According to customer requirements, Guoguo Instrument has delivered customized probe hot and cold tables to a university in Russia. This product adopts liquid nitrogen refrigeration and resistance heating methods, providing precise control within the temperature range of -190 ℃ to 400 ℃. It is designed with a high vacuum chamber, suitable for weak magnetic environments, and can be used for related material testing and research.

This device uses non-magnetic or weak magnetic materials and is compatible with the customer's magnetic field generating equipment; Meanwhile, due to the lack of threaded holes at the bottom of the customer's equipment for fixing, the design of the bracket uses support legs to press against both walls, and then screws to press down on the bottom plate to achieve the purpose of fixing. This way, without any modification, it can be compatible with the customer's existing equipment and meet their testing needs.

Magnetic field generating equipment

Equipment installation diagram

Main technical specifications of the product:

1. Cold and hot methods: liquid nitrogen cooling, resistance heating

2. Temperature range: -190 ℃ -400 ℃

3. Temperature control rate: Maximum heating rate: 150 ℃/min, maximum cooling rate: 40 ℃/min

4. Sample stage: silver; 23mm*23mm

5. Transmitting light path (ф 2mm transparent hole)

6. Upper window size: 25mm * 1mm

7. Window size: 10mm * 1mm

8. Window material: JGS2 quartz glass (transmission band range 220nM~2500nM), can be manually disassembled and replaced)

9. Window defrosting: equipped with a blowing bracket, defrosting by blowing liquid nitrogen exhaust gas at low temperatures

10. Distance from the surface of the window to the surface of the sample stage: 7mm

11. Sample cavity height: 6mm

12. Probe: Fixed probe holder * 4+Rhenium tungsten gold-plated probe * 4

13. Electrical interface: BNC * 4

14. Chamber: Vacuum