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Metravib DMA Line · High Frequency

VHF104 High Frequency DMA

Measure high-frequency properties directly — no extrapolation required.

Most conventional DMAs are limited to a few tens of hertz, so high-frequency properties have to be extrapolated with WLF calculations. VHF104 measures viscoelastic properties directly, from 100 Hz up to 10 kHz.

Metravib VHF104 High Frequency DMA
10 kHz

Maximum frequency, measured directly

~5 min

Typical high-frequency sweep

1 MHz

Reach with WLF extrapolation

10⁻⁶ – 30%

Strain range

VHF104 test results
Built for productivity

Minutes, not hours

With a conventional DMA, reaching high-frequency properties means running low-frequency sweeps over many temperature stages for several hours, then applying WLF calculations. VHF104 does it with a direct test in a few minutes.

That makes it ideal for industrial labs that need to analyze large numbers of material formulations quickly.

Validated results

Proven against conventional DMA

VHF104 results cross-check very well with conventional DMA. In a comparison with a Metravib DMA+150, master curves built by extrapolation closely matched direct VHF104 measurements, which took 5 minutes instead of a couple of hours.

Conventional DMA+150

Frequency sweeps from 5 Hz to 200 Hz over 20 temperature stages, then WLF extrapolation with the Dyna+ FTS function to build master curves from 0.1 Hz to 5 kHz.

VHF104

Direct measurement across the high-frequency range in about 5 minutes, with very good agreement with the extrapolated master curves.

System composition

What comes in the cabinet

VHF104 is a single mechanical cabinet, configured with the options your testing needs.

Test frame & shaker

A test frame with an electrodynamic shaker drives the high-frequency excitation.

Amplifier & electronics

Power amplifier and electronic interface built into the cabinet.

Specimen holders

Tension-compression holder standard, with a shear holder available as an option.

Thermal options

Thermal chamber (ambient to 110 °C) or cryogenic source (−30 °C to ambient).

Technical details

Specs & Resources

Frequency: Min: 100 Hz
Max: 10 kHz
Temperature Range: Option 1:
Min: Ambient Max 110 °C
Option 2:
Min: -30 °C Max: Ambient
Strain Range:10E-6 up to 30%*
Note: usable frequency range may depends on specimen geometry & material’s nature
Modes: Tension-compression
Shear
Short test duration (about 5 minutes)
Composition:VHF 104 consists in a mechanical cabinet including:
• Test frame including electrodynamic shaker
• Power amplifier
• Electronic interface
• Tension-compression specimen-holder
• Shear specimen-holder (option)
• Thermal chamber (option)
• Cryogenic source (option)

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See what VHF104 can do for your lab

Get a quote today and discover how Alpha and Metravib’s dynamic testing instruments, dedicated support and specialized expertise can advance your materials testing.