Perform general magnetic formulas and conversions.

This screen helps the operator perform the Transformer calculations of Turns Ratio, Voltage, the Current and Impedance conversions for the Turns Ratio calculations. The Core Area calculation determines the Core Area and it’s power handling. Finally the Primary Turns needed to input the magnetic field for a necessary number of turns to achieve.

Enter three knowns to calculate the unknowns. That is; enter V1, V2 and Z1 to calculate Z2. This will work for the others as well. One feature is to enter any two for one parameter and one each for the others to calculate the rest all at once. Then press “Calculate” to get the Turns, Voltage Current or Impedance in Ohms. Press “Clear” to clear the coefficients and begin over. Press the “Close” button to quit the screen and go back to main menu.

Enter the power in Watts and the Frequency of operation in Hz and then press “Calculate” to get the Area necessary to handle load in Inches Square. Press “Clear” to clear the coefficients and begin over. Press the “Close” button to quit the screen and go back to main menu.

Enter Primary Voltage in Volts, Core Area in inches square, Flux of field in Gauss and the Frequency of operation in Hz and then press “Calculate” to get the number of turns necessary to achieve the power and coupling. Press “Clear” to clear the coefficients and begin over. Press the “Close” button to quit the screen and go back to main menu.

Figure 31 – Magnetics Transformers

Enter any two of the inputs to calculate the others and then press “Calculate” to get the remaining parameters. For instance enter colts and current and it will calculate the resistance power and work. Enter the motor-generator efficiency of work to power. Default efficiency is 90% (typical efficiency modern day). Press “Clear” to clear the coefficients and begin over. Press the “Close” button to quit the screen and go back to main menu.

Figure 32 – Magnetics Power and Work

In this screen are the calculations of Magnetic Law, Single Layer Coil and Multi-Layer Coil.

If the Flux option is selected the variables are Magneto Motive Force or MMF, lines per cm and the reluctance in Reluctance (Rels). Enter any two of the inputs to calculate the others and then press “Calculate” to get the remaining parameters. Press “Clear” to clear the coefficients and begin over. Press the “Close” button to quit the screen and go back to main menu.

Figure 33 – Magnetic Calculations Flux

If the Flux Density option is selected the variables are lines per cm, permeability (u) as relative to free space relativity, and the MMF. Enter any two of the inputs to calculate the others and then press “Calculate” to get the remaining parameters. Press “Clear” to clear the coefficients and begin over. Press the “Close” button to quit the screen and go back to main menu.

Figure 34 – Magnetic Calculations Flux Density

Used to perform the basic Inductance calculations for Single and Multi layer Air Coils and Toroidal inductors.

Enter the inputs Inner Radius and the Length all in cm and the number of turns and press “Calculate” to calculate the Inductance in micro Henries. Press “Clear” to clear the coefficients and begin over. Press the “Close” button to quit the screen and go back to main menu.

Enter the inputs Inner Radius1, Outer Radius2, the Length all in cm and the number of turns and press “Calculate” to calculate the Inductance in micro Henries. Press “Clear” to clear the coefficients and begin over. Press the “Close” button to quit the screen and go back to main menu.

This function can figure the Inductance of a Toroidal Coil either if two ways. One can use the inductance Factor from manufacturers data sheets, or you can find the Inductance Index from the Area, Outer Radius and the Permeability of the toroid. Enter the Area in Cm Square, the Outer Radius in cm, and for the permeability with the check box checked select the appropriate factor and material, if check box is unchecked user must enter the permeability factor in text box.

Next enter the number of turns and press “Calculate” to figure the Inductance Index and the final Inductance. As an additional feature, if just the Inductance Index is used, the user can input any of Inductance Index, Number of Turns or the Inductance. Leave any one blank and “Calculate” will figure the missing component. Press “Clear” to erase all boxes and set to default the permeability. Press “Close” to close the form and return to the main menu.

Figure 35 - Magnetics Inductance

This section performs magnetic unit conversions. Enter any entry or all, as I have, and get the conversion for whichever fields have entries. I entered all 1’s in the right hand side and got the conversion factors on the other. Press “Calculate” to perform calculation, “Clear” to clear all fields and “Close” to close the Magnetics Window.

Figure 36 - Magnetic Unit Conversions

Need to finish testing and checking and document in this section.

This section will perform the calculation of a Cylindrical Coils Magnetic Field and more. I selected the appropriate button radio selection “Cylindrical Coil”. I also checked the check box that will used the predefined magnetic permeability in the pull down combo box. I have most used values in table. Unchecking the box will allow the user to input any value permeability. The user can also add to the lookup table by editing the INI file. Please read notes regarding editing this file. Next the user enters the Radius, Coil Length, Number of Turns, Current flowing thru and the over all Magnetic Field Path Length (i.e. closed circuit like transformer/motor. Press “Calculate” to perform calculation, “Clear” to clear all fields and “Close” to close the Magnetics Window.

Figure 37 – Magnetic Field for Cylindrical coils

This section will perform the calculation of a Toroidal Coils Magnetic Field and more. I selected the appropriate button radio selection “Toroidal Coil”. I also checked the check box that will used the predefined magnetic permeability in the pull down combo box. I have most used values in table. Unchecking the box will allow the user to input any value permeability. The user can also add to the lookup table by editing the INI file. Please read notes regarding editing this file. Next the user enters the (Inner) Radius, Outer Radius, Coil Length, Number of Turns, and Current flowing thru. Press “Calculate” to perform calculation, “Clear” to clear all fields and “Close” to close the Magnetics Window.

Figure 38 - Magnetic Field for Toroidal Coils

This section will perform the calculation of a Rectilinear Coils Magnetic Field and more. I selected the appropriate button radio selection “Rectilinear Coil”. I also checked the check box that will used the predefined magnetic permeability in the pull down combo box. I have most used values in table. Unchecking the box will allow the user to input any value permeability. The user can also add to the lookup table by editing the INI file. Please read notes regarding editing this file. Next the user enters the Radius, Coil Length, Number of Turns, Current flowing thru and the over all Magnetic Field Path Length (i.e. closed circuit like transformer/motor. Press “Calculate” to perform calculation, “Clear” to clear all fields and “Close” to close the Magnetics Window.

Figure 39 - Magnetic Field for Rectangular Coils and Transformers

This section is for computing the equivalence of force and magnetic fields. In the Single wire case it will figure force to field or field to force. In the case of Motor and Generators it will estimate the current, voltage and force needed or generated for a motor or generator.

This screen contains the function to figure the Force a Wire in a magnetic field has or can figure from the Force the missing component of the field makeup. Theta defaults to 90 degrees – max force. All the other inputs can be entered and whichever is missing will be figured. That is enter any of the Flux in Tesla, Length of the wire in cm Current in Amps and/or the Force and press “Calculate” to figure the missing component. Press “Clear” to clear the fields, and “Close” to close the screen.

Figure 40 – Magnetics Electro Mechanics Single Wire Force

Still under development