Initial design of flight data acquisition unit (FDAU)

2020 ◽  
Author(s):  
Try Kusuma Wardana ◽  
Fuad Surastyo Pranoto ◽  
Sayr Bahri ◽  
Prasetyo Ardi Probo Suseno ◽  
Atik Bintoro
Keyword(s):  
Data Acquisition ◽  
Flight Data ◽  
Initial Design ◽  
Data Acquisition Unit

Refinement and Verification Applied to an In-Flight Data Acquisition Unit*

2002 ◽  
pp. 1-23 ◽  
Author(s):  
Wan Fokkink ◽  
Natalia Ioustinova ◽  
Ernst Kesseler ◽  
Jaco van de Pol ◽  
Yaroslav S. Usenko ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Flight Data ◽  
Data Acquisition Unit

Thermal Management Solutions for enhanced Digital Flight Data Acquisition Unit in Avionics Applications

2015 ◽  
Vol 2015 (1) ◽  
pp. 000517-000525
Author(s):  
Vicentiu Grosu ◽  
Chris Lindgren ◽  
Tamas Vejsz
Keyword(s):  
Heat Transfer ◽  
Data Acquisition ◽  
Thermal Management ◽  
Airline Industry ◽  
Airflow Rate ◽  
Confined Space ◽  
Flight Data ◽  
Conjugated Heat Transfer ◽  
Data Acquisition Unit ◽  
New Generation

According to the Federal Aviation Administration, the commercial airline industry should expect to see the number of passengers traveling per year to grow from its current level of 750 million to nearly 1 billion by 2030. To meet this demand, airlines are placing orders for thousands of new aircraft over the next decade and beyond. With this increase in airline traffic, newer aircraft systems will generate an ever increasing amount of data per flight, data that allows airlines to further enhance their flight operations, flight safety, and reliability. For commercial avionics, the migration of the data acquisition and reporting functions from the traditional interface environments to newer, faster, and more network-centric architectures is creating a new generation of “smart” aircraft. Teledyne Controls' enhanced Digital Flight Data Acquisition Unit is an integral part of a new generation of aircraft and combines the functions of Mandatory Data Acquisition and Recording with a sophisticated Aircraft Conditioning Monitoring System that the aircraft operator uses to monitor the performance and reliability of each aircraft in its fleet. Some of the critical goals in the development of the Digital Flight Data Acquisition Unit are reducing the size and weight over previous generations, while maximizing performance and reducing cost. All of these opposing requirements make the design and fabrication very challenging. One such challenge includes dissipating high power in a confined space, and this makes thermal management a critical component of the overall LRU (line-replaceable unit) design. In addition, to increase the reliability over the lifespan of the unit, passive cooling systems are often required in place of internal fans. This presents another set of challenges, such as optimizing the airflow provided by the aircraft in the electronics bay compartment. This paper will present some of the critical elements in thermal management such as heat sinks, components placement, thermal interface materials, thermal vias, thermal links, packaging approaches and cooling strategy. The design and optimization of the system are based on analytical solutions, conjugated heat transfer and experimental results. The LRU should safely operate under various environmental conditions: ground operation, flight operation, high operating temperature and loss of cooling air where each environmental condition has different parameters for coolant airflow rate, effect of the surroundings, and ambient and coolant air temperature. Draw-Through and Blow-Through cooling analysis were performed using CFD (Computational Fluid Dynamics). The thermal analysis problems solved are conjugated heat transfer for laminar flow with radiation in steady-state or transient regimes. Multiple approaches were identified to remove heat from the critical components through optimization of the components and subsystems. These same approaches can also be used to increase the system's performance and reliability.

Data Acquisition Unit for SATCOM Signal Analyzer

1980 ◽  
Author(s):  
John E. Ohlson ◽  
Marvin J. Langston
Keyword(s):  
Data Acquisition ◽  
Data Acquisition Unit

scholarly journals An Ultra-Sensitive Modular Hybrid EMG–FMG Sensor with Floating Electrodes

Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4775
Author(s):  
Ang Ke ◽  
Jian Huang ◽  
Luyao Chen ◽  
Zhaolong Gao ◽  
Jiping He
Keyword(s):  
Data Acquisition ◽  
Robust Performance ◽  
Prosthetic Control ◽  
Hand Gestures ◽  
Emg Signal ◽  
Average Accuracy ◽  
Good Consistency ◽  
Compact Design ◽  
Data Acquisition Unit ◽  
Novel Design

To improve the reliability and safety of myoelectric prosthetic control, many researchers tend to use multi-modal signals. The combination of electromyography (EMG) and forcemyography (FMG) has been proved to be a practical choice. However, an integrative and compact design of this hybrid sensor is lacking. This paper presents a novel modular EMG–FMG sensor; the sensing module has a novel design that consists of floating electrodes, which act as the sensing probe of both the EMG and FMG. This design improves the integration of the sensor. The whole system contains one data acquisition unit and eight identical sensor modules. Experiments were conducted to evaluate the performance of the sensor system. The results show that the EMG and FMG signals have good consistency under standard conditions; the FMG signal shows a better and more robust performance than the EMG. The average accuracy is 99.07% while using both the EMG and FMG signals for recognition of six hand gestures under standard conditions. Even with two layers of gauze isolated between the sensor and the skin, the average accuracy reaches 90.9% while using only the EMG signal; if we use both the EMG and FMG signals for classification, the average accuracy is 99.42%.

scholarly journals Flight manoeuvring and safe flight visualization with the aid of wide-ranging scrutiny and automation software

2019 ◽  
Vol 272 ◽  
pp. 01021
Author(s):  
J V Muruga Lal Jeyan ◽  
Jency Lal ◽  
M Senthil Kumar ◽  
Arfaj Ahamed Anwar
Keyword(s):  
Data Acquisition ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Display Module ◽  
Flight Data ◽  
Difficult Time ◽  
Standard Procedures ◽  
2D And 3D ◽  
The Impact ◽  
Graphical Presentation

This document guides to an efficient use of FDVCAS system. FDVCAS is a reconstruction, playback, interactive visualization tool, which collects, stores, processes, analyses and present the flight data in high fidelity graphical presentation in 2D and 3D format. It synchronizes and presents in both graphical and synthetic visual form to the extends of analysing the impact of the data on the system in 3D graphic animation. The existing process involves in capturing the data from different input sources and formats, analysing the features of the data monitoring is done manually in offline in a unsynchronized fashion, This is difficult, time consuming and requires highly skilled technical expertise as it is visualized in plain data form. The above standard procedures followed shall be integrated and automated with minimum intelligence to be built, in with the system. In order to analyse the flight data in a coherent way it is required to integrate both 2D and 3D form The proposed concept is the Development of a system with a single solution by providing data display, graphical charts and replay features with a sophisticated graphical user interface, which is super imposed on the outside window imagery. FDVCAS consists of Bypass data acquisition system, Outside Window Imagery (OWI) system with graphical analyser. Bypass data acquisition system receives data from aircraft recorder and transmits the data in engineering format to FDVCAS system. The OWI system has three main modules namely, 3D Visual module, GUI based Graphical analyser and Warning display module. The warnings and the graphical plots are super imposed on the 3D Visual.

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