Difference between revisions of "Useful EMDrive Design and Test Tools"

From EM Drive
Jump to: navigation, search
(Roger Shawyer's EMDrive Design: Added link to earlier spreadsheet version)
 
(19 intermediate revisions by 4 users not shown)
Line 1: Line 1:
* TheTraveller's Excel based EMDrive design tool, developed in cooperation with Roger Shawyer. <ref>[http://s000.tinyupload.com/index.php?file_id=91209150771293536709 EMDrive Design Tool]</ref>
+
== Simulations ==
* 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.
+
See details of using [[MEEP]] for simulations.
  
"A number of methods have been used in the UK, the US and China to measure the
+
== Roger Shawyer's EMDrive Design ==
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
+
TheTraveller's [https://www.dropbox.com/s/u6v90c5yb050u52/EMDriveCalc20150809a.xlsx?dl=1 EMDrive design spreadsheet], developed in cooperation with Roger Shawyer, last updated 8/11/15.  Earlier 6/17/15 version available [http://s000.tinyupload.com/index.php?file_id=91209150771293536709 here].
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."
+
[[File:how_to_use_the_spreadsheet.png]]
  
  
Shawyer has successfully measured EMDrive thrust by:
+
* '''Testing an EMDrive''' <ref>[http://www.emdrive.com/EmDriveForceMeasurement.pdf Measuring Thrust of an EmDrive]</ref>
 +
 
 +
Shawyer ''claims'' to have successfully measured EMDrive thrust by:
  
 
'''1) Using a scale directly under or offset to one side of the EMDrive.'''
 
'''1) Using a scale directly under or offset to one side of the EMDrive.'''
  
[[File:ShawyerOffsetScale.jpg|300pix]]
+
[[File:ShawyerOffsetScale.jpg]]
  
  
Line 37: Line 32:
  
 
[[File:ShawyerRotaryTestRig.jpg]]
 
[[File:ShawyerRotaryTestRig.jpg]]
 +
 +
None of Shawyer's publications have been ever published in peer-reviewed journals.  What Shawyer claims to be EM Drive force measurements could be the result of experimental artifacts.  According to the scientific method, replication of his experiments need to be performed at many scientific institutions to confirm or nullify his claims.
  
 
== References ==
 
== References ==
 
----
 

Latest revision as of 06:59, 24 August 2015

Simulations

See details of using MEEP for simulations.

Roger Shawyer's EMDrive Design

TheTraveller's EMDrive design spreadsheet, developed in cooperation with Roger Shawyer, last updated 8/11/15. Earlier 6/17/15 version available here.

How to use the spreadsheet.png


  • Testing an EMDrive [1]

Shawyer claims to have successfully measured EMDrive thrust by:

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

ShawyerOffsetScale.jpg


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

ShawyerSpringOverAScale.jpg


3) Using a knife edge Teeter Totter Balance Beam.

ShawyerBalanceBeam.jpg


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

ShawyerRotaryTestRig.jpg

None of Shawyer's publications have been ever published in peer-reviewed journals. What Shawyer claims to be EM Drive force measurements could be the result of experimental artifacts. According to the scientific method, replication of his experiments need to be performed at many scientific institutions to confirm or nullify his claims.

References