Useful EMDrive Design and Test Tools: Difference between revisions

Revision as of 07:16, 22 June 2015

TheTraveller's Excel based EMDrive design tool, developed in cooperation with Roger Shawyer. <ref>EMDrive Design Tool</ref>

Shawyer's "Testing an EMDrive" is a very confused and confusing document.

Shawyer has successfully measured EMDrive thrust by:

1) Using a scale directly under or offset to one side of the EMDrive.

2) Using an overhead spring to offset some of the EMDrive weight on a scale under the EmDrive.

3) Using a knife edge Teeter Totter Balance Beam.

4) Using a rotary air bearing setup to directly measure acceleration and deceleration.

@@ Line 6: / Line 6: @@
 * '''Testing an EMDrive''' <ref>[http://www.emdrive.com/EmDriveForceMeasurement.pdf Measuring Thrust of an EmDrive]</ref>
-Please don't get confused by this "Testing an EMDrive" document. Note carefully what Shawyer says.
+Shawyer's "Testing an EMDrive" is a very confused and confusing document.
-"A number of methods have been used in the UK, the US and China to measure the
-forces produced by an EmDrive thruster. In each successful case, '''the EmDrive force
-'''data has been superimposed on an increasing or decreasing background force,'''
-generated by the test equipment itself.
-Indeed, in the UK '''when the background force changes were eliminated''', in an effort
-to improve force measurement resolution, '''no EmDrive force was measured'''. This
-was clearly a result of attempting to measure the forces on a fully static thruster,
-where T and R cancel each other.
-UK flight thruster measurements employ this principle to calibrate the background noise on the force balance prior to carrying out force measurements."