mode sensors and switches

Ngày tải lên: 13/10/2012, 11:13

Ngày tải lên: 13/10/2012, 11:13

Ngày tải lên: 13/10/2012, 11:13

Ngày tải lên: 13/10/2012, 11:13

Ngày tải lên: 13/10/2012, 11:13

Ngày tải lên: 13/10/2012, 11:13

Ngày tải lên: 13/10/2012, 11:13

Ngày tải lên: 13/10/2012, 11:13

... direction and magnitude of the misalignment between the spin axis and true north. ii Table of Contents Introduction Page 1 Part I: Sensors for Mobile Robot Positioning Page 5 Chapter 1: Sensors ... Doppler Sensors The rotational displacement sensors discussed above derive navigation parameters directly from wheel rotation, and are thus subject to problems arising from slippage, tread wear, and/ or ... dead-reckoning information. An Page 3 1. Sensors for Dead-reckoning 2. Heading Sensors 3. Active Beacons 4. Sensors for Map-based Positioning Part II: Systems and Methods for Mobile Robot Positioning 5....

Ngày tải lên: 12/12/2013, 21:16

... encoder is attached) and the drive wheel. We can compute the incremental travel distance for the left and right wheel, )U and )U , L,i R,i according to )U = c N L/R, I m L/R, I and the incremental ... I: Sensors for Mobile Robot Positioning Chapter 1: Sensors for Dead Reckoning Page 22 Figure 1.14: An 8-DOF platform with 4 wheels individually driven and steered. This platform was designed and ... tested and used in many different mobile robot control interfaces. The chip has proven to work reliably and accurately, and it is used on commercially available mobile robots, such as TRC LabMate and HelpMate....

Ngày tải lên: 16/12/2013, 14:15

... specifications for the Andrew Autogyro Navigator (Courtesy of [Andrew Corp].) Figure 2.12: The Andrew AUTOGYRO Navigator . (Courtesy of [Andrew Corp].) in [Allen et al., 1994; Bennett and Emge, 1994]. In ... Magnetoresistive compasses.  Magnetoelastic compasses. Chapter 2: Heading Sensors 43 Figure 2.11: The Andrew Autogyro Model 3ARG. (Courtesy of [Andrew Corp].) Parameter Value Units Input rotation rate ±100 ... insensitivity to gravity effects, quick start-up, and good sensitivity in terms of bias drift rate and the random walk coefficient. Coil geometry is not critical, and no path length control is needed. Some...

Ngày tải lên: 22/12/2013, 20:16

... al., 1991; Killough and Pin, 1992; Pin and Killough, 1994; Borenstein, 1995]. Resulting problems include increased wheel slippage and thus reduced odometry accuracy. Recently, Reister and Unseren [1992; ... is attached) and the drive wheel. We can compute the incremental travel distance for the left and right wheel, U and U , L,i R,i according to U = c N (1.3) L/R, i m L/R, i and the incremental ... H. Byrne, originally published as Sandia Report SAND93-0827, Sandia National Laboratories, 1993. The authors wish to thank the Department of Energy (DOE), and especially Dr. Linton W. Yarbrough,...

Ngày tải lên: 22/12/2013, 20:16

... Instruments and Instrumentation 31 are available as pressure sensors and accelerometers, biosensors, chemical sensors, optical sensors, magnetic sensors, etc. Intelligent vision systems and parallel ... requires a good understanding and knowledge of many areas of disciplines including modern IC design and implementation. The understanding and knowledge areas necessary for the design and implementation ... significant progress has been made in instruments and instru- mentation systems because of the integration of microsensors, nanosensors, and smart sensors in measurement systems. A conventional...

Ngày tải lên: 23/12/2013, 01:16

... as applied to sensors and instruments. Some of important ones are Bluetooth, HiperLAN, and the IEEE 802 standards for communication and networks, and the IEEE 1451 family of standards for sensors. ... Developing Sensors 24 1.4.3 Trends in Sensor Technology and IC Sensors 25 1.4.4 Sensor Arrays and Multisensor Systems 28 1.4.5 Smart Sensors 29 1.5 Instrument and Sensor Communication and Networks ... temperature sensing. Copper and gold have good electrical and thermal properties and are used primarily in semi- conductors and microsensors. Lead has good piezoelectric, sound, and vibra- tion properties....

