Vibration Testing for Small Sats

Posted by doEEEt Media Group
On April 2, 2022
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Vibration Testing is a very specialized field where Alter Technology is a highly qualified laboratory performing numerous tests in EEE Parts. To do this kind of service, we have extended and qualified laboratory accreditations that bring to your needs secure and safe work. These include the ones related to Small spacecraft and units. The applicable standards are: ISO 19683 refers to ISO 15864. Launcher’s requirements

EEE Components, SiC Testing

Silicon Carbide (SiC): Properties and applications

Posted by Emilio Cano García
On March 10, 2022
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Silicon Carbide (SiC) is characterized by a polymorphism structure in which there are 250 different crystal forms. Initially, when Edward Goodrich Acheson patented the method of making silicon carbide in powder form in 1893, it was used for abrasive applications. With the advancement of material technology, silicon carbide has been developed in different forms

Small Sats Testing

Small Sats testing for New Space Projects

Posted by doEEEt Media Group
On March 2, 2022
0

New Space projects require “traditional” Space projects equipment-level testing. Typical testing campaigns for any kind of satellite or subsystem include: Vibration, Shock Response Spectrum (SRS), Electromagnetic Compatibility (EMC) / EMI, Thermal vacuum (TVAC), TID, Other more specific tests needed for subsystems may include: Optical tests, Electrostatic Discharges (ESD), Materials tests (mechanical, electrical, cleanliness), Magnetic tests

ALTER Laboratory Services, INSPECTION, ELECTRICAL & VERIFICATION

Frequently Asked Questions (FAQs) – Scanning Acoustic Microscopy

Posted by doEEEt Media Group
On February 23, 2022
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Over the years, our experience in CSAM testing has allowed us, among other things, to have conversations with clients who have come to us with questions about our laboratory services. In ALTER, we are an expert and reliable supplier in the engineering and testing EEE components and equipment for space and other technology markets. This article reports the importance of X-Ray Tomography, Scanning Acoustic Microscopy (SAM), and Cross Section techniques, and the advantages of their combined use for accurate testing.

ALTER Laboratory Services, INSPECTION, ELECTRICAL & VERIFICATION, TESTING, WEBINAR

Webinar – Development of hermetic optocouplers and other optoelectronic devices for space applications

Posted by doEEEt Media Group
On February 21, 2022
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Optoi has developed hermetic optocouplers, in previous activities funded by ESA. On a first project, the devices have been subjected to a full ESCC campaign following ESCC 2265000. This activity allowed the determination of the device’s functional boundaries and included a radiation campaign.

Non-standard testing, TESTING

ANGULAR SENSORS MEASUREMENTS

Posted by Alina Spuma,
On February 18, 2022
0

Under ESA contract number 20945/07/NL/IA, Alter Technology developed test benches for the characterization and qualification testing of 16bit (0.01º accuracy) Contactless angular sensors prototypes for telecom satellites’ extended life mechanisms. Angular sensors (AS) are position devices that provide the displacement in angular degrees concerning a fixed point or an arbitrary reference. The central performances to be measured are accuracy, hysteresis, and measuring range. These parameters must be measured before, during, and after applying environmental treatment during the qualification test campaign.

Non-standard testing, TESTING

THERMAL CYCLING ILLUMINATED PHOTODIODES

Posted by José Luis Corral Castillo
On February 18, 2022
0

160 ILLUMINATED PHOTODIODES Development of a complex setup capable of simultaneously measuring 20 solar sensors under homogeneous incident light During the last decades, continuous technology improvement has allowed the development of increasingly smaller and cheaper satellites. Different private companies figured out this fact and started to think about the possibilities of having their satellite constellation.

Non-standard testing, TESTING

CHARACTERIZATION OF STRAIN GAGES

Posted by Juan Barbero
On February 16, 2022
0

The Strain Gages are used to measure the deformation of materials. These devices are widely used when the deformation of a structure is relevant such as the wings of a plane or the structure of telescopes or rockets. The necessity of testing these strain gages at a wide temperature range leads to the necessity of coupling force-deformation equipment to climatic chambers.

Non-standard testing, TESTING

Vacuum system, temperature and pneumatic system

Posted by doEEEt Media Group
On February 15, 2022
0

The SuperCam is a next-generation scientific instrument that examines rocks and soils with a camera, laser, and spectrometers to seek organic compounds that could be related to past life on Mars. It can identify the chemical and mineral makeup of targets as small as a pencil point from a distance of more than 20 feet (7 meters).

ALTER Laboratory Services, Non-standard testing

Image Sensors: Characterization according to the EMVA 1288 standard

Posted by Pawel Adamiec
On February 15, 2022
0

The EMVA1288 standard let us to measure the crucial parameters of the image sensors and cameras converting the physical model of the camera (image sensor) to the mathematical model, where the parameters can be extracted.

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