Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 13 of 13 for “"tachometer"”.
-
Microprocessor-based soft variable structure control for D.C. motor speed regulation
… be the limitation of sample rate, noise from the tachometer, and high gain at positive speed.
-
Direct digital control of D.C. machines
… detection were considered, and a simple digital tachometer designed and built. This tachometer was able to feed a digital number, related to the speed of the machine, to the computer, and was accurate to better than 1%. A direct digital control system was then implemented. The behaviour of the …
-
Tip-up and stabilization of an autonomous four-wheeled vehicle
… The addition of a steering angle sensor and tachometer are suggested to improve the effectiveness of the controller.
-
Probability based models for the power draw and energy spectra of a tumbling mill
… which is mounted with a torque transducer and tachometer to measure mill power. Particle tracking information from PEPT is used to reconstruct the motion of glass beads and infer the overall charge behaviour, while DEM is employed to simulate particle motion and interaction, with collision …
-
A microcomputer controller for a nylon spinning machine
… loosely coupled feedback system which reads two tachometer pulse trains and various plant interlocks and produces two pulse trains which are used to control two solid state variable frequency variable voltage inverters and their AC motors. The specification calls for 24 controllers to be linked …
-
Integrating the curriculum using a small-scale hybrid power train
… for the HPT (air engine, planetary gearset, tachometer, etc.) in earlier semesters. The control system is the "capstone" for the five-semester design project, which has been described in an earlier publication [1]. This thesis describes the development of the "faculty prototype" of the …
-
Regulator control of a short-radius centrifuge and subjective responses to head movements in a rotating environment
… both an optical encoder and an accelerometer. Tachometer development, automatic control, and classical PID control theory was used to develop the gain and integrator time constants, which lead to K=1.5 and Ti=1 sec. This results in an improved steady state error by 99.8% and a more accurate …
-
Multi-Function LIDAR Sensors for Non-Contact Speed and Track Geometry Measurement in Rail Vehicles
… speed measurement devices such as wheel-mounted tachometers or encoders. The ability to accurately measure train speed and distance is a critical part of monitoring track geometry conditions. Wheel-mounted tachometer speed measurements often fluctuate due to wheel vibrations, change in wheel …
-
Active Minimization of Acoustic Energy Density in a Mock Tractor Cab
… engine noise, was derived from the engine's tachometer signal. For the low frequencies at which engine firing occurs, experiments showed that ANC systems minimizing ED and SP both provided significant attenuation of the tonal noise near the operator's head and globally throughout the small …
-
Computer data acquisition, control, and analysis for the University of Tennessee at Chattanooga's internal combustion engine labratory
… the speed of the engine was obtained from the tachometer generator of the dynamometer. This signal was then reduced, filtered,and calibrated; and a linear relationship (speed vs. output signal) was established and used in the software.A pressure differential sensor was used to determine the …
-
Direct Back EMF Detection Method for Sensorless Brushless DC (BLDC) Motor Drives
… for the sensorless system with the help of a dc tachometer is described in the thesis. This procedure has the maximum acceleration performance during the start-up and can be used for all different type applications. An advanced mixed-signal microcontroller is developed so that the EMF sensing …
-
Funnel Vision
This paper will talk about the videos and sculptural installation in my thesis exhibition. Shooting videos outside of the studio developed into a project overarching any individual video or its particular signs. Thus, this paper will focus on the video project with examples that follow a timeline …