MHT-10 Microhardness Tester
The MHT-10 Microhardness Tester offers the following outstanding features:
  • High performance - reasonable price
  • Fits most precision optical microscopes
  • Hardness according to Vickers or Knoop with an extremely wide load range
  • Integrated diagonal measuring system with video measuring system or measuring eyepiece
  • Connection cable attached to sensor housing
  • X-Y stage for alignment into optical axis
  • Diamond tip can be replaced on site - thus allowing easy interchange of Vickers and Knoop indenters
Method of Measurement
The test parameters are entered via the keyboard or via the serial interface using an IBM compatible PC.
At the start of the measurement, the diamond tip approaches the surface at the defined speed. When the indenter makes contact with the specimen surface, there is a slight load increase which is registered by the control processor. The actual load is increased according to the load gradient until it reaches the full value.
Upon completion of the dwell time, the diamond indenter is retracted to its rest position. The indentation is then measured by the integrated diagonal measuring device. The control unit reads the data and calculates the hardness.
Statistical evaluation can be easily performed, since the data from a series of tests can be stored in the control unit.
Typical Applications
Metallography Identification of phases and phase changes; determination of hardness profiles; assessment of diffusion, segregation and deformation processes; quantification of transition areas of differently alloyed steels Vickers
Galvanotechnics solidity of metal platings Knoop
Precision mechanics assessing the texture of minute precision parts Knoop
Compound materials preparation of hardness profiles Knoop
Geo sciences examinations of raw materials;

identification of ore phases;

determination of hardness anisotropies of natural and synthetic monocrystals

Vickers
Knoop
Ceramic materials determination of the hardening degree of glaze Vickers
Electronics quantitative information on the embrittlement on nail head bondings on integrated circuits Vickers
Plastics solidity of polymer components and synthetic fibers Vickers
Knoop
Dental technology quantitative information on the structural firmness of metal and plastic dentures;

hardening process of tooth enamel

Vickers
Knoop
Sensor and Control Unit
The sensor corresponds in shape and size to an objective. It screws directly into one of the objective threads on the nosepiece and can be used on upright or inverted microscopes. Both Knoop and Vickers indenters are available. The connection cable can be plugged into the sensor housing. The diamond tip can be replaced on site to allow easy interchange of Vickers and Knoop indenters.
The control unit comes with a keyboard and easy to read display. The unit is completely menu-driven and simple to operate. The integrated diagonal measuring system feeds all measured data directly into the control unit, where the results are displayed. The results can also be printed on an external printer.
Technical Specifications
Load range: 0.5 - 400 p (gf) / 0.005 N - 4 N
Load gradient: 0.1 - 99.9 p/s / 0.001 - 0.999 N/s
Dwell time: 0 - 9999 s
Power: 85 - 264 V / 50 ... 60 Hz / 50 VA max.
Sensor
Diameter:
Length:
Weight:
Thread:
35 mm
44.7 mm (others on request)
0.3 kp
W 0.8" x 1/36" (others on request)
Control unit:
Dimensions:
Weight:
400 x 240 x 140 mm (L x W x H)
6 kp