Ngày tải lên: 23/12/2013, 01:16

... minimal slippage is [Holland, 1983] Page 3 1. Sensors for Dead-reckoning 2. Heading Sensors 3. Active Beacons 4. Sensors for Map-based Positioning Part II: Systems and Methods for Mobile Robot ... Doppler Sensors The rotational displacement sensors discussed above derive navigation parameters directly from wheel rotation, and are thus subject to problems arising from slippage, tread wear, and/ or ... directly related to the direction and magnitude of the misalignment between the spin axis and true north. Part I: Sensors for Mobile Robot Positioning Chapter 2: Heading Sensors Page 35 IFOG sensitivity...

Ngày tải lên: 19/01/2014, 19:20

... possible sensors and transducers is by now very large, and most textbooks that are concerned with the interfaces between electronic circuits and other devices tend to deal only with a few types of sensors ... the diaphragm and the backplate will increase the capacitance, in accordance with the formula shown in Figure 1.13(b), and so reduce the resonant 12 SENSORS AND TRANSDUCERS Table 1.1 Stress, strain and ... edition of Sensors and Transducers has been thoroughly revised to take account of the ever-increasing role of these components and of im- provements in design. New tables of properties and illustrations...

Ngày tải lên: 25/01/2014, 15:20

... iron and nickel) and mumetal (iron, nickel, Where am I? Sensors and Methods for Mobile Robot Positioning by J. Borenstein , H. R. Everett , and L. Feng 123 Contributing authors: S. W. Lee and ... relative to a known starting position. Chapter 2: Heading Sensors 43 Figure 2.11: The Andrew Autogyro Model 3ARG. (Courtesy of [Andrew Corp].) Parameter Value Units Input rotation rate ±100 ... encoders: incremental and absolute. The incremental version measures rotational velocity and can infer relative position, while absolute models directly measure angular position and infer velocity....

Ngày tải lên: 13/02/2014, 09:20

... 1993]: D Where am I? Sensors and Methods for Mobile Robot Positioning by J. Borenstein , H. R. Everett , and L. Feng 123 Contributing authors: S. W. Lee and R. H. Byrne Edited and compiled by J. ... specifications for the Andrew Autogyro Navigator (Courtesy of [Andrew Corp].) Figure 2.12: The Andrew AUTOGYRO Navigator . (Courtesy of [Andrew Corp].) in [Allen et al., 1994; Bennett and Emge, 1994]. In ... magnetometer, in that the “flux-gathering" a Chapter 2: Heading Sensors 43 Figure 2.11: The Andrew Autogyro Model 3ARG. (Courtesy of [Andrew Corp].) Parameter Value Units Input rotation rate ±100...

Ngày tải lên: 03/03/2014, 23:09

... gas sensors, mostly based on SnO 2 sensors [7]. A lot of research has been done on these types of gas sensors [7,49–53], especially in Japan [54]. These sensors are rugged and inexpensive and thusverypromisingfordevelopinggassensors.Manymodels have ... environmental analysis does not demand B. Timmer et al. / Sensors and Actuators B 107 (2005) 666–677 675 Table 2 Parameters of different types of ammonia sensors and sensor systems Principle Lower ... ammo- nia.Ammoniacandiffuseoutofthebloodintothelungswhen the ammonia levels become higher than the ammonia levels Sensors and Actuators B 107 (2005) 666–677 Ammonia sensors and their applications—a review Bj ¨ orn Timmer ∗ , Wouter Olthuis,...

Ngày tải lên: 19/03/2014, 16:47

... The nanowire sensors are very sensitive and are able to detect concentrations of CO and CH 4 in the low ppm-regime. Experiments for better understanding of the growth mechanism, and for well-defined ... head of the ARC-division Nano-System-Technologies and is developing nanosensors for gas detection and new photonic devices. Alexandra Tischner Alexandra Tischner studied Technical Physics at the ... understand the influence of the intermediate metal layers on nanowire growth and geometry, Cu and Au dot arrays with different diameters are presently fabricated by electron beam lithography and...

Ngày tải lên: 19/03/2014, 16:47