AHVST-1000ZXY Fully Automatic Computerized Micro-Vickers Hardness Tester
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Description
Product Introduction:
Fully automatic microhardness testers are primarily used to measure tiny, thin specimens and brittle materials. By selecting various accessories or upgrading different components, they can be widely applied to a broad range of metals—including ferrous and non‑ferrous alloys, castings, and alloyed materials—as well as to metal microstructures, surface‑treated layers, electroplated coatings, hardened layers (such as oxides, various diffusion‑hardened layers, and coating layers), heat‑treated samples, carburized specimens, quenched parts, and minute regions containing phase inclusions. They are also suitable for testing brittle, hard non‑metallic materials such as glass, agate, synthetic gemstones, and ceramics. These instruments are particularly well suited for determining hardness gradient profiles in large batches of workpieces and for performing hardness measurements at specified locations.
Equipped with an automated translation stage driven by a built-in stepper motor and controlled via mouse clicks, it offers versatile control modes, high positioning accuracy, excellent repeatability, rapid travel speeds, and enhanced operational efficiency.
1. Introduction
The fully automatic micro‑Vickers hardness tester integrates a range of advanced technologies, including optical imaging, mechanical displacement, electronic control, digital imaging, image analysis, and computer processing. It uses a host computer to control both the Vickers indenter and the automated stage, digitizing the hardness indentation and displaying it on the screen. Through automated and manual readings, it accurately measures the microhardness of metals and certain non‑metallic materials, as well as the depth of hardened layers, the thickness of coating films, and the distance between two points. The system can also capture surface topography and produce fixed‑magnification prints. By breaking away from conventional hardness‑testing methods, this system delivers fully automated, high‑precision, and highly repeatable measurements, making it an essential tool for materials analysis.
2. Composition
The computer host controls the hardness tester’s operations and receives its feedback via an RS‑232 serial port; it also interfaces with the stage control box, which in turn drives the automated sample stage and relays relevant data. The optical signal from the indentation produced by the Vickers hardness tester is captured by a digital camera and displayed on the computer monitor, after which the Vickers hardness value is determined through both automatic and manual readings.
Main uses and scope of application:
1. Steel, nonferrous metals, metal foils, cemented carbides, metal sheets, microstructure
2. Carburized, nitrided and decarburized layers, surface-hardened layers, electroplated layers, and coatings
3. Glass, wafers, ceramic materials
Main features:
Micro Hard degree Calculation |
Test force range: 10 g–1 kg; test force units are switchable between kgf and N. The optical system, designed by optical engineers, delivers crisp images and can also function as a simple microscope, with adjustable brightness for comfortable viewing and reduced eye strain during prolonged use. A 7-inch LCD touch screen provides intuitive display of hardness values, conversion factors, testing methods, applied load, dwell time, number of measurements, and an easily understandable test‑procedure overview. The system includes built-in calibration, allowing manual adjustment to correct input errors. Users can set upper and lower measurement limits, which are displayed on the main interface. Loading method: fully automatic. Objective‑stage and indenter switching: fully automatic. Objective and indenter centering accuracy is better than 1 µm. The cast‑aluminum housing is formed in a single piece, ensuring structural stability and resistance to deformation; its high‑grade, pure white automotive‑grade finish offers excellent scratch resistance. Measurement results are simultaneously converted into Rockwell, Vickers, and Brinell scales. | |||||
| Standard configuration: | Micro-Vickers indenter | 1 piece | 10X objective lens | 1 piece | 40X objective lens | 1 piece |
| Weight | 6 pieces | Weight rod | 1 piece | 10 × Micrometer eyepiece | 1 piece | |
| Micro-Vickers hardness block | 2 pieces | Electric Cross Table | 1 piece | Slice holder stage | 1 piece | |
| Flat-Clamp Holder | 1 piece | Filament holder stage | 1 piece | Level gauge | 1 piece | |
| Leveling screw | 4 pieces | Screwdriver | 2 pieces | External power cable | 1 piece | |
| Dust cover | 1 piece | Installation and Operation Manual | 1 serving | Optical adaptation lens | 1 piece | |
| USB dongle | 1 piece | Camera | 1 piece | Software CD | 1 piece | |
| Control-specific cable | 1 piece | RS232 communication cable | 1 piece | Electric platform controller | 1 piece | |
| Software Configuration: | ||||||
| XY Sample Movement Control | Provides an XY electrically driven sample stage: controllable via software or adjustable manually; the X and Y axes can move simultaneously; fine adjustments can be made with the keyboard arrow keys for precise positioning. | |||||
| XYZ Remote Sensing | XY Electrically Driven Sample Stage | |||||
| Loading Mode and Path Settings | Provides multiple loading modes, including along‑line, edge‑angle, and curve‑edge angle; the coordinates of the load point can be set arbitrarily. | |||||
| Automatic Edge Scanning | Automatically scan along the sample edge and automatically detect inflection points, such as the tooth tip and tooth root. | |||||
| Automatic loading, focusing, and measurement | The system automatically focuses, loads, and measures according to the preset loading mode, and it also automatically generates the hardening curve—all with a single click. | |||||
| Hardness value conversion, correction, and valid verification | The system can simultaneously convert measured micro‑Vickers hardness values into multiple other hardness scales, such as HB and HR; it can correct measurements taken on spherical and cylindrical specimens; and it can perform reliable verification of the measured values. | |||||
