Liquid Nitrogen Thermostats - Optical

Liquid Nitrogen Thermostat - Optical

The liquid nitrogen cryostat developed by Jinzhengmao Technology Co., Ltd. uses liquid nitrogen as a cooling medium. The standard thermostat can quickly cool down to the liquid nitrogen temperature (about 20 minutes). Its working principle is to install it in the liquid nitrogen chamber inside the thermostat. Enter the liquid nitrogen, adjust the gap between the temperature control plug and the cold finger to keep the heat leakage of the cold finger at a certain value, and then pass the temperature controller independently developed by Jinzhengmao Technology Co., Ltd. and its internal fuzzy control system. Adjust the heating output power, so that the temperature of the thermostat changes rapidly between 80K-600K, and can quickly stabilize to a certain set value. In addition, if the thermostat is equipped with a step-down option, the temperature of the thermostat can be reduced. Dropped to 65K and stabilized at 65K.

    In order to meet the needs of more customers, the company has also developed continuous flow type liquid nitrogen and liquid helium cryostats, so that users do not need to add liquid nitrogen and liquid helium all the time during the experiment, and can measure stably for a long time. When using liquid helium as the low-temperature medium, the low temperature can be as low as 4K, and when using liquid nitrogen as the medium, the low temperature can be as low as 78K. During operation, the low-pressure refrigerant is introduced into the thermostat from the liquid inlet, and then passes through the inside of the thermostat. The capillary tube is introduced into the evaporator at the bottom of the thermostat. The evaporator of the thermostat is also equipped with a heater and a temperature sensor. After the temperature is controlled by the temperature controller, the steam is sprayed into the sample chamber. After cooling the sample, the steam passes through. The gas outlet pipe is discharged into the atmosphere or in the gas recovery device. In the design of this type of thermostat, in order to facilitate the customer to easily load the sample, the sample can be loaded from the top of the thermostat through the sample rod. ratio is smaller and is more suitable for measurements in magnetic fields. After more than ten years of pursuit of product quality and strong support from customers before and after sales, TSKE series low temperature products are your ideal choice.

Functions and Features: 

※ Temperature range (65K~500K), (700K optional) high efficiency and fast cooling speed;

※ The sample is in the vacuum chamber, which has an ideal and stable experimental environment;

※ The vacuum interlayer is equipped with a low-temperature adsorbent, which can prolong the vacuum holding time and prolong the use time of liquid nitrogen;

※ The temperature sensor adopts PT100 platinum resistance with good stability and repeatability;

※ A variety of options to meet different testing needs;

※ It is convenient to add liquid nitrogen during use;

※ The optical sample holder can be equipped with pluggable sample cards, and easy-to-use and beautiful binding posts;

※ Can be customized according to customer requirements;

※ Standard 8 measuring leads, can be expanded to 32;

※ The window comes standard with 2 fused silica windows, which can be expanded to 5, and the window material can be replaced according to user requirements;

※ The replacement of samples is convenient and quick, and the sample replacement can be completed within 5 minutes;

※ The sample holder can choose liquid sample holder, dust sample holder, solid sample holder and block sample holder.

Technical Specifications

        Note: 700K high temperature optical thermostat can be customized

Ordering Instructions:

Sample Holder Options:

Remark:

1: All standard optical thermostats are shipped with only one sample holder.

   2: If the above standard sample holder can not meet customer needs, it can be customized according to customer requirements.

   3: In order to fix the optical performance samples, all optical thermostats are equipped with a tablet for holding the sample, and the aperture of the tablet is the same as the size of the clear hole.

Thermostat Optical Connector Options:

Remark:

1: All thermostats are shipped with two connectors, one for temperature sensor and heater installation and the other for

The connectors prepared for other performance measurements, when more test lines are required, it is necessary to add mounting holes, or add one or more Breakout Boxes

2: There is T91-S option in the above table, the terminal board and the shell of this option constitute the grounding as a whole, and the other is the T91-PTEF option, this option is the shell and the installed joint using PTFE board insulation connection, The electrical properties of the housing and the connector are independent of each other. This should be taken into account when selecting models.

Decompression accessory options

The standard thermostat itself does not have special pressure reducing spare parts. When 65K low temperature is required, corresponding pressure reducing accessories need to be configured.