External tools: Rosette computation - Revision history

Lmagimel: /* Version history */

2026-04-10T09:01:47Z

Version history

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	! Version !! Date !! Changes		! Version !! Date !! Changes
	\|-		\|-
	\| 1.000b \|\| ~~2025~~-04 \|\| ~~Initial public~~ release. Supports rectangular (45°) and delta (60°/120°) rosettes. Compatible with NVGate V17 OSFF measurement format. Dark UI theme.		\| 1.000b \|\| 2026-04 \|\| Public release. Supports rectangular (45°) and delta (60°/120°) rosettes. Compatible with NVGate V17 OSFF measurement format. Dark UI theme.
	\|-		\|-
	\| — \|\| 2024-11 \|\| Internal prototype (oxf format, NVGate V12–V16)		\| — \|\| 2024-11 \|\| Internal prototype (oxf format, NVGate V12–V16)

Lmagimel at 09:01, 10 April 2026

2026-04-10T09:01:23Z

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	\|}		\|}

	~~----~~

	~~== See also ==~~

	* [[NVGate Player]]
	* [[External tools overview]]
	* [[Strain gauge measurement with NVGate]]
	* [[NVDrive — external tool communication protocol]]

	~~[[Category:External Tools]]~~
	~~[[Category:Signal Processing]]~~
	~~[[Category:Structural Analysis]]~~


	~~[[category:WikiOros]]~~
	~~Compute 2D main stress/strain values from rosette measurements~~

	~~Compatibility : NVGate V12 or upper~~

	A strain gauge rosette is a term for an arrangement of three strain gauges that are positioned closely together in order to measure strains along different directions in the component under test. Use of multiple strain gauges enables global stress amplitude and phase to be determined. The rosette add-on calculates this global stress from a rosette measurement.

	~~<youtube>https://youtu.be/V7l0hIy9GuM </youtube>~~

	~~== Downloading ==~~
	~~[https://partnerzone.digigram.com/s/XWTNNdendMPAkz4 Download here] april 2026 version<br>~~

	~~[https://orossas.sharepoint.com/:u:/g/support/EUkl9G7TJ8hHuK07QPWpom0BTq7YlxmyLAm98cvYldmoDg?e=3K6DeI NVGate: Demo signal to test]~~

	~~<font color="#34A9DC">'''Overview'''</font>~~

	~~"Rosette" tool is an NVGate Add-on to perform calculation of the angle / magnitude of the main stress from the rosette<nowiki>’</nowiki>s micro Strain :~~

	It is advised to copy the application add-on "RosetteAddon.exe" within theNVGat "Link" directory "C: \ OROS \ NVGate data \ Links". Thus, it will be possible to access it via the "Tools" tab of NVGate :
	~~[[File:Sans titre.png]]~~


	~~<font color="#34A9DC">'''How to use'''</font>~~

	This plugin works only on a signal already recorded, you must first load this signal in the player, then you can launch the plugin. Then you just need to fill in the configuration of the rosette, the corresponding inputs, the modulus of Young, Poisson Coeff and then compute. This may take some time depending on the size of the signal, even if the program "does not respond", wait for confirmation "Done" validating the correct operation.

	~~[[Image:Manual_-_Rosette_04.gif\|thumb\|none\|449px]]~~

	[[category:Manual - Rosette]]		[[category:Manual - Rosette]]

Lmagimel: /* Troubleshooting */

2026-04-10T09:01:01Z

Troubleshooting

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	----		----

	~~== Troubleshooting ==~~

	~~{\| class="wikitable" style="width:100%"~~
	\|-
	~~! Symptom !! Likely cause !! Solution~~
	\|-
	~~\| ''Error — no signal loaded in NVGate player'' \|\| NVGate Player is empty or paused at the beginning \|\| Load and play a signal in NVGate before launching the computation~~
	\|-
	~~\| ''Error — duplicate channel selection'' \|\| The same channel is selected for two or more gauges \|\| Select a distinct channel for each of ε A, ε B, ε C~~
	\|-
	~~\| ''Error — Young modulus is not a valid number'' \|\| Non-numeric text in the E field \|\| Enter a numeric value, e.g. <code>210e9</code> or <code>210000000000</code>~~
	\|-
	~~\| Channel dropdown is empty \|\| NVGate is not open, or measurement has no channels \|\| Ensure NVGate is running with a measurement loaded in the Player~~
	\|-
	~~\| Output measurement not visible in NVGate \|\| NVGate Project Manager not refreshed \|\| Click '''Refresh PM''' in NVGate, or close and reopen the project~~
	\|-
	~~\| Stress values seem too high \|\| Wrong unit for E (GPa entered instead of Pa) \|\| Enter E in '''Pascals''': 210 GPa = <code>210000000000</code> Pa~~
	\|-
	~~\| Angle output is always near zero \|\| Gauges A and C have nearly identical strain \|\| This is physically correct — it means the principal axis is nearly aligned with gauge A~~
	\|}

	~~----~~




	== Version history ==		== Version history ==

Lmagimel: /* Status bar */

2026-04-10T09:00:34Z

Status bar

@@ Line 135: / Line 135: @@
 # The tool reads the signal, computes the rosette, and writes a new measurement named '''<original_name>_rosette''' in the same NVGate project.
 # NVGate's Project Manager is refreshed automatically — the new measurement appears immediately.
 == Output measurement ==

Lmagimel: /* Installation */

2026-04-10T09:00:21Z

Installation

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	'''Note:''' The executable is self-contained — no Python installation or additional libraries are required on the target PC.		'''Note:''' The executable is self-contained — no Python installation or additional libraries are required on the target PC.

