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Barrel Testing System (Part 2)

Systems equipped with modern weapons increasingly require maintenance inspection must take place on a regular basis, to ensure the accuracy and safety during use. For the artillery system, the regular inspection and maintenance of the barrel is always a very important task requiring high precision. To meet this demand, the world now has a number of manufacturers have been developing and testing systems to serve barrel test applications measuring the types of barrel from inside diameter measuring distortion, curvature, applications to measure the parameters of helical grooves, or defects in the barrel.

C. Calibration:

The first calibration is done by the manufacture. All parts of the system contain special features for self-diagnostic. However, the operator should do a periodic calibration once a year or more often if it is required. The system includes special calibration block, which allows checking instrument’s accuracy anytime and fixing calibration table if it is necessary. The calibration takes 10-15 minutes. All calibration processes are automatic.

The calibration block contains a caliber (see pictures), which is used to correlate the readings of the system with factory values in order to check the system's accuracy. The inner surface of the caliber emulates a plenty of pipes with different diameters in all working range. In order to calibrate, the probe should be inserted into the calibration block as it is showed on the picture below. The calibration starts automatically after pushing “Calibration” button.

D. Software

The main form

AREA AND FUNCTION

AREA	FIELDS/BUTTONS	FUNCTION
SECTION PROFILE		The area for showing the profile of a section
PROFILE MEASUREMENT		The area for showing the parameters of a section
Fields:	Inner diameter	Inner diameter The inner diameter in current
	Rifling diameter	The rifling diameter in current section
	Inner ovality	The inner ovality in current section
	Rifling ovality	The rifling ovality in current section
	Gap width	The gap width in current section
	Rifling width	The rifling width in current section
Buttons:	Start measure	To measure in current section
	Stop measure	To stop measuring
	Save result	Profiles saving into the file
	Protocol	To open the protocol form
	Calibrate	To open the calibration form
VIDEO INSPECTION
Lightning
Buttons:	Load preset	To load preset from the internal controller
	Save to preset	To load preset from the internal controller
	Channel 1/2/3	Fine and Rough tunes for lighting (separately for each from three channels)
	Connect video	To connect a video camera.
	Screenshot	To save a current shot to a database
	Capture	To start video capturing
	Full screen	Switch to full screen mode
	Exposure ROI	To change exposure
PROBE CONNECTION
(Buttons):	Connect	To connect with the probe
	Main on	To switch all the sensors on
	Exit	To exit from the program
PARAMETERS
(Fields):	Bore #	Bore # Number of the barrel
	Bore type	Type of the barrel
(Buttons):	Bore type edit	To open “Bore type” library
	Section step edite	To open “Section step” form
PROBE POSITIONING
(Fields):	Next section	Indication of next section position
	Probe position	Indication of current probe position
	Probe angle	Indication of current section angle
(Buttons):	Next section	To choose the next section in a manual mode
	Previous section	To choose the previous section in a manual mode
	Set Zero	To set logical O for OZ axis

The “Section step” form

AREA	FIELDS/BUTTONS	FUNCTION
SECTION STEP		The form for determination of macros in automatic mode
Fields:	First section	The first section to measure, mm
	Last section	The last section to measure, mm
	Step	The step between sections, mm
Buttons:	Update	To update the macros

The protocol form

AREA	FIELDS/BUTTONS	FUNCTION
PROTOCOL ARCHIVE		The list of all saved protocols
MEASURED VALUES		A chart showing an inner diameter for all the length of the barrel
SECTION PROFILE		A chart showing a barrel profile in the selected section (User can switch a circle chart as well)
	The table below	Showing all parameters of the barrel in selected section
(Buttons):	Delete protocol	To delete the selected protocol
	Print protocol	To print the selected protocol out
	Close	To close the form
	Screenshot	To show/print out a screenshot for the selected section
	Video stream	To play a video stream
	Gradient diagram	To show/print out a gradient diagram for the selected protocol

The protocol form (Zoom mode)

Source: RSI

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Barrel Testing System (Part 2)

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