platform/Fast Steering Mirror —
S37 is a highly reliable piezo faststeering mirror with θx and θy deflection. The product is compact in size and structure, and can achieve a deflection range of 5mrad, making it very suitable for precise optical path adjustment.
▲Characteristics
• High reliability
• Anti-vibration design
• Full closed-loop high precision
• Optional open/closed loop
• Industrial grade/Military grade/Aerospace grade
Technical Data
|
Model |
S37H.T2S37F |
S37H.T4S55F |
|
Tilt range（single stage）
（0～100V） |
≥2.5mrad |
≥5mrad |
|
Dimension of load |
Dia.25mm×5mm |
Dia.25mm×5mm |
|
Driving voltage |
0-100V |
0-100V |
|
Drive/control |
3 driving channels 2 sensing channels |
3 driving channels 2 sensing channels |
|
Active Axis |
θx、θy |
θx、θy |
|
Sensor |
SGS |
SGS |
|
Unloaded resonant frequency |
＞6.5KHz（±5%） |
＞6.3KHz（±5%） |
|
Repeatability |
≤1μrad |
≤1.5μrad |
|
Closed-loop linearity |
0.1%F.S. |
0.1%F.S. |
|
Angular resolution(open-loop) |
≤0.05μrad |
≤0.15μrad |
|
Angular resolution(closed-loop) |
≤0.75μrad |
≤1.5μrad |
|
El. Capacitance of single axis |
3.6μF |
7.2μF |
|
Total irradiation |
≥100krad（Si） |
≥100krad（Si） |
|
Temperature |
Working temperature：-25℃～60℃
Storage temperature：-40℃～80℃ |
Working temperature：-25℃～60℃
Storage temperature：-40℃～80℃ |
|
Service life |
≥15 years |
≥15 years |
|
Failure rate |
≤240Fit |
≤240Fit |
|
Impact test |
1000g |
1000g |
|
Sin vibration test |
20g |
10g |
|
Random vibration test |
20g |
8.46g |
|
Accelerated life test（After the test, the product still work well） |
2328h Equivalent to 15 years |
2328h Equivalent to 15 years |
|
Mass of the mechanism |
≤200g |
≤250g |
|
Material |
Titanium alloy |
Titanium alloy |
|
Main Body Dimensions |
≤35mm×35mm×37mm |
≤35mm×35mm×55mm |
|
Dimensions of the mechanism |
Aerospace single-core cable + aerospace 6-core cable |
Aerospace single-core cable + aerospace 6-core cable |
03
— Coremorrow S38 Small Volumn Piezo Tip/Tilt Platform/Fast Steering Mirror —
The S38-C piezo tip tilt platform is a θx, θy 2-axis deflection piezo fast steering mirror. It is equipped with a lens mounting cap and is small in size and easy to integrate. It can be integrated into a cage structure with a right-angle adapter.
▲Characteristics
• θx, θy tilt
• Tilt range to 2.4mrad
• Optional close- loop sensor
Technical Data
|
Model |
S38H.T2S29Y |
S38H.T4S47Y |
|
Tilt range（single stage）
（0～100V） |
≥2.4mrad |
≥4.6mrad |
|
Dimension of load |
Dia.25mm×5mm |
Dia.25mm×5mm |
|
Driving voltage |
0-100V |
0-100V |
|
Drive/control |
3 driving channels 2 sensing channels |
3 driving channels 2 sensing channels |
|
Active Axis |
θx、θy |
θx、θy |
|
Sensor |
SGS |
SGS |
|
Unloaded resonant frequency |
＞2.0KHz（±5%） |
＞1.5KHz（±5%） |
|
Repeatability |
≤1.5μrad |
≤14μrad |
|
Closed-loop linearity |
0.4%F.S. |
0.4%F.S. |
|
Angular resolution(open-loop) |
≤0.05μrad |
≤0.15μrad |
|
Angular resolution(closed-loop) |
≤0.75μrad |
≤1.5μrad |
|
El. Capacitance of single axis |
3.6μF |
7.2μF |
|
Total irradiation |
≥100krad（Si） |
≥100krad（Si） |
|
Temperature |
Working temperature：-25℃～60℃
Storage temperature：-40℃～80℃ |
Working temperature：-25℃～60℃
Storage temperature：-40℃～80℃ |
|
Service life |
≥15 years |
≥15 years |
|
Failure rate |
≤240Fit |
≤240Fit |
|
Impact test |
1000g |
1000g |
|
Sin vibration test |
20g |
20g |
|
Random vibration test |
20g |
20g |
|
Accelerated life test（After the test, the product still work well） |
2328h Equivalent to 15 years |
2328h Equivalent to 15 years |
|
Mass of the mechanism |
≤80g |
≤80g |
|
Material |
Titanium alloy |
Titanium alloy |
|
Main Body Dimensions |
≤Φ20mm×29mm |
≤Φ20mm×47mm |
|
Dimensions of the mechanism |
6-core low-voltage shielded wire + 4-core silicone shielded wire (white flexible wire) |
6-core low-voltage shielded wire + 4-core silicone shielded wire (white flexible wire) |
Conclusion
In the current era of continuous expansion of satellite applications and continuous technological upgrades, CoreMorrow will always uphold the spirit of innovation, continuously delve into piezoelectric nanotechnology, and with outstanding product performance and professional custom services to deeply meet the development needs of the satellite field. We will contribute more to the development of the satellite industry in China and even the world, and jointly explore a more brilliant starry sea.
For further details, please call +86-451-86268790, or add WeChat ID:17051647888.
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