A Smart System for Shock and Vibration Isolation of Sensitive Electronic Devices On-Board a Vehicle

2016 ◽  
pp. 503-511 ◽  
Author(s):  
M. De Michele ◽  
G. Di Massa ◽  
G. Frisella ◽  
S. Lippolis ◽  
S. Pagano ◽  
...  
Keyword(s):  
Vibration Isolation ◽  
Electronic Devices ◽  
Smart System

Contrast Test Research on Application of Dry Friction Isolators to Vibration Isolation of Vehicle Electronic Devices

2014 ◽  
Vol 505-506 ◽  
pp. 360-364
Author(s):  
Jun Fang Hou ◽  
Rong Li Li ◽  
Guang Chun Yu ◽  
Tao Luo ◽  
Hai Wen He
Keyword(s):  
Dry Friction ◽  
Vibration Isolation ◽  
Electronic Device ◽  
Electronic Devices ◽  
Three Dimensional ◽  
Wire Mesh ◽  
Vibration Source ◽  
Vibration Isolator ◽  
Vibration Isolators ◽  
Research On Application

As regards the reliability of the vehicle electronic devices on the tracklayer getting worse due to severe vibration, isolation theory and mechanical model of the GWF vibration isolator and wire-mesh vibration isolator were analyzed, and the test research on the isolation effectiveness of the two isolators applied to the isolation of the vehicle electronic devices were carried out. The test results show that the vibration source of the foundation of the electronic device is mainly from the structure resonance, and the two dry friction vibration isolators exhibit excellent isolation effectiveness on different roads and at different speed. The wire-mesh vibration isolator shows better performance than GWF vibration isolator on three-dimensional comprehensive isolation.

scholarly journals Implementation of Smart Home using Wi-Fi to IR through MQTT

2019 ◽  
Vol 8 (4) ◽  
pp. 7973-7980
Keyword(s):  
Wireless Communication ◽  
Temperature Sensor ◽  
Smart Home ◽  
Electronic Devices ◽  
Smart Phone ◽  
The Other ◽  
Home Automation ◽  
Air Conditioner ◽  
Smart System ◽  
Integrated Devices

As there is an advancement in wireless communication there is a wide development in embedding all the devices together and controlling them through a single device. Home automation is a smart system that has been becoming more popular in the present era, where all the devices related to the home are controlled remotely through a Smart Hub. The aim of the project is to develop a Smart Hub and to control multiple IR devices through a Smart Hub using Wi-Fi to IR through MQTT, because it is inconvenient to use multiple remotes for multiple IR devices. Smart Hub consists of peripherals ESP-WROOM-32D (Microcontroller), RT400, IR transmitter, IR receiver, LDR(Light Dependent Resistor) and LM35 as Temperature sensor. All the controlling of these integrated devices can be controlled through a smart phone or tablet. This technology uses ESP-WROOM-32D and web server using mobile phone or tablet having a specific application, one can control the smart system from anywhere or with in a home remotely. This paper describes about the automation of home for a specific electronic devices having IR Transceiver like Television, Air conditioner, Dish box, DVD player and many more. This paper also describes how MQTT protocol is used for the implementation of the present prototype using ESP-WROOM-32D. The other scenario is when we don’t have the IR Transceiver devices like light, fan etc and the devices which are manually operated through electrical switches also can be controlled through IR Transceiver, Arduino and Relays

WHANs Based Smart Home System Designing in Intelligent Buildings

2012 ◽  
Vol 174-177 ◽  
pp. 1876-1879
Author(s):  
Yan Zhang ◽  
Xian Sheng Guo
Keyword(s):  
Data Transmission ◽  
Smart Home ◽  
Electronic Devices ◽  
Wireless Sensor ◽  
Home Automation ◽  
Transmission Network ◽  
Practical Application ◽  
Smart System ◽  
Intelligent Buildings ◽  
Independent Subsystem

This paper presents a new and competitive smart home system in intelligent buildings based on wireless home automation networks (WHANs). Our designed system has three layers: ultimate controller, data transmission network, and wireless sensor networks. The merits of our system include two folds: 1) it is easy to be adopted in our home without any changing our existing electronic devices; 2) unlike other independent subsystem, the whole-sale functions of smart system are integrated into our system, it can perform well from many anticipant applications. The efficacy of our designed system is proven by practical application environment.

