The intent of this set of web pages is to provide a set of technical data and equations commonly used in engineering associated with high voltage, pulsed power, and power conditioning hardware.

Although every attempt has been made to correctly list these data and equations, some errors may still exist. If you believe that an error exists or if you have other suggestions, then please send an e-mail message including your name and suggestion to nessengr@san.rr.com

Web Page |
Description |

Attenuator Circuits |
Circuit and equations for T-pad, matched impedance, signal attenuators. |

Bare Copper Wire |
Diameter, cross-sectional area, weight per 1000 feet, and resistance per 1000 feet for solid bare copper wire from 0000 AWG to 56 AWG. |

Brooks Coil |
Equations related to calculating the inductance of a Brooks coil (the geometry typically associated with the highest inductance for a given length of wire). |

Capacitance |
Capacitance equations for common geometries (parallel plate and coaxial). |

Capacitor Lifetime |
Equations related to estimating capacitor lifetimes. |

Coaxial Cable |
Construction data on 35 commonly used coaxial cables including dielectric material, center conductor and shield makeup, outside diameter, nominal impedance, capacitance and inductance per foot, and RMS voltage rating. |

Diagnostics |
Equations related to pulsed power diagnostics (including current or b-dot loops, Rogowski coils, current transformers). |

Dielectric Materials |
Data associated with common dielectric materials. |

Field Enhancement |
Equations for the maximum electric field associated with eleven different common geometries. |

Fuse Equations |
Data and equations associated with conductor fusing (Preece's Law). |

Impedance |
Impedance equations for common geometries (parallel plate and coaxial). |

Inductance |
Inductance equations for common geometries (parallel plate, coaxial, and wire loop). |

Liquid Resistors |
Data associated with liquid resistor solutions (copper sulfate, ammonium chloride, sodium chloride, and sodium thiosulfate). |

Magnetic Materials |
Parameters associated with common magnetic materials. |

Magnetic Switching |
Equations related to magnetic switch design. |

Marx Generators |
Design details associated with Marx Generators. |

Mechanical Screws |
Mechanical screw thread data for both coarse and fine thread screws from size 0 to 1 inch including threads per inch, major and minor diameters, and lead angle. |

Physical Constants |
22 Fundamental physics constants. |

Pulse Forming Networks |
Equations related to Pulse Forming Network (PFN) design. |

RC Charging |
Equations related to RC charging (or discharging). |

References |
A list of valuable references and texts related to high voltage, pulsed power, and power conditioning. |

Resistivity |
Resistivity (in micro-ohm-cm and in ohms per million feet) and the temperature coefficient of resistance for 46 pure metals and 28 metal alloys. |

Resistor Color Code |
Standard resistor color code. |

Resistor Standard Values |
Standard resistor values for 0.1%, 0.25%, 0.5%, 1%, 2%, 5%, and 10% resistors. |

Resonant Charging |
Equations related to resonant charging (CLC charging from one capacitor to another). |

RLC Circuit |
Equations related to a series RLC circuit discharge. |

RMS and Average Values |
RMS and average values for 8 common waveforms. |

Rogowski Profile Electrodes |
Rogowski and other uniform electric field electrodes. |

Solenoid |
Equations to calculate the inductance of a solenoid. |

Skin Depth |
Equations to calculate the high frequency resistance of conductors due to skin effect. |

Splitter/Adder Circuits |
Circuit and equations for 3-5 port, matched impedance, signal splitter/adders. |

Surfaces and Volumes |
Equations to calculate the surface area and volume of 7 common geometries. |

Toroid |
Equations to calculate the inductance of a toroid. |

Transmission Line | Standard transmission line equations. |

Water Cooling | Equations to calculate the temperature rise of cooling water for a given flow rate and power dissipation. |

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Ness Engineering, Inc.

P.O. Box 261501

San Diego, CA 92196

(858) 566-2372

(858) 240-2299 FAX

© Richard M. Ness and Ness Engineering, Inc. |

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