Laser diode active height control system for data storage applications

Resources of memory are frequently used times without number for reducing cost of control system. Rewriting in memory would cause occasional hardware conflict when especial data are inputted or are calculated, thereby system faults even accidents are elicited. Origin of occasional malfunction was analysed in automatic control system, necessity of program storage separate from data storage was discussed, and the notion was put forward that resource allocation of memory should be compatible with the system function. So dead halt owing to codes cover each other could be avoided, and reliability of measurement or control system could be effectively improved.

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Laser Diode Feedback Sensor Characterization Experiments for Data Storage Applications

2006 Optical Data Storage Topical Meeting ◽

10.1109/ods.2006.1632746 ◽

2006 ◽

Author(s):

P. Herget ◽

Jen-Yu Fang ◽

J.A. Bain ◽

T.E. Schlesinger

Keyword(s):

Data Storage ◽

Laser Diode

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A tide prediction and tide height control system for laboratory mesocosms

PeerJ ◽

10.7717/peerj.1442 ◽

2015 ◽

Vol 3 ◽

pp. e1442 ◽

Cited By ~ 7

Author(s):

Luke P. Miller ◽

Jeremy D. Long

Keyword(s):

Control System ◽

Open Source Software ◽

Immersion Time ◽

Field Experiments ◽

Scale Insect ◽

Tidal Elevation ◽

Height Control ◽

Edaphic Conditions ◽

Tide Height ◽

Aquarium Water

Experimental mesocosm studies of rocky shore and estuarine intertidal systems may benefit from the application of natural tide cycles to better replicate variation in immersion time, water depth, and attendant fluctuations in abiotic and edaphic conditions. Here we describe a stand-alone microcontroller tide prediction open-source software program, coupled with a mechanical tidal elevation control system, which allows continuous adjustment of aquarium water depths in synchrony with local tide cycles. We used this system to monitor the growth ofSpartina foliosamarsh cordgrass and scale insect herbivores at three simulated shore elevations in laboratory mesocosms. Plant growth decreased with increasing shore elevation, while scale insect population growth on the plants was not strongly affected by immersion time. This system shows promise for a range of laboratory mesocosm studies where natural tide cycling could impact organism performance or behavior, while the tide prediction system could additionally be utilized in field experiments where treatments need to be applied at certain stages of the tide cycle.

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Application height control system of a bulldozer moving up and down weak sloped terrain in driving and braking states.

Doboku Gakkai Ronbunshu ◽

10.2208/jscej.1993.480_137 ◽

1993 ◽

pp. 137-145

Author(s):

Tatsuro MURO

Keyword(s):

Control System ◽

Height Control

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Analysis of a Hydrofoil Craft with a Suspension System

Progress in Marine Science and Technology - HSMV 2020 ◽

10.3233/pmst200028 ◽

2020 ◽

Author(s):

Michel Touw ◽

Jacob Lotz ◽

Ido Akkerman

Keyword(s):

Experimental Data ◽

Control System ◽

State Space ◽

State Space Model ◽

Suspension System ◽

Future Research ◽

Passive System ◽

Height Control ◽

Space Model ◽

Front Wing

In this paper we investigate the efficacy of augmenting, or replacing, an active height control system for a submerged hydrofoil with a passive system based on springs and dampers. A state-space model for submerged hydrofoils is formulated and extended to allow for a suspension at the front wing, aft wing or both wings. The model is partially verified by obtaining results in the fixed-wing limit and comparing these with experimental data from the MARIN Foiling Future Demonstrator. In the current study we limit ourselves to translational springs, only allowing suspension motion in the heave direction. This results in unfavorable behavior: either the motions increased or the system becomes unstable. It is therefore recommended for future research to try rotational springs.

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Development of a model for the management of environmental safety of the region, taking into account of the GIS capacity

MATEC Web of Conferences ◽

10.1051/matecconf/201819302038 ◽

2018 ◽

Vol 193 ◽

pp. 02038 ◽

Cited By ~ 8

Author(s):

Viacheslav Burlov ◽

Andrey Andreev ◽

Fedor Gomazov

Keyword(s):

Information System ◽

Control System ◽

Data Storage ◽

Storage System ◽

Practical Interest ◽

Environmental Safety ◽

Environmental Data ◽

System Control ◽

Results Management ◽

The Impact

The system of space monitoring (SM) is of great importance, as a means of ensuring environmental safety. This system is based on remote sensing. The structure of SM is a distributed system. This system comprises independent data storage, system control, system of dynamic ratings, capacity and forecasting, control system, information system (IS) processing of monitoring data. As IS it is necessary to choose a geographic information system (GIS). IS monitoring refers to the problem-oriented system. These information systems include specialized databases models. All monitoring systems use sets of models, which allow building complex enterprise models. The peculiarity of the SM is the need to coordinate support of this monitoring and rate of the GIS capacity. Production Manager's decision is the impact on the object of monitoring. Results management and environmental data are received at the monitoring subsystem. Integration of SM and GIS monitoring has led to the creation of geoinformation space monitor (GISM). The operation of the system GISM is designed to provide a guaranteed result taking into account the capacity. Basis – the decision of the decision makers (DM). Therefore, an independent scientific and practical interest is the adequate mathematical model of DM.

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