Below are general answers on typical components of hardness testers from the list of GAO Tek’s hardness testers. To facilitate our customers to select our products, we have further classified our hardness testers by their features: alarm, auto recognition of impact device, data storage, installable software, multi-angle testing, preset limit settings, thermal printer, user material function, and pen type.

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Frame/Mechanical Structure:

  • Indentation Mechanism: This is the part for creating an indentation on the material’s surface. It typically includes a GAO Tek indenter (e.g., diamond, steel ball) and a mechanism to apply force for indentation.
  • Load Frame: The GAO Tek load frame provides the structure for applying the load to the indenter and the test specimen. It ensures stability during the test.

Electronic Components:

  • Load Cell: A GAO Tek load cell measures the force applied to the indenter during the test. It converts mechanical force into an electrical signal that we can process.
  • Depth Measurement System: For depth-sensing hardness testers, our system measures the depth of the indentation, which is crucial for hardness calculations. This system can use GAO Tek sensors, LVDTs (Linear Variable Differential Transformers), or similar devices.
  • Control System: Our control system manages the application and release of the load during the test. It ensures that the load is applied uniformly and accurately.
  • Feedback Mechanism: This system adjusts the applied force based on feedback from the GAO Tek load cell and depth measurement system to maintain accurate and consistent results.

Software Components:

  • User Interface: The GAO Tek user interface allows operators to input parameters, initiate tests, and view results. It may include a touchscreen, buttons, or a combination of input methods.
  • Data Acquisition System: This system collects and processes data from the GAO Tek load cell, depth measurement system, and any other sensors. It is responsible for converting raw data into usable hardness values.
  • Calibration Software: Hardness testers require periodic calibration to ensure accurate results. Our calibration software facilitates this process, allowing users to adjust and verify the accuracy of the GAO Tek instrument.
  • Data Storage and Analysis: The GAO Tek software often includes features for storing test data, generating reports, and performing statistical analyses on hardness measurements.

Display and Output:

  • Display Screen: Provides real-time feedback during the test and displays results. It may show values like hardness, load, and indentation depth.
  • Output Ports: USB ports, ethernet, or other connectivity options for transferring data to external devices, such as computers or printers.

Power Supply:

  • Power Source: GAO Tek hardness testers are typically powered by electricity, either through a direct connection to a power source or by using GAO Tek rechargeable batteries for portability.

Safety Features:

  • Emergency Stop: A safety feature that allows users to halt the test in case of unexpected issues.
  • Enclosures: Some GAO Tek hardness testers have protective enclosures to prevent accidents and protect users from moving parts.