P. Kolen

San Diego State University | SDSU · Department of Electrical and Computer Engineering

A general procedure for the design of a miniaturized step up transformer to be used in the context of surface electrode based current/voltage pulse generation is presented. It has been shown that the optimum secondary current pulse width is 4.5 tau, where tau is the time constant associated with the pulse forming network associated with the transfo...

A general theoretical approach for the determination of the optimum pulsewidth used for TENS/EMS/FES is presented. Analysis based on the interaction between a step-up transformer-coupled nerve stimulator and an electrode-tissue load modelled as a simple lossy capacitive load results in excellent agreement between the predicted and measured performa...

Without Abstract

Described is a generalized technique for real-time gain and thermal compensation of embedded microcontroller-based sensor arrays. By incorporating a single or multiple low-cost, uncalibrated thermal sensor(s) into a software feedback loop, a self-normalized calibration/compensation table for each sensor can be generated and stored in EEPROM for lat...

A miniaturized absolute angle sensor utilizing Hall generators referenced to the Earth's ambient magnetic field has been developed. The sensor has three-dimensional angular sensitivity which allows the output to be self-normalized resulting in high immunity to both B-field and temperature induced errors. The individual Hall generator elements were...

A new experiment has been performed as a step toward settling an unresolved issue in the testing of the special theory of relativity. The experiment is a test for velocity or direction-dependent variation of the one-way speed of light due to particular motion of a light source and an observer. The apparatus consists of a novel type of RF bridge, in...

This PdF composed by myself (Hanna Edwards) contains a link for free access to the original publication by P. Kolen and D. G. Torr of the stated title and year. I am author of the PdF with this title which shares but 1 citation of which Paul Kolen and Doug Torr are the authors. I composed this document, because I cannot upload to researchgate wit...

In this paper we describe a propagation experiment to measure the one-way velocity of electromagnetic radiation. The experiment utilizes the rotation of the earth to interchange the positions of two rubidium vapor frequency standards over12 h, thereby canceling initial clock phase differences. It is demonstrated that although the drift characterist...

Several recent papers which purport to substantiate or negate arguments in favor of certain theories of absolute space have been based on fallacious principles. This paper discusses three related instances, indicating where misconceptions have arisen. It is established, contrary to popular belief, that the classical Lorentz ether theory accounts fo...