Hello to all,

Sun is finally getting higher and Spring does get the energy flowing again after the winter doldrums. The ZFM BiPolar switch has been refurbished and some initial test runs completed to verify the Bemf tests with the Cole Cemf circuit. The results are very close to the prior tests and do show the previous gains. Waiting on the other capacitors before finalizing these results.

In the interim I am posting a number of charts depicting the performance of the current ZFM model without the Cemf circuit. The Charts are as follows - apologize for the use of .pdf's.

The first chart depicts the motor input amperage versus torque load. These amperage values are simple way of describing how the motor behaves as the load is increased. You will note that this relationship is very linear with the amperage maximized at stall or zero RPM. The minimum amperage was at no load speed indicating the minimum draw created by friction, windage, etc. In all instances the ZFM was operated at 36 volts DC for consistency.

ZFM Chart1.pdf

The second Chart depicts the Output Power of the motor vs. Torque Load. The physical limits of the Torque testing device precluded data over the 900 gram point and below 250 grams, however the motor still had some good bottom end power, though unmeasured. The curve does demonstrate that the motor speed is very dependent on load for a given voltage. Varying the voltage can compensate for this inherent design trait and expand the usefulness of the ZFM.

ZFM Chart2.pdf

The third Chart depicts the Output Power vs RPM. One can expect the curve to further flatten out as the load is increased with the RPM continuing to drop. It does appear that there is a broad range of usable RPM.

ZFM Chart3.pdf

The fourth Chart depicts the motor Efficiency vs. Torque load and is, perhaps, the most interesting of the charts. The basic motor Efficiency appears to remain relatively constant over a wide range of Torque load.

ZFM Chart4.pdf

From a flexibility perspective the ZFM is able to respond to varying voltages as needed. The power output and input curves of the motor will shift to yield more speed and with more output based on higher voltage, the reverse is true for lower voltages.

Done with this segment, ready for tapping the maples...

Thank you for your attention!!!