Thermal Conductivity Tester(Transient Fast Hot-Wire Method)
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Transient Fast Hot-Wire Thermal Conductivity Tester is a compact and efficient instrument designed for rapid measurement of thermal conductivity using the transient hot-wire method. The system employs a linear heat source probe with a very high length-to-diameter ratio, enabling accurate simulation of an ideal infinite line and infinitely thin heat source.
With a plug-and-play probe interface and intuitive software operation, the tester allows users to complete the entire process—from sample preparation to final results—within 1 to 2 minutes. Featuring fast measurement speed, wide application range, reliable accuracy, and excellent portability, this instrument is well suited for production inspection, quality control, and research applications across multiple industries.
Application
The Transient Fast Hot-Wire Thermal Conductivity Tester is widely used in:
Material research laboratories for rapid thermal property evaluation
Quality control departments for routine inspection
Geotechnical and civil engineering testing
Polymer and rubber material research
Refractory and insulation material testing
Typical tested materials include:
Plastics and polymer materials
Soil and soft rock
Rubber and elastomers
Liquids and colloids
Pastes, powders, and granular materials
Standards
ASTM D5334-2008 – Standard Test Method for Determination of Thermal Conductivity of Soil and Soft Rock by Thermal Needle Probe Procedure
GB/T 10297-2015 – Determination of Thermal Conductivity of Non-metallic Solid Materials — Hot-Wire Method
GB/T 11205-2009 – Rubber — Determination of Thermal Conductivity — Hot-Wire Method
ASTM C1113-2009 – Standard Test Method for Thermal Conductivity of Refractories by Hot Wire (Platinum Resistance Thermometer Technique)
ASTM D5930-2009 – Standard Test Method for Thermal Conductivity of Plastics by Means of a Transient Line-Source Technique
Parameters
| Item | Specification |
|---|---|
| Thermal conductivity range | 0.0001–50 W/(m·K) |
| Resolution | 0.00001 W/(m·K) |
| Relative measurement error | ≤ 3% |
| Repeatability error | ≤ 3% |
| Temperature resolution | 0.01°C |
| Measurement time | 2–180 s (adjustable) |
| Sample test temperature range | -40 to 130°C (standard: room temperature) |
| Sample types | Solid, liquid, paste, powder, granular |
| Sample shape | Block, sheet, paste, powder, particle, colloid, liquid (no shape restriction) |
| Sample size | Cylinder Ø30 mm, 30 × 30 mm square, or irregular shape; thickness > 1 mm |
| Power supply | AC 220V ±10%, 50/60 Hz |
| Total power | < 200 W |
| Instrument dimensions | 380 × 400 × 165 mm |
| Instrument weight | 5 kg |
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