	~~----~~

	== Usage ==		== Usage ==

Lmagimel: /* Requirements */

2026-04-10T08:59:55Z

Requirements

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	! Item !! Requirement		! Item !! Requirement
	\|-		\|-
	\| NVGate version \|\| ~~V12~~ or higher ~~(V17+ recommended for OSFF format)~~		\| NVGate version \|\| V17 or higher
	\|-		\|-
	\| Signal format \|\| OSFF measurement directory (NVGate V17+) or legacy .oxf		\| Signal format \|\| OSFF measurement directory (NVGate V17+) or legacy .oxf
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	\| Signal type \|\| Time-domain (static or dynamic channels)		\| Signal type \|\| Time-domain (static or dynamic channels)
	\|-		\|-
	\| Number of input channels \|\| ~~Exactly~~ 3 strain gauge channels (any sampling rate)		\| Number of input channels \|\| 3 strain gauge channels (any sampling rate)
	\|-		\|-
	\| Operating system \|\| Windows 7 / 10 / 11 (32-bit Python runtime bundled)		\| Operating system \|\| Windows 7 / 10 / 11 (32-bit Python runtime bundled)

Lmagimel at 08:58, 10 April 2026

2026-04-10T08:58:58Z

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 <youtube>https://youtu.be/V7l0hIy9GuM </youtube>
 == Principle ==
@@ Line 218: / Line 231: @@
 ----
 == Version history ==

Lmagimel at 08:56, 10 April 2026

2026-04-10T08:56:10Z

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	~~<youtube>https://youtu.be/V7l0hIy9GuM </youtube>~~

	~~Rosette Computation — External Tool~~

	The '''Rosette Computation''' tool is a standalone NVGate add-on that transforms raw strain gauge rosette signals into principal stress and principal stress angle time histories. It reads a time-domain measurement directly from the NVGate Player, performs the Mohr's circle computation sample by sample, and writes a new measurement back into the same NVGate project — ready to be analysed, displayed or exported like any other signal.		The '''Rosette Computation''' tool is a standalone NVGate add-on that transforms raw strain gauge rosette signals into principal stress and principal stress angle time histories. It reads a time-domain measurement directly from the NVGate Player, performs the Mohr's circle computation sample by sample, and writes a new measurement back into the same NVGate project — ready to be analysed, displayed or exported like any other signal.

			<youtube>https://youtu.be/V7l0hIy9GuM </youtube>

	== Principle ==		== Principle ==

Lmagimel: /* Rosette Computation — External Tool */

2026-04-10T08:55:54Z

Rosette Computation — External Tool

← Older revision		Revision as of 10:55, 10 April 2026
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	<youtube>https://youtu.be/V7l0hIy9GuM </youtube>		<youtube>https://youtu.be/V7l0hIy9GuM </youtube>

	= Rosette Computation — External Tool =		Rosette Computation — External Tool

	The '''Rosette Computation''' tool is a standalone NVGate add-on that transforms raw strain gauge rosette signals into principal stress and principal stress angle time histories. It reads a time-domain measurement directly from the NVGate Player, performs the Mohr's circle computation sample by sample, and writes a new measurement back into the same NVGate project — ready to be analysed, displayed or exported like any other signal.		The '''Rosette Computation''' tool is a standalone NVGate add-on that transforms raw strain gauge rosette signals into principal stress and principal stress angle time histories. It reads a time-domain measurement directly from the NVGate Player, performs the Mohr's circle computation sample by sample, and writes a new measurement back into the same NVGate project — ready to be analysed, displayed or exported like any other signal.

	~~[[File:RosetteAddon_screenshot.png\|thumb\|right\|400px\|Rosette Computation add-on — main window]]~~

	~~----~~

	== Principle ==		== Principle ==

Lmagimel at 08:55, 10 April 2026

2026-04-10T08:55:34Z

← Older revision		Revision as of 10:55, 10 April 2026
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	~~{{Addon~~		<youtube>https://youtu.be/V7l0hIy9GuM </youtube>
	~~\| name = Rosette Computation~~
	~~\| version = 1~~.~~000b~~
	~~\| compatibility = NVGate V12 and above~~
	~~\| author = OROS~~
	~~\| category = Signal Processing~~
	}}

	= Rosette Computation — External Tool =		= Rosette Computation — External Tool =