What is universal system of units?

Answer 1

Start with a goal, or what you want to accomplish. Next, gather your inputs, or materials that will be needed. Identify the process that will use the inputs. Create an output, or what you were after with the goal. Finish with feedback on the entire thing. 5 Steps, sometimes seen as 4 without the "Goal" step. Example: I want a moon buggy (goal). I need money, engineers, and material (input). I need to create the buggy in a factory that makes them (process). My moon buggy is complete (output). I thought my engineers were slow (feedback).

Answer 2

It is a system of units that deletes confusions in the SI system of units.

According to many scientists; there are some redundancies in the SI system of units. Through an entropy approach that depends on a previous analogy between the electrical, mechanical and thermal fields; it was possible to introduce an approach to a system of units that removes such redundancies. According to the second law of thermodynamics; the temperature was defined as a quality of heat. The followed analogy considers the electrical and magnetic potentials also as qualities of electric and magnetic fields. According to published experimental results; the electric and the magnetic potentials generates electromotive forces that are measured in Volt by Al-Fe thermocouples similar to the E.M.F. generated by the temperature difference in thermocouples. The chemical potential or the concentration gradient generates also an EMF that was measured here by the Al-Fe thermocouple. Such measured E.M.F. in volts is approved as a unique dimensionless scale and unit for measuring the potentials or qualities of the electric and magnetic fields in addition to the thermal and chemical potentials. So; a universal system of units that is based only on three dimensions; E, L, and T, and four fundamental units; Joule, meter, second and volt is introduced in this paper to solve SI redundancies. The energy replaces the mass as a fundamental unit in the introduced US as it plays a dominant role in most of the scientific and engineering fields. The ampere is not included as a fundamental unit since the charge is considered as a form of energy that has the Joule as a fundamental unit. The candela and the mole were also not considered as fundamental units as they can be related to the selected fundamental units by appropriate numbers. The limited number of dimensions in the introduced US simplifies the application of the "π" dimensional theorem to find plausible relations between the main parameters that characterize many physical phenomena as the energy conversions and interactions.

According to the SI system of units; you find the following conflicts in measuring the analogue parameters in the electric and magnetic fields

Magnetic

quantity

Electric

quantity

magneto-motive force Amp

electromotive force Volt

magnetic field strength Amp/m

electric field strength V/m

permeability kg m/sec2/Amp2

conductivity Sec3Amp2 /kg/m3

magnetic flux
m2 kg/sec2/Amp

current Amp

magnetic flux density kg/sec2/Amp

current density Amp/m2

reluctance Amp2 / m2 kg / sec2

resistance
m2kg/sec3/Amp2

Following the Universal system of units that considers only three fundamental units, we find the following homogenity in the analogous fields:

Table 2. Electric / Magnetic Fields analog in the US system.

Magnetic

quantity

Electric

quantity

magneto-motive force Volt

electromotive force Volt

magnetic field strength Volt/m

electric field strength V/m

permeability W / m V

Conductivity W / m V

magnetic flux
W

Current W

magnetic flux density W / m2

Current density W / m2

reluctance V / W or Ω

Resistance V / W or Ω

The basic derivation of such system of units is completely explained in the following paper:

S. Abdelhady, "An Approach to a Universal System of Units" "J. Electromagnetic Analysis & Applications", March, 2010, 2: pp.549-556