High and low temperature laser thermal conductivity testerUsing a laser beam to irradiate the sample and an infrared detector to measure the increase in temperature on the back of the sample is a fast non-contact instrument for measuring thermal conductivity. Laser thermal conductivity tester is suitable for testing the thermal conductivity of the vast majority of materials, except for insulation materials. Laser thermal conductivity meter is particularly suitable for testing the thermal conductivity of high thermal conductivity materials and at high temperatures. It is widely used in materials, automotive, aerospace, electronics, chemical, energy and other fields, and is currently an important scientific research equipment for production units and universities.
Key Features:
1. Eliminating interference signals at the outer edge of the sample can greatly improve the accuracy of measurement results.
2. The data acquisition rate and extremely narrow light pulse width allow for the measurement of thin and highly thermally conductive materials.
3. Multiple mathematical model fitting, precise pulse width correction and pulse energy integration, heat loss correction, built-in database.
4. It can achieve two modes: vacuum measurement and protective atmosphere measurement.
5. Conduct non-contact temperature rise signal testing on the sample surface using an infrared detector.
6. Multi layer contact thermal resistance analysis can be carried out, and parameters such as thermal resistance and thermal diffusion rate can be calculated. The specific heat can be calculated using a standard sample with known specific heat and through comparative methods.
Maintenance and upkeep:
Maintenance of temperature control system:
Sensor calibration: Calibrate the temperature sensor quarterly using a standard blackbody source to ensure that the deviation is within the allowable range.
Heating/cooling module: Check the oxidation condition of the heating terminal and polish it with fine sandpaper if necessary; Liquid nitrogen refrigeration equipment needs to check the liquid level and pipeline insulation layer every week to prevent loss of cooling capacity.
Environment and operating standards:
Temperature and humidity control: Ensure stable testing environment and avoid high temperature or humidity affecting equipment accuracy.
Sample installation: Check that the sample has good contact with the sensor, accurate parameter input, and reduces measurement errors.
Regular in-depth maintenance:
Electrical system: Check the aging and insulation status of the circuit to prevent leakage or short circuit.
Performance testing: Key components such as compressors and data acquisition systems are calibrated annually by professionals, and maintenance logs are recorded.