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TPS thermal conductivity meter ISO 22007-2
Test materials
Metal, ceramic, alloy, ore, polymer, composite material, paper, fabric, foamed plastic (insulation material and plate with flat surface), polyurethane, phenolic aldehyde, urea formaldehyde, mineral wool (glass wool, rock wool, mineral wool), cement wall, glass reinforced composite board CRC, cement polystyrene board, sandwich concrete, glass steel panel composite board, paper honeycomb board, etc.
Features
1. Wide test scope, stable test performance
2. Direct measurement, with a testing time of around 5-160s
that can be set, can quickly and accurately measure the thermal conductivity,
saving a lot of time;
3. Will not be affected by contact thermal resistance
like the static method;
4. No need for special sample preparation, and
there are no special requirements for the shape of the sample. Blocky solids
only need a relatively smooth sample surface and meet the requirements of
length and width at least twice the diameter of the probe;
5. Conducting non-destructive testing on samples means that
they can be reused;
6. The probe is designed with a double helix structure,
combined with a proprietary mathematical model, and core algorithms are used to
analyze and calculate the data collected on the probe;
7. Ingenious structure design of the sample table,
easy to operate, suitable for placing samples of different thicknesses, and
simple and beautiful;
8. The data collection on the probe uses an imported data
collection chip, which has a high resolution and can make the test results more
accurate and reliable;
9. The control system of the host uses an ARM
microprocessor, which has a faster computational speed than traditional
microprocessors, improving the system's analysis and processing capabilities,
and resulting in more accurate calculation results;
10. The instrument can be used for the measurement of
thermophysical parameters such as block solid, paste solid, granular solid,
colloid, liquid, powder, coating, film, insulation material, etc;
11. Intelligent human-machine interface, color LCD display, touch screen control, easy and concise operation;
Specifications
1. Test range:
0.001~500W/(m * K)
2. Probe measurement
temperature range: -15 ℃~130 ℃
3. Probe diameter: 7.5mm
for probe 1; Probe 2 15mm
4. Accuracy: ± 3%
5. Repeatability error: ≤ 3%
6. Measurement time: 5-160
seconds
7. Power supply: AC 220V
8. Overall power: ＜ 500w
9. Sample temperature rise:
＜ 15 ℃
10. Test sample power P:
Probe 1 power 0
11. Sample Specification:
First probe sample (7.5 * 7.5 * 3.75mm) Second probe sample (15 * 15 * 7.5mm)
Note: Probe 1 measures a
thin, low conductivity material. If the surface of the tested sample is smooth,
flat, and sticky, the sample can be stacked.
Thermal conductivity test methods Comparisons
|
Method |
TPS |
Laser |
Hot wire |
Protection plate method |
|
Type |
Non steady state method |
Non steady state method |
Non steady state method |
steady state method |
|
Measuring physical properties |
Directly obtaining thermal conductivity and thermal diffusivity |
Directly obtain the thermal diffusivity and specific heat, and
calculate the thermal conductivity through the input sample density value |
Directly obtaining thermal conductivity |
Directly obtaining thermal
conductivity |
|
Applicable scope |
Solid, liquid, powder, paste, colloid, particle |
solid |
Solid, liquid |
solid |
|
Sample preparation |
No special requirements, simple sample preparation |
Complex sample preparation |
Simple sample preparation with specific requirements |
Large sample size |
|
Measurement accuracy |
± 3%, preferably up to ± 0.5% |
It is best to achieve ± 10% |
It is best to achieve ± 5% |
It is best to achieve ± 3% |
|
Physical model |
Plane heat source contact measurement, as long as the limited
surface contact is good |
Heat source non-contact type |
The wire heat source must have good contact with the wire model |
Heat source contact type, with
good surface contact required |
|
Thermal conductivity range [w/(m
* k)] |
0.005-300 |
10-500 |
0.005-10 |
0.005-5 |
|
Measurement time |
5-160S |
A few minutes |
Tens of minutes |
Hours |