PDServo is a linear math model of a proportional/psuedo derivative control system. This means that the feed forward compensation is proportional and the feedback compensation is both proportional and differential. This is most common in electric motor servos with tachometer as well as potentiometer feedback. This model, being linear, applies mostly to small signal stability analysis. Large command inputs will usually saturate current limits, which would greatly affect overall performance. Also, non linearity's such as coulombic and static friction as well as backlash are not included, which can also significantly influence performance. This program is useful as a first cut design/analysis of a servo system, which will later be enhanced with nonlinear simulation/analysis.
To use PD Servo first initialize all the physical parameters taking care to use consistent units. I edit the file using the edit option of the main keys of MtrxCal. Then define the period and frequency ranges and their increments. This will most likely take several iterations to get the best combination. Then switch to matrix keys and execute the program. If all parameters are properly defined, a graph of the gain will appear. Tap the screen and the phase plot will appear. Tap again and the step response will be plotted. Finally, after another tap, a list of computed performance parameters will appear such as the natural frequency, resonance frequency, damping ratio, time constant and settling time.
Like it? Share with your friends!
Supported operating systems:
Palm OS 4.x, Palm OS 5.x
Similar Software:
PercentCalc PercentCalc - Percentage calculator:
# Percentage Increase
Returns to Formula
A + X% = B (or A-X% = B)
The third value when the other two values are known.
# Relationship Equation
Returns to Formula
A: 100% = B: X%.
The third value when the other two values are known
SynCalc SynCalc - * Fully algebraic infix calculator. * Support for unlimited number of nested parentheses and function calls. * Up to 100 user-defined shortcuts may be added or imported. * Real-time input and output functions. * Add new functions via the Synergy Plugin Architecture. - Includes Math, BaseConvertor, and Logic Plugins. * Fully-functional drag-and-drop editing
mobileCALC mobileCALC - mobileCALC provides a fully customizable calculator, operating in both algebraic and RPN modes. It is designed to function on any PalmOS device running OS 2 through 5. mobileCALC can provide unlimited conversion factors, constants, user programs etc., and the key layout can be tailored by the user to fit the users specific requirements
Sci-Calculator Sci-Calculator - Easy to use, Logical and intuitive interface. Calculates Math, Trigonometric, Hyperbolic and Inverse Hyperbolic functions. Made for Engineers, Scientists, Students and all others.
· Calculates Math, Trigonometric, Hyperbolic and Inverse Hyperbolic functions.
· Over 300 Fundamental Physical Constants included
MyCalcC (Palm OS) MyCalcC (Palm OS) - Create your own special function calculator! MyCalcC simulates a programmable scientific calculator on the PDA. The user can custom label buttons for four user supplied equations. Each equation can have four user labeled variables and two user labeled constants.
The number of program steps is only limited by the amount of available memory
TapeCalcCR (Palm OS) TapeCalcCR (Palm OS) is a powerful yet easy to use graphical simulation of a hardware calculator. Tapecalc can be used as a standard decimal calculator with 9 memories for general problem solving. An exclusive feature of TapeCalc is the simulation of a paper tape printout on one side of the Palm screen
Pearson Square Pearson Square - Provides an easy way to calculate mixtures of two ingredients.
Very useful in the fertilizer, animal feed, and sausage industries.
Animal Science and Veterinary students should also find it very useful
CHEMiCALC CHEMiCALC - This patented chemical calculator will save chemists and chemistry students time and reduce errors for many routine chemical calculations. Use and explore the Element Properties database and graph periodic trends of any one of 18 element properties
Other Software by developer «ADACS»:
PDAcalc units (PocketPC) PDAcalc units (PocketPC) is a conversion calculator that can quickly and easy translate different units of measure. It can translate days into seconds, Celsius into Fahrenheit, foreign currency into domestic currency, how many gallons a container of certain dimensions can hold, and much much more
PDAcalc matrix (PocketPC) PDAcalc matrix (PocketPC) - Use this calculator for your basic and linear algebra calculations. Using matrices allows you to perform far more powerful calculations with less instructions. Instead of using one value at the time use a matrix or vector containing hundreds of values. Features:
Uses same syntax as high-end mathematical programs like matlab
Left right intergration This program was used for a MAT 220 Calculus I class to compute left and right approximations of an intergral from A to B
ThinkDB2 CplxCalPro functions ThinkDB2 CplxCalPro functions - this database contains the description of all CplxCalPro functions, version 3.01
Chained reactions (CplxCalPro) Chained reactions (CplxCalPro) - The present document has been written as an introduction to the emulation of successive chained biochemical reactions with the CplxCalPro graphical calculator on a Palm platform.
The law which, in this instance, was assumed to link the variables is similar to other ones found in various fields of human knowledge