| Data Statistics | Automatically calculates statistical metrics such as the average hardness, variance, Cp, and Cpk. | |||||
| Data storage | Measurement data and images can be saved in a single document for later retrieval. | |||||
| Test Report | Automatically generate WORD or EXCEL document reports; users can customize report formats; standard formats include individual hardness measurement values, statistical data, indentation images, and hardening curves, among others. | |||||
| Vickers hardness | Can be set to Knoop hardness measurement. | |||||
| Fracture toughness | It can be set to measure indentation fracture toughness. | |||||
| Other features | Includes all functions of a microscopic image processing and measurement system, such as image acquisition, calibration, image processing, geometric measurement, document annotation, album management, and magnification‑based printing. | |||||
| computer | Lenovo Commercial Computers | |||||
Technical Specifications:
| Pressure control | During the conversion of test force in a hardness tester, the system detects changes in the test force and displays them in real time. | |
| Turret Control | The software controls the hardness tester to automatically switch between the objective lens and the indenter, eliminating the need for manual operation. | |
| Load Control | The software controls the hardness tester to apply the load, eliminating the need for manual operation. | |
| Measurement and Control | The software controls the hardness tester turret, applies the load, and directly reads the Vickers hardness value. | |
| Z-axis control | Software-controlled vertical movement of the hardness tester’s Z-axis | |
| Auto-focus control | The software controls the hardness tester’s Z-axis autofocus to identify the sharpest point on the product surface. | |
| Light Source Brightness Control | Set the brightness of the light source. | |
| Image Acquisition | It displays hardness images in real time, and allows for image storage, printing, and fixed-magnification printing. | |
| Manual/Automatic Measurement | Manual: diagonal‑line measurement, two‑point line‑card measurement, four‑point measurement; Automatic: automatically identifies the four vertices of the indentation, offering fast speed and accurate data. Continuous tapping and testing, immediate testing upon input, and pressing at specified coordinates. | |
| Hardness Conversion | In accordance with national standards, it automatically performs conversions among Brinell, Rockwell, Vickers, and Knoop hardness values, displays the results in real time, and supports conversion to various international standards. | |
| Text and Image Report | Automatically records measurement data, generates hardness–depth curves, and saves or prints both the hardness–depth curves and all indentation measurement values; it also saves or prints indentation images along with the current indentation hardness value. Inspection reports can be customized according to user requirements. Using data‑processing software, the hardened‑layer depth values obtained from continuous measurements of a specimen can be displayed in tabular form. The system can export various measurement data, including D1 and D2 values, hardness tables, hardened‑layer depths, maximum, average, and minimum values, as well as display and output images of each indentation. Hardness values, hardness charts, hardened‑layer depth profiles, and embedded images can all be flexibly edited in Word or Excel, enabling the generation and printing of test reports that incorporate statistical analyses and hardened‑layer depth curves, with options to save the files in Word or Excel format. Additionally, microstructural images of the observed specimens can be printed and saved, directly revealing the microstructure of both the indentations and the surrounding matrix. |
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| Nusselt measurement | The indenter can be replaced to enable automated Knoop hardness measurements. | |
| Automatic Z-axis | Auto‑focus step size (mm): The movement increment during Z‑axis auto‑focus, defaulting to 1.25 mm. Z-axis key step size (mm): The Z-axis travel distance per press of the keyboard or interface arrow keys, defaulting to 1.25 mm. Z-axis lifting and lowering: Low speed (mm/s): default 0.0625 mm/s; High speed (mm/s): default 1.0 mm/s. Speed is adjustable. |
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| Automatic Loading Worktable | The system allows automatic point selection by clicking anywhere on the interface, enables setting the starting position of a straight line and defining random movement positions, and permits 8‑directional control of the automated X‑Y stage via mouse. Users can adjust the speed, enable automatic homing, and freely reset the coordinates. The software system enables programmable control of the automated stage’s movement, offering 14 operating modes: 1) Along the line; 2) Along the line with an angle; 3) Free click; 4) Along the horizontal alignment; 5) Along the vertical alignment; 6) Multiple lines along the curve; 7) Along‑curve matrix; 8) Circular arc; 9) Tooth root; 10) Tooth tip parallel; 11) Automatically along the edge with angle; 12) Automatically along the edge matrix; 13) Center of the circle; 14) Along the curve with multiple tooth tips parallel. |
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| Motor | Stepper motor | |
| Maximum travel distance | 50mm | |
| Minimum movement distance | 1mm | |
| Movement speed | Adjustable | |
| Positional repeatability | 1um | |
| Sample stage dimensions | 100mmX100mm | |
| Image Acquisition/Recognition | Equipped with a high‑quality, high‑resolution 3‑megapixel camera, it enables high‑speed image acquisition at 1280×1024 resolution and 25 frames per second, capturing large‑size raw images. The captured images and measurement results are stored in standard file formats such as BMP and JPG. | |
| Automatic measurement time | Approximately 0.3 seconds per indentation | |
| Measurement repeatability | ±1.0% (700HV/500gf, when the indentation is clear) | |
| Minimum unit of measurement | 0.01mm | |
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