Direkt zum Inhalt
  • Humidity control
  • High-sensitivity, high-precision measurement by the differential method
  • Multi-measurement system that excels in expandability
  • Flexible handling of various sample sizes
  • Notable enhancement of heating and cooling rates enabled by a compact electric furnace
  • Simple sample setting mechanism, the first of its kind in differential TMA
  • Safety foremost emphasized on the entire system
  • Different measurement methods
    • Compression loading method
    • Tensile loading method
    • Penetration method
    • Differential penetration method
    • 3-point bending method
    • Single rod compression loading method
  • Measuring temp. range
    • Standard model: Ambient to 1100°C
    • High-temperature model: Ambient to 1500°C

Humidity controlled TMA

Measurement of mechanical property change with respect to temperature and humidity

TMA/HUM is an instrument where TMA measurements can be carried out in a water vapor atmosphere with a constant relative humidity. In TMA/HUM, TMA is measured at a constant water vapor partial pressure providing a complete understanding of the sample’s expansion or shrinkage with regards to different water vapor partial pressure. 

Especially during sintering of ceramics in a water vapor atmosphere, the actual sintering conditions can be carried out in a laboratory-based environment.

Here, TMA measurements held at a constant temperature while changing the relative humidity measures the swelling ratio with regards to relative humidity effective for the sample’s swelling property evaluation. 

The humidity generator (HUM-1) uses N₂ base gas to create a water vapor containing a humidity controlled gas to be introduced to the TMA.

Here, the TMA is equipped with a specialized electric furnace that keeps the temperature constant thru a circulator to prevent condensation even at high water vapor concentration atmosphere and can perform measurements at a maximum of 85℃ 90% RH atmosphere. The humidity sensor equipped with a feedback control leads to a stable humidity for longer measurements.  Since the relative humidity settings in TMA is integrated in the temperature program, the user can change the relative humidity in each step of the temperature program.

Product name TMA8311/HUM-1
Technique Humidity controlled thermomechanical analyzer
Benefit Measurement of a mechanical property change with respect to temperature and humidity
Technology Differential expansion principle where the thermal expansion or shrinkage generated from the detection mechanism itself can be canceled
Core attributes Multi-measurement system that excels in expandability
Core options High-temperature model: Ambient to 1500°C
Computer External PC
Core dimensions 380 (W) x 580 (H) x 580 (D) (mm)
Mass (core unit) 30 kg
Power requirements 1Ø, AC100-120V/200-240V 50/60Hz 15A