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:
TriCalcC (Palm OS) TriCalcC (Palm OS) - combines three calculators or modes on one Pda screen. A decimal (feet) calculator, a Metric calculator (millimeters) and a feet-inches-sixteenths calculator. Three separate displays are provided to the user. Taping or clicking on the corresponding display button will instantly convert the previous display's value
Calculon Calculon is a combination of a unit/currency converter and standard calculator with 12 digits precision including trigonometric, exponential, logarithmic, date and temperature operations.
The latest currency rates can be updated from the internet either wirelessly (Treo 600/650, LifeDrive, etc) or via your desktop's connection with the provided conduit
CustomCalc CustomCalc is the most complete and user friendly financial and scientific calculator. It lets you place the function buttons that you use most right where you prefer them to be, so you can execute them in just one tap, or click.
Input mode may be RPN, or Algebraic
Motion This application is designed for calculations using distance, velocity, acceleration, time, mass, force, work, kinetic energy and power using eleven equations
Unc: A Units Calculator Unc: A Units Calculator - Unc is a calculator which runs on the 3Com PalmPilot. Unc has a number of features not often found in other calculators:
- Units. One of Unc's main features is its ability to calculate using units, like feet, miles, pounds, meters, seconds, and so on
WaveCalc WaveCalc is an ocean wave calculator for the Palm OS.
It will compute any wave parameter (e.g. frequency, wavelength, phase speed, ...) from any other.
Just type in a value in any field and hit the Calculate button.
The calculator supports both gravity and capillary wave modes.
WaveCalc is free.
The full source code is available on the author's web site
Wyrd Bin Wyrd Bin is a binary converter / calculator.
You can edit a value in binary, decimal and hexadecimal and immediately see the equivalent value in the other formats.
When editing the binary you can toggle the individual bits on / off.
There are 3 values to edit, you can then enter them into a formula and tap calculate to perform simple math
Feet & Inches Add-on for MathU Pro Feet & Inches Add-on for MathU Pro - Provides conversions/calculations (add, subtract, multiply and divide) with decimals of a foot to feet, inches, sixteenths and visa versa. Also includes a RISE, RUN, SLOPE, PITCH program to calculate the three sides of a triangle (in Ft.In16 format) and the angle of slope (degrees or Ft
Other Software by developer «ADACS»:
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
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
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
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