Iulian Berca - Revision history

Sfrank at 19:33, 8 June 2015

2015-06-08T19:33:33Z

← Older revision		Revision as of 12:33, 8 June 2015
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	== Experimental Setup ==		== Experimental Setup ==
	Iulian Berca built a copper ~~fustrum~~ with dimensions similar to the device tested by NASA Eagleworks in 2014 and 2015. He powered this device with a 800-1200W magnetron directly inserted into the ~~fustrum~~. He originally tested this in a horizontal orientation suspended from fishing line, hoping to visually detect thrust. He then changed his testing setup to hang the ~~fustrum~~ from a balance arm resting on a microgram scale. Thrust was then detected based on changes in the weight measured by the scale.		Iulian Berca built a copper frustum with dimensions similar to the device tested by NASA Eagleworks in 2014 and 2015. He powered this device with a 800-1200W magnetron directly inserted into the frustum. He originally tested this in a horizontal orientation suspended from fishing line, hoping to visually detect thrust. He then changed his testing setup to hang the frustum from a balance arm resting on a microgram scale. Thrust was then detected based on changes in the weight measured by the scale.

	== Test Results ==		== Test Results ==

	Berca's first two tests were inconclusive, as thrust was not visually detectable. In test #3, thrust was detected with the ~~fustrum~~'s direction of motion oriented up (small end up). In test 3.1 he reversed the orientation (small end down) and again detected thrust.		Berca's first two tests were inconclusive, as thrust was not visually detectable. In test #3, thrust was detected with the frustum's direction of motion oriented up (small end up). In test 3.1 he reversed the orientation (small end down) and again detected thrust.

	On the forum a number of [http://forum.nasaspaceflight.com/index.php?topic=37642.msg1384716#msg1384716 possible error sources] have been mentioned, that could affect these results. They include:		On the forum a number of [http://forum.nasaspaceflight.com/index.php?topic=37642.msg1384716#msg1384716 possible error sources] have been mentioned, that could affect these results. They include:
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	== Future Plans ==		== Future Plans ==

	Berca is currently modifying the ~~fustrum~~ to include an adjustable plate on the small end similar to Shawyer's demonstration unit (though without the motor; adjustments will be made manually). He will then retest multiple times to find what length provides optimal thrust.		Berca is currently modifying the frustum to include an adjustable plate on the small end similar to Shawyer's demonstration unit (though without the motor; adjustments will be made manually). He will then retest multiple times to find what length provides optimal thrust.

	== References ==		== References ==
	<references/>		<references/>
	http://www.masinaelectrica.com/emdrive-independent-test/		http://www.masinaelectrica.com/emdrive-independent-test/

127.0.0.1 at 01:16, 5 June 2015

2015-06-05T01:16:43Z

← Older revision		Revision as of 18:16, 4 June 2015
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	Romanian engineer Iulian Berca began EmDrive experiments in May, 2015. After the invention of the EM Drive by Roger Shawyer, Iulan Berca was the first independent ~~electrical~~ engineer to fabricate a working EmDrive and successfully record force from the device.		Romanian electrical engineer Iulian Berca began EmDrive experiments in May, 2015. After the invention of the EM Drive by Roger Shawyer, Iulan Berca was the first independent engineer to fabricate a working EmDrive and successfully record force from the device.

	== Experimental Setup ==		== Experimental Setup ==

127.0.0.1 at 01:16, 5 June 2015

2015-06-05T01:16:09Z

← Older revision		Revision as of 18:16, 4 June 2015
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	Romanian engineer Iulian Berca began EmDrive experiments in May, 2015. After the invention of the EM Drive by Roger Shawyer, Iulan Berca was the first independent electrical engineer to fabricate a working EmDrive and successfully record ~~thrust~~ from the device.		Romanian engineer Iulian Berca began EmDrive experiments in May, 2015. After the invention of the EM Drive by Roger Shawyer, Iulan Berca was the first independent electrical engineer to fabricate a working EmDrive and successfully record force from the device.

	== Experimental Setup ==		== Experimental Setup ==

127.0.0.1 at 23:36, 4 June 2015

2015-06-04T23:36:24Z

← Older revision		Revision as of 16:36, 4 June 2015
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	Romanian engineer Iulian Berca began EmDrive experiments in May, 2015. He was the first ~~amateur experimenter~~ to fabricate a working EmDrive and ~~sucessfully~~ record thrust from the device.		Romanian engineer Iulian Berca began EmDrive experiments in May, 2015. After the invention of the EM Drive by Roger Shawyer, Iulan Berca was the first independent electrical engineer to fabricate a working EmDrive and successfully record thrust from the device.

