Introduction to Automatic System:

The automatic Vickers hardness measurement system integrates various new professional technologies such as optical imaging, mechanical displacement, electronic control, digital imaging, image analysis, and computer processing. It controls the Vickers hardness tester and automatic stage through a computer host, and digitizes the hardness indentation on the computer screen. Then, through automatic reading, manual reading and other means, it accurately measures the microhardness, nitride layer, carburizing layer, quenching hardening layer gradient, hardening layer depth, film layer thickness, two-point spacing, etc. of metal and some non-metallic materials and various film layers and coatings. It can also capture the surface morphology of metals and perform fixed magnification printing. This system breaks through the traditional hardness testing method and achieves semi-automatic, high-precision, and high repeatability hardness testing, making it an important equipment for material analysis.

1. Composition

In the automatic Vickers hardness measurement system, the computer host controls the operation of the Vickers hardness tester and receives corresponding information from the hardness tester through the RS232 serial port; The computer host controls the platform control box through the RS232 serial port and, through the platform control box, controls the movement of the automatic loading platform and receives corresponding information; The optical signal of the indentation made by the Vickers hardness tester is imaged on a computer monitor through a digital camera, and the Vickers hardness value is measured through automatic and manual readings. This system has the function of directly controlling the hardness tester host. At the same time, it has multiple hardness measurement methods such as automatic measurement and manual measurement, with high precision and good repeatability. The measurement results can be output in various formats such as WORD and EXCEL.

2. Main functions
System linkage: Through serial communication of the hardness tester, the system is linked with the hardness tester.
Pressure linkage: When the hardness tester test force is converted, the system senses the change in test force and displays it in real-time in the system.
Rotary tower linkage: The software controls the hardness tester to switch between the objective lens and the indenter, without the need for manual control of the hardness tester.
Loading linkage: The software controls the hardness tester to load, without the need for manual control of the hardness tester.

Auto focus: It can automatically complete auto focus. (Optional)
Measurement linkage: Software controls the turret of the hardness tester, loads and directly reads the Vickers hardness value.
Image acquisition: Real time display of hardness images, capable of storing and printing images.
Automatic measurement: Automatically identify the four vertices of the indentation, fast speed, accurate data, and multiple professional algorithms to apply to different indentations. Continuous testing, instant testing, and specified coordinate compression.
Automatic point finding: Take points near the four vertices of the indentation, and the system automatically finds the best vertex, greatly reducing human error.
Diagonal measurement: Point at the upper left and lower right corners of the indentation to read the hardness value.
Four point measurement: Take the four vertices of the indentation and read the hardness value.
Micro force measurement: Specially designed with professional functions, it can amplify the indentation under small pressure test forces (10gf, 25gf, 50gf) in real time without reducing resolution, improving measurement accuracy.
Hardness conversion: According to national standards or American standards, various hardness values such as Brinell Rockwell Vickers Knoop are automatically converted and displayed in real-time.
Graphic report: Automatically record measurement data, generate hardness depth curves, save or print hardness depth curves and all indentation measurement values. Save or print the indentation image and the current indentation hardness value. All reports are saved as WORD documents.


Result statistics: Export the measurement results of multiple indentations in EXCEL data format, and automatically calculate the number of measurements, hardness * * maximum value, * * minimum value, mean value, mean square error, etc.


3. Performance characteristics
Linkage control: The system senses changes in test force, controls the hardness tester turret, loads and directly reads through serial communication.
Automatic displacement: equipped with high-precision X-Y automatic platform.
Automatic recognition: The indentation automatic recognition technology of collar * reads D1/D2 and HV values within 0.3 seconds.
Stable performance: It can automatically read non mirror polishing, uneven lighting, and non center indentation.
Powerful features: manual reading, automatic reading, hardness conversion, depth hardness curve, indentation image, graphic and textual report functions.
Contour scanning: It can scan the entire contour of the product along the edge of the workpiece, making it convenient for operators to set paths or directly measure points.
Easy to use: calibrated through hardness blocks, in line with users' daily habits. After half a day of training, it can be used normally.
Automatic reading: With a unique automatic reading algorithm, it can automatically read multiple types of indentations with fast speed and high accuracy.

Good repeatability: The automatic reading has high repeatability, meeting the professional requirements of users.

Host parameters：
test force	gf	10gf, 25gf, 50gf, 100gf, 200gf, 300gf, 500gf, 1000gf
	N	0.098N, 0.246N, 0.49N, 0.98N, 1.96N, 2.94N, 4.90N, 9.80N
Hardness testing range		1HV-3000HV
test mode		HV/HK
Loading method		Direct digital control, automatic completion of loading and unloading test loads
Test force application method		Automatic (load/hold/unload)
Objective lens and indenter switching		Auto Switch
Exchange Scales		HK, HRA, HRB, HRC, HRD, HRE, HRF, HRG, HRK, HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, HS, HB
data output		Can generate WORD or EXCEL reports and hardness curve graphs
Hardness reading		The computer displays the indentation image and automatically measures it
objective lens		10 x (for observation), 40 x (for measurement)
eyepiece		10 x digital micrometer eyepiece
Total magnification factor		100×，400×
Eyepiece resolution		0.01μm
Eyepiece light conversion		automatic
Eyepiece * * Large measurement length		900um at 10x and 200um at 40x
Impression length digital display resolution		0.1μm
Hardness numerical display resolution		0.1HV
holding time		0~60s
light source		Halogen lamp light source
X-Y automatic test bench		Size: 110 × 110mm; Travel: 50 × 50mm; Resolution: 0.002mm
Sample * * Large height		100mm (customizable)
Distance from the center of the pressure head to the machine wall		98mm (customizable)
lighting		Adjustable brightness, using standard pulse width modulation (PWM) method to achieve true switch adjustment
power supply		AC220V，50Hz
execution standard		ISO 6507，ASTM E384，JIS Z2244，GB/T 4340.2
Overall dimensions		480 × 325 × 545mm, outer box size 600 × 360 × 800mm
machine weight		Net weight 31kg, gross weight 44kg

Standard configuration:
name	quantity	name	quantity
main unit of the instrument	1 unit	10 x digital micrometer eyepiece	1 piece
Diamond micro Vickers indenter	1 piece	10 x, 40 x objective lens	1 each
weight	6 of them	Weight axis	1 piece
Electric Cross Test Stand	1 piece	Thin film clamping table	1 piece
Flat mouth clamping table	1 piece	Fine wire clamping table	1 piece

Horizontal adjustment screw	4 pieces	level gauge	1 piece
Fuse 1A	2 of them	Halogen lamp 12V, 15~20W	1 piece
power cord	1 piece	screwdriver	2 of them
Standard hardness block 400~500 HV0.2	1 piece	Standard hardness block 700~800 HV1	1 piece
dust cover	1 piece	Optical adapter lens	1 piece
USB encryption dongle	1 unit	camera	1 piece
desktop computer	1 unit	inkjet printer	1 unit
CCD camera	1 set	Adaptation takeover	1 piece
software	1 set	USB cable	1 piece
Electric platform	1 piece	Electric platform controller	1 set