MP-2是一款先進的儀器,具有多種感測器可供選擇,適用於各種材料應用。其感測器具有和其他儀器相似的工作原理,使用固定的電流(q)對感測器金屬絲進行加熱,透過測量金屬絲的電阻變化(THW和EFF)或電阻溫度探測器(TLS)來記錄升溫。斜率越低,樣品熱導率越高;斜率越高,樣品熱導率越低。
自動測試功能可以用內置軟體或MP-2 Windows應用軟體進行,相當便利。包括查看、保存、刪除結果、或將結果導入Excel。又因其便攜性,可以用電池或USB供電。儀器本身的屏幕提供豐富資訊,可讓用戶瞭解電源狀態和測試進度。
感測器 | 材料 |
---|---|
MTPS | 固體、糊劑和粉末 |
THW | 液體 |
TLS 50 mm | 岩石和混凝土 |
TLS 100 mm | 土壤和聚合物 |
TLS 150 mm | 土壤和聚合物 |
TPS-EFF | 紡織品和布料 |
Modified Transient Plane Source (MTPS) sensor: For testing the thermal conductivity of solids, pastes, and powders. Only one sample piece is needed for this asymmetric (single-sided) sensor.
MTPS | |
---|---|
Materials | Solids, pastes and powders |
Thermal conductivity (W/m·K) | 0.029 to 20 |
Sample size (mm | mL) | 25 diameter or square |
Largest sample size | Unlimited |
Test time (seconds) | 10, 20, and 40 |
Accuracy (Thermal conductivity) | 5% |
Repeatability (Thermal conductivity) | 2% |
Temperature range (°C) | 0 to 80 |
Moisture range | N/A |
Standards | N/A |
TLS 50mm: For testing conrete, rock and polymers. This sensor can be used on any sample size.
TLS 100mm: For use on soils and polymers. This sensor conforms to industry standards and can be used on any sample size following ASTM D5334-22a.
TLS 150mm: For testing soils and polymers. This sensor can be used on any sample size while conforming to industry standards following ASTM D5334-22a and IEEE 442-2017.
TLS 50 mm | TLS 100 mm | TLS 150 mm | |
---|---|---|---|
Materials | 混凝土、岩石和聚合物 | 土壤與聚合物 | 土壤與聚合物 |
Thermal conductivity (W/m·K) | 0.3 to 5 | 0.1 to 5 | 0.1 to 3 |
Thermal resistivity (mK/W) | 0.2 to 3.3 | 0.2 to 10 | 0.3 to 10 |
Sample size (mm | mL) | 50 length, 50 diameter | 100 length, 50 diameter | 150 length, 50 diameter |
Largest sample size | Unlimited | Unlimited | Unlimited |
Test time (seconds) | 180 | 180 | 180 |
Accuracy (Thermal conductivity) | 5% | 5% | 5% |
Repeatability (Thermal conductivity) | 2% | 2% | 2% |
Temperature range (°C) | -40 to 100°C | -40 to 100°C | -40 to 100°C |
標準 | N/A | ASTM D5334-22a, IEEE 442-1981 | ASTM D5334-22a, IEEE 442-2017 |
Transient Hot Wire (THW): For testing the thermal conductivity of liquids following ASTM D7896-19.
THW | |
---|---|
Materials | Liquids |
Thermal conductivity (W/m·K) | 0.01 to 1 |
Sample size (mm | mL) | 15 mL |
Largest sample size | Unlimited |
Test time (seconds) | 1 |
Accuracy (Thermal conductivity) | 5% |
Repeatability (Thermal conductivity) | 2% |
Temperature range (°C) | 0 to 80 |
標準 | ASTM D7896-19 |
Transient Plane Source (TPS-EFF): For testing warmth or coolness of fabrics and textiles. Conforms to industry standards following ASTM D7894-16.
TPS-EFF | |
---|---|
Materials | Fabrics and solids |
Thermal effusivity (W√s/m²K) | 35 to 1700 |
Sample size (mm | mL) | 30 diameter |
Largest sample size | Unlimited |
Test time (seconds) | 2 and 10 |
Accuracy (Thermal conductivity) | 5% |
Repeatability (Thermal conductivity) | 2% |
Temperature range (°C) | -10 to 50 |
Moisture range | 0 to 90% (non-condensing) |
標準 | ASTM D7984 |
Models | ||||
Thermal Conductivity | 0.005 to 2000 W/m•K | 0.01 to 500 W/m•K | 0.03 to 70 W/m•K | 0.029 to 20 W/m•K |
Additional Properties | Thermal Diffusivity, specific heat, thermal effusivity, and thermal contact resistance | Thermal diffusivity, specific heat and thermal effusivity | Thermal diffusivity and specific heat | N/A |
Measurement Time | 0.25 to 2560 seconds | 2 to 160 seconds | 10 to 160 seconds | 10, 20 and 40 seconds |
Sample Size* | 5 diameter or square to unlimited | 10 diameter or square to unlimited | 40 diameter x 5 length to unlimited | 25 diameter or square to unlimited |
Reproducibility | 1% | 2% | 2% | 2% |
Accuracy | 3% | 5% | 5% | 5% |
Temperature Range | 0 to 300 °C -160 | -45 to 300 °C up to 750 / 1000 °C | 0 to 300 °C -75 to 300 °C | 10 to 80 °C | 0 to 80 °C |
Optional Sensors | THW, TLS, MTPS, THS | THW, TLS, MTPS | N/A | THW, TLS, TPS-EFF |
Standards | ISO 22007-2, ISO 22007-7, GB/T 32064 | ISO 22007-2, ISO 22007-7, GB/T 32064 | N/A | N/A |
iTransient Parameter Automation | Yes | Yes | N/A | N/A |
Single-Sided | Yes | Yes | MTPS (Ø 12.8 mm) | N/A | Yes |
*視所使用的測試模組而定
Models | |||
Materials | Liquids and PCMs | Liquids and PCMs | Liquids |
Testing Modules | Bulk | Bulk | Bulk |
Other Materials | Solids with TPS | No | Solids with TPS, TLS |
Thermal Conductivity | 0.01 to 2 W/m•K | 0.01 to 2 W/m•K | 0.01 to 1 W/m•K |
Sample Size | 20 mL | 20 mL | 15 mL |
Additional Properties | Thermal Diffusivity and Specific Heat | Thermal Diffusivity and Specific Heat | No |
Temperature Range | 10 to 200 °C -40 to 200 °C -160 | -40 | 0 to 300 °C | 10 to 200 °C | -40 to 200 °C -160/-40/0 to 300 °C | 0 to 80 °C |
Pressure | Up to 35 bar* | Up to 35 bar* | Ambient |
Test Times | 1 second | 1 second | 1 second |
Data-Points | 400 points/second | 100 points/second | 60 points/second |
Thermal Conductivity Accuracy | 2 % | 2 % | 5 % |
Repeatability | 1 % | 1 % | 2 % |
Standards | ASTM D7896-19 | ASTM D7896-19 | ASTM D7896-19 |
External Cooling Apparatus Required | No | Yes* | No | Yes* | Yes |
*視所選用的型號而定