	== Experimental Setup ==		== Experimental Setup ==

Saucyjack: /* Test Results */

2015-06-04T16:57:07Z

Test Results

← Older revision		Revision as of 09:57, 4 June 2015
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	Also see [[Possible_Error_Sources]] for general EM Drive discussion of error sources, not specific to this ~~particularsetup~~.		Also see [[Possible_Error_Sources]] for general EM Drive discussion of error sources, not specific to this particular setup.

	== Future Plans ==		== Future Plans ==

Saucyjack: /* Test Results */

2015-06-04T16:56:57Z

Test Results

← Older revision		Revision as of 09:56, 4 June 2015
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	* Forces between wires connected to the frustum and wires that are not		* Forces between wires connected to the frustum and wires that are not

	Also see [[Possible_Error_Sources]] for discussion of error sources, not specific to this ~~setup~~.
			Also see [[Possible_Error_Sources]] for general EM Drive discussion of error sources, not specific to this particularsetup.

	== Future Plans ==		== Future Plans ==

Saucyjack: /* Test Results */

2015-06-04T16:55:23Z

Test Results

← Older revision		Revision as of 09:55, 4 June 2015
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	* Thermal buckling causing a shift in the COM		* Thermal buckling causing a shift in the COM
	* Forces between wires connected to the frustum and wires that are not		* Forces between wires connected to the frustum and wires that are not

			Also see [[Possible_Error_Sources]] for discussion of error sources, not specific to this setup.

	== Future Plans ==		== Future Plans ==

Saucyjack: Added list of possible error sources, with forum link

2015-06-04T16:51:42Z

Added list of possible error sources, with forum link

← Older revision		Revision as of 09:51, 4 June 2015
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	Berca's first two tests were inconclusive, as thrust was not visually detectable. In test #3, thrust was detected with the fustrum's direction of motion oriented up (small end up). In test 3.1 he reversed the orientation (small end down) and again detected thrust.		Berca's first two tests were inconclusive, as thrust was not visually detectable. In test #3, thrust was detected with the fustrum's direction of motion oriented up (small end up). In test 3.1 he reversed the orientation (small end down) and again detected thrust.

			On the forum a number of [http://forum.nasaspaceflight.com/index.php?topic=37642.msg1384716#msg1384716 possible error sources] have been mentioned, that could affect these results. They include:

			* Material ablation/ejection
			* Thermal convection outside of the cavity from heated walls
			* The force of the spring on Iulian's torque arm
			* Accumulating errors in the digital scale from rf exposure
			* Thermal buckling causing a shift in the COM
			* Forces between wires connected to the frustum and wires that are not

	== Future Plans ==		== Future Plans ==

Sfrank: Added basic info on Iulian's tests. Will add more concrete data later.

2015-06-01T16:27:05Z

Added basic info on Iulian's tests. Will add more concrete data later.

New page

Romanian engineer Iulian Berca began EmDrive experiments in May, 2015. He was the first amateur experimenter to fabricate a working EmDrive and sucessfully record thrust from the device.

== Experimental Setup ==
Iulian Berca built a copper fustrum with dimensions similar to the device tested by NASA Eagleworks in 2014 and 2015. He powered this device with a 800-1200W magnetron directly inserted into the fustrum. He originally tested this in a horizontal orientation suspended from fishing line, hoping to visually detect thrust. He then changed his testing setup to hang the fustrum from a balance arm resting on a microgram scale. Thrust was then detected based on changes in the weight measured by the scale.

== Test Results ==

Berca's first two tests were inconclusive, as thrust was not visually detectable. In test #3, thrust was detected with the fustrum's direction of motion oriented up (small end up). In test 3.1 he reversed the orientation (small end down) and again detected thrust.

== Future Plans ==

Berca is currently modifying the fustrum to include an adjustable plate on the small end similar to Shawyer's demonstration unit (though without the motor; adjustments will be made manually). He will then retest multiple times to find what length provides optimal thrust.

== References ==
<references/>
http://www.masinaelectrica.com/emdrive-independent-test/