The high-throughput intelligent microwave digestion instrument adopts microwave non pulse continuous automatic frequency conversion control, which extends the service life of the instrument and the uniformity of electromagnetic waves. The chamber adopts a large volume of 52L, specially made of stainless steel chamber material, and a self-locking buffer explosion-proof furnace door. When the reaction is abnormal, the buffer structure ensures the personal safety of the operator and the integrity of the furnace door structure. The furnace door and chamber are tightly combined, and microwave leakage meets national standards. The instrument adopts a temperature and pressure dual control system to control the pressure and temperature of the synthesis experiment, with real-time display, 360 ° continuous rotation, uniform microwave, ensuring the same microwave environment for each sample and improving the consistency of experimental results.

1、 Temperature control principle and core components

temperature sensor
Microwave digestion equipment usually uses high-precision temperature sensors (such as thermocouples or infrared thermometers) to monitor the temperature inside the digestion tank or cavity in real time. The sensor converts the temperature signal into an electrical signal and transmits it to the control system.

Microwave power regulation
The control system dynamically adjusts the microwave transmission power based on temperature feedback signals. When the temperature approaches the set value, reduce the power to avoid overheating; When the temperature is below the set value, increase the power to accelerate the temperature rise. This closed-loop control method ensures that the temperature fluctuation range is extremely small (usually ≤± 1 ℃).

Pressure and temperature linkage control
Due to the close relationship between pressure and temperature during the digestion process, the instrument will synchronously monitor the pressure inside the tank (through pressure sensors) and incorporate the pressure data into the temperature control logic through algorithms. For example, in high-pressure environments, it is necessary to lower the temperature setting appropriately to prevent tank explosion.

2、 Temperature control mode and function

Multi segment program temperature control
Users can preset multiple temperature time programs (such as heating, constant temperature, and cooling stages) to meet the digestion needs of different samples. For example:

rapid heatingRaise the temperature to the target value (such as 180 ℃) with high power.

Constant temperature digestionMaintain a certain amount of time (such as 30 minutes) at the target temperature to ensure sample decomposition.

Gradient coolingGradually reduce the temperature to a safe range to avoid sample crystallization or tank damage.

Intelligent temperature compensation
Based on the thermal conductivity differences of different samples (such as traditional Chinese medicine, metals, and soil), the instrument can automatically adjust power distribution, compensate for local temperature unevenness, and ensure consistent overall digestion effect.

Real time temperature display and recording
The control system displays the current temperature, set temperature, and operating time in real time, and can export data for subsequent analysis, facilitating experimental repetition and verification.