scholarly journals Auto-tuned thermal control on stratospheric balloon experiments

2018 ◽  
Author(s):  
Susan Redmond ◽  
Steven Benton ◽  
Paul Clark ◽  
Christopher Damaren ◽  
Tim Eifler ◽  
...  
Keyword(s):  
Thermal Control ◽  
Stratospheric Balloon ◽  
Balloon Experiments

scholarly journals Balloon-borne Cosmic Microwave Background experiments

2019 ◽  
Vol 209 ◽  
pp. 01046 ◽  
Author(s):  
Silvia Masi ◽  
A. Coppolecchia ◽  
E. Battistelli ◽  
P. de Bernardis ◽  
F. Columbro ◽  
...  
Keyword(s):  
Cosmic Microwave Background ◽  
Interstellar Dust ◽  
Microwave Background ◽  
Unique Role ◽  
High Frequencies ◽  
Long Duration ◽  
Precision Phase ◽  
Fast Pace ◽  
Stratospheric Balloon ◽  
Balloon Experiments

Stratospheric balloon experiments play a unique role in current Cosmic Microwave Background (CMB) studies. CMB research has entered a precision phase, harvesting the detailed properties of its anisotropy, polarization and spectrum, at incredible precision levels. These measurements, however, require careful monitoring and subtraction of local backgrounds, produced by the earth atmosphere and the interstellar medium. High frequencies (larger than 180 GHz) are crucial for the measurements of interstellar dust contamination, but are degraded by atmospheric emission and its fluctuations, even in the best (cold and dry) sites on earth. For this reason, new balloon-borne missions, exploiting long-duration and ultra-long duration stratospheric flights, are being developed in several laboratories worldwide. These experiments have the double purpose of qualifying instrumentation and validating methods to be used on satellite missions, and produce CMB science at a relatively fast pace, synergically to ground-based CMB observatories.

scholarly journals A STRATOSPHERIC BALLOON FLIGHT PLATFORM AND ITS EMPLOYMENT IN GRAVITATIONAL WAVE COUNTERPART OBSERVATION EXPERIMENTS

2021 ◽  
Vol 53 ◽  
pp. 180-189
Author(s):  
L. Mészáros ◽  
A. Pál ◽  
N. Werner ◽  
M. Ohno ◽  
G. Galgóczi ◽  
...  
Keyword(s):  
Single Unit ◽  
Significant Proportion ◽  
Low Earth Orbit ◽  
Balloon Flight ◽  
The Earth ◽  
Event Trigger ◽  
Stratospheric Balloon ◽  
Single Block ◽  
Balloon Experiments ◽  
Platform System

The Cubesats Applied for MEasuring and LOcalising Transients (CAMELOT) initiative proposes to deploy a fleet of 3U nanosatellites in order to localise GRBs with all-sky coverage. The operation is based on measuring the time delay of the event trigger between satellites that are otherwise uniformly distributed around the Earth in low-Earth orbit (between 500 - 600 km of altitude). In this design, caesium-iodide crystals interact with soft gamma radiation by emitting optical photons. Utilization of this effect, each member of the fleet is equipped with four of such scintillators and the emitted photons are detected by multi-pixel photon counters (MPPCs). Precise timing is crucial for this concept, the timestamping of the events and the synchronisation is provided by GPS. In order to demonstrate the feasibility of the CAMELOT concept, a single-unit CubeSat, named "GRBAlpha" is currently being developed. GRBAlpha is equipped with a single block of scintillator but the other subsystems are all the same as it will be on the CAMELOT units. We describe this single-unit platform system, focusing on the model versions suitable for high-altitude stratospheric balloon flights. This model has a standardized layout (including pin-out configuration, signalling and bus communication) and compatible with significant proportion of CubeSat system vendors. This system of ours is also capable of hosting multiple payloads at the same time, optimizing the utilization of balloon experiments.

Scanning-probe microscope analysis of optical thin films: A new analytical tool in a manufacturing environment

1994 ◽  
Vol 52 ◽  
pp. 1068-1069
Author(s):  
S. P. Sapers ◽  
R. Clark ◽  
P. Somerville
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Thermal Control ◽  
Scanning Probe Microscope ◽  
Scanning Probe ◽  
List Type ◽  
Manufacturing Environment ◽  
Physical Measurements ◽  
Probe Microscope

OCLI is a leading manufacturer of thin films for optical and thermal control applications. The determination of thin film and substrate topography can be a powerful way to obtain information for deposition process design and control, and about the final thin film device properties. At OCLI we use a scanning probe microscope (SPM) in the analytical lab to obtain qualitative and quantitative data about thin film and substrate surfaces for applications in production and research and development. This manufacturing environment requires a rapid response, and a large degree of flexibility, which poses special challenges for this emerging technology. The types of information the SPM provides can be broken into three categories:(1)Imaging of surface topography for visualization purposes, especially for samples that are not SEM compatible due to size or material constraints;(2)Examination of sample surface features to make physical measurements such as surface roughness, lateral feature spacing, grain size, and surface area;(3)Determination of physical properties such as surface compliance, i.e. “hardness”, surface frictional forces, surface electrical properties.

Miniature Heat Pipes for Thermal Control of Radio-Electronic Equipment

2007 ◽  
Vol 38 (3) ◽  
pp. 245-258 ◽  
Author(s):  
Leonid L. Vasiliev ◽  
Andrei G. Kulakov ◽  
L. L. Vasiliev, Jr ◽  
Mikhail I. Rabetskii ◽  
A. A. Antukh
Keyword(s):  
Heat Pipes ◽  
Thermal Control ◽  
Electronic Equipment ◽  
Radio Electronic

PROCEDURE AND TOOLS FOR DEVELOPING THERMAL CONTROL SYSTEM FOR SCIENTIFIC SPACECRAFT EQUIPMENT

2013 ◽  
Vol 4 (3) ◽  
pp. 169-180
Author(s):  
S. A. Hryshyn ◽  
A. G. Batischev ◽  
S. V. Koldashov ◽  
Aliaksei L. Petsiuk ◽  
V. A. Seliantev ◽  
...  
Keyword(s):  
Control System ◽  
Thermal Control ◽  
Thermal Control System

Thermal Control of Loop Heat Pipe with Pressure Regulating Valve

2012 ◽  
Author(s):  
Alejandro Torres ◽  
Donatas Mishkinis ◽  
Andrei Kulakov ◽  
Francisco Romera ◽  
Carmen Gregori
Keyword(s):  
Heat Pipe ◽  
Thermal Control ◽  
Loop Heat Pipe
Sign in / Sign up

Export Citation Format

Share Document