Guarded Heat Flow Meter
Whats/App: +86 156 1874 6768
Web: standard-groups.com
The Guarded Heat Flow Meter is a precision instrument designed to measure the thermal resistance and thermal conductivity of solids, including metals, polymers, composites, and pastes, over a temperature range of -20°C to 310°C. By replacing traditional pneumatic motion with advanced motorized control, the system achieves automatic adjustment of sample thickness, applied pressure, and force. This instrument provides highly accurate steady-state measurements, enabling precise evaluation of materials’ thermal performance and aiding in quality control, research, and energy efficiency assessment.
Application
Measurement of thermal conductivity and thermal resistance of metals, polymers, composites, and pastes.
Characterization of thermal performance for materials in aerospace, electronics, automotive, and industrial applications.
Determination of steady-state heat transfer for heterogeneous or non-uniform materials.
Applicable for quality control, material research, R&D, and certification testing.
Standards
ASTM E1530: Standard Test Method for Evaluating Thermal Resistance of Materials Using a Guarded Heat Flow Meter.
ASTM E1560-19: Standard Test Method for Thermal Conductivity Measurements with Guarded Heat Flow Meter.
Parameters
| Item | Specification / Description |
|---|---|
| Applicable Materials | Metals, Polymers, Composites, Pastes |
| Sensor Type | Thermocouples (x6) |
| Measurement Direction | Through-thickness |
| Thermal Conductivity Range | 0.1 – 100 W/m·K * |
| Sample Diameter | 50 – 50.8 mm |
| Sample Thickness | Up to 25 mm (0.1 mm optional for soft materials) |
| Test Time | 40 – 60 minutes |
| Accuracy | 3% (k) |
| Repeatability | 1 – 2% (k) |
| Temperature Range | -20 to 310 °C ** |
| Pressure | Automatic, up to 379 kPa (55 psi) |
| Notes | * Materials with conductivity >60 W/m·K must have thickness ≥12.5 mm ** Each system includes a refrigeration circulator |
Replaceable Heat Flow Module: Tool-free replacement of the calibrated heat flux sensor module.
Comprehensive Temperature Monitoring: Multiple thermocouples ensure sample temperature gradient is at steady-state during testing.
Precision Thickness Measurement: Proprietary universal design allows automated thickness measurement for rigid materials or user-defined thickness/pressure for compressible samples. Optical encoders provide ±0.025 mm accuracy.
Temperature Control: Heat exchanger with thermocouples enables precise heating and cooling; lateral heat loss minimized using guarded furnace; software allows precise temperature programming.
Clamping Control: Automatic clamping for rigid samples; software-controlled height/pressure (up to 379 kPa / 55 psi) for soft materials, with automatic stop once desired parameters are reached.
Steady-State Measurement: Ensures accurate thermal resistance and conductivity by maintaining stable temperature gradients through the sample.
在线联系供应商
Other supplier products
 |
Xenon Test Chamber | Whats/App: +86 156 1874 6768 Web: standard-groups.com Features and Benefits 1.The use of xenon arc lamp as a light source, can simulate the full... |
 |
Fourier Transform Infrared Smoke Toxicity Measurement Equipment | Whats/App: +86 156 1874 6768 Web: standard-groups.com Application The FTIR smoke toxicity test system is suitable for a wide range of gas analys... |
 |
Seatbelt Fabric Pilling Tester | Whats/App: +86 156 1874 6768 Web: standard-groups.com The Seatbelt Fabric Pilling Tester is designed to simulate the pilling and wear of garments... |
 |
Luggage Walked Wear Tester | Whats/App: +86 156 1874 6768 Web: standard-groups.com Product Introduction This product is used for suitcases, bags, strollers with wheels&helli... |
 |
ASTM & ISO Professional Mechanical Scratch Tester | Get a quote： Whats/App: +86 156 1874 6768 Web: standard-groups.com The Mechanical Scratch Tester is a mechanically driven instrument designed fo... |
Same products
 |
MMA-120 Handheld Arc Welder | 卖方: 871183 | The MMA-120 Handheld Arc Welder from ChuangLi Electronic Technology Co., Ltd. is designed for con... |
 |
SHX Series Circulating Fluidized Bed Steam Boiler | 卖方: Hebei Genjux Boiler Co.,Ltd | Capacity: 10-35 t/hWorking pressure: 1.25-2.5 MPaOperating temperature: 194-400 ℃Applicable to bi... |
 |
YQ(Y)W Series Oil/Gas Fired Vertical Thermal Oil Boiler | 卖方: Hebei Genjux Boiler Co.,Ltd | Capacity: 7000-29200 KWOperating pressure: 0.8-1.0 MPaOperating temperature: 320℃Operating mode: ... |
 |
DHL Series Coal-Fired Steam Boilers | 卖方: Hebei Genjux Boiler Co.,Ltd | Capacity: 35-75 t/hOperating pressure: 1.25-5.4 MPaOperating temperature: 194-485℃Applicable to b... |
 |
SZL Series Biomass Steam Boiler | 卖方: Hebei Genjux Boiler Co.,Ltd | Capacity: 6-35 t/hWorking pressure: 1.0-2.5 MPaOperating temperature: 184-350 ℃Applicable fuel bi... |