Atom-probe analysis of the solid-liquid interface

1995 ◽  
Vol 53 ◽  
pp. 676-677
Author(s):  
J.A. Panitz
Keyword(s):  
Molecular Level ◽  
Selective Adsorption ◽  
Electronic Devices ◽  
Atom Probe ◽  
Chemical Agent ◽  
Hostile Environment ◽  
Solid Interface ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Chemically Selective

The first few atomic layers of a solid can form a barrier between its interior and an often hostile environment. Although adsorption at the vacuum-solid interface has been studied in great detail, little is known about adsorption at the liquid-solid interface. Adsorption at a liquid-solid interface is of intrinsic interest, and is of technological importance because it provides a way to coat a surface with monolayer or multilayer structures. A pinhole free monolayer (with a reasonable dielectric constant) could lead to the development of nanoscale capacitors with unique characteristics and lithographic resists that surpass the resolution of their conventional counterparts. Chemically selective adsorption is of particular interest because it can be used to passivate a surface from external modification or change the wear and the lubrication properties of a surface to reflect new and useful properties. Immunochemical adsorption could be used to fabricate novel molecular electronic devices or to construct small, “smart”, unobtrusive sensors with the potential to detect a wide variety of preselected species at the molecular level. These might include a particular carcinogen in the environment, a specific type of explosive, a chemical agent, a virus, or even a tumor in the human body.

Study of dislocation loops in Arsenic-Rich as-grown GaAs

1987 ◽  
Vol 45 ◽  
pp. 350-351
Author(s):  
Byung-Teak Lee
Keyword(s):  
Point Defects ◽  
Electronic Devices ◽  
Arsenic Concentration ◽  
Stoichiometric Compound ◽  
Dislocation Loops ◽  
Gaas Crystal ◽  
Ion Milling ◽  
Transmission Electron ◽  
Arsenic Source ◽  
High Arsenic

Grown-in dislocations in GaAs have been a major obstacle in utilizing this material for the potential electronic devices. Although it has been proposed in many reports that supersaturation of point defects can generate dislocation loops in growing crystals and can be a main formation mechanism of grown-in dislocations, there are very few reports on either the observation or the structural analysis of the stoichiometry-generated loops. In this work, dislocation loops in an arsenic-rich GaAs crystal have been studied by transmission electron microscopy.The single crystal with high arsenic concentration was grown using the Horizontal Bridgman method. The arsenic source temperature during the crystal growth was about 630°C whereas 617±1°C is normally believed to be optimum one to grow a stoichiometric compound. Samples with various orientations were prepared either by chemical thinning or ion milling and examined in both a JEOL JEM 200CX and a Siemens Elmiskop 102.

Comparison of TEM and STM observations of small silver clusters on different carbon supports

1990 ◽  
Vol 48 (4) ◽  
pp. 264-265
Author(s):  
Bernd Tesche ◽  
Tobias Schilling
Keyword(s):  
Vibration Isolation ◽  
Pyrolytic Graphite ◽  
Carbon Film ◽  
Silver Clusters ◽  
Carbon Supports ◽  
Stacking Order ◽  
System P ◽  
High Resolution Tem ◽  
High Degree ◽  
Degree Of Order

The objective of our work is to determine:a) whether both of the imaging methods (TEM, STM) yield comparable data andb) which method is better suited for a reliable structure analysis of microclusters smaller than 1.5 nm, where a deviation of the bulk structure is expected.The silver was evaporated in a bell-jar system (p 10−5 pa) and deposited onto a 6 nm thick amorphous carbon film and a freshly cleaved highly oriented pyrolytic graphite (HOPG).The average deposited Ag thickness is 0.1 nm, controlled by a quartz crystal microbalance at a deposition rate of 0.02 nm/sec. The high resolution TEM investigations (100 kV) were executed by a hollow-cone illumination (HCI). For the STM investigations a commercial STM was used. With special vibration isolation we achieved a resolution of 0.06 nm (inserted diffraction image in Fig. 1c). The carbon film shows the remarkable reduction in noise by using HCI (Fig. 1a). The HOPG substrate (Fig. 1b), cleaved in sheets thinner than 30 nm for the TEM investigations, shows the typical arrangement of a nearly perfect stacking order and varying degrees of rotational disorder (i.e. artificial single crystals). The STM image (Fig. 1c) demonstrates the high degree of order in HOPG with atomic resolution.

Vibration isolation of power tool operators

1983 ◽  
Author(s):  
C. W. Suggs ◽  
C. F. Abrams
Keyword(s):  
Vibration Isolation
Sign in / Sign up

Export Citation Format

Share Document