Medical laboratory testing instruments used for disease diagnosis, disease research, and drug analysis have advanced rapidly with the application of high-tech and electronic computer experimental methodologies. As instrument automation increases, functions continuously strengthen, and instruments trend towards miniaturization, their structures have become more compact and complex, placing higher demands on temperature control technology. Semiconductor refrigeration chips, leveraging their small size, precise temperature control, high reliability, low noise, and ability to both cool and heat, play a crucial role in the temperature control systems of medical laboratory testing instruments and are widely used in modern medical laboratory equipment.

1）Centrifuges Utilizing Semiconductor Refrigeration Technology Centrifuges use centrifugal force to separate liquids of different densities (such as blood cells and plasma cells). During high-speed rotation, sample fragments gradually precipitate to the bottom of the tube, thereby separating DNA from the solution. Centrifugation results are influenced by several technical indicators, including rotational speed and duration, with the most critical factor being temperature control. The temperature during centrifugal extraction must strictly meet requirements, as a deviation of even a few degrees Celsius can severely impact quality. Therefore, centrifuges with precise temperature control are more favored in the market. The temperature control module in centrifuges using semiconductor refrigeration technology employs a fuzzy PID algorithm. This algorithm automatically tunes the PID parameters to adjust the voltage supplied to the semiconductor refrigeration chip, thereby controlling its cooling or heating. This enables precise and rapid temperature control within the chamber of ultracentrifuges.

2） Constant Temperature Metal Baths Utilizing Semiconductor Refrigeration Technology Constant temperature metal baths are used for the storage of various analytical instrument samples, preservation and reaction of various enzymes, denaturation processing of nucleic acids and proteins, PCR reactions, pre-denaturation for electrophoresis, serum coagulation, and aging tests of various product materials. Constant temperature metal baths employing semiconductor refrigeration technology offer high control precision and good sample preparation parallelism. Compared to water baths, they feature faster heating and cooling rates, lower noise, smaller size, and greater portability. As precisely controlled temperature equipment managed by microprocessor PID control, they perfectly apply the cooling and heating functions of semiconductor refrigeration, significantly reducing experiment operation time and improving staff efficiency. They are ideal automated tools for processes such as sample incubation, catalysis, and storage.

3）Low-Temperature Incubators Utilizing Semiconductor Refrigeration Technology Low-temperature incubators are ideal constant temperature equipment for scientific research units in environmental protection, epidemic prevention, drug inspection, agriculture, animal husbandry, aquaculture, etc., providing storage for culture media, serum, and pharmaceuticals, as well as microbial cultivation and environmental testing. Low-temperature incubators incorporating semiconductor refrigeration technology can precisely control the internal temperature, possess both cooling and heating functions, and operate with low noise levels.

4）Digital Microscopes Utilizing Semiconductor Refrigeration Technology Digital microscopes incorporate multiple imaging sensors and Field-Programmable Gate Array (FPGA) semiconductors to enhance image quality and camera functionality. Since the image resolution of CCD and CMOS sensors decreases as temperature rises, maintaining a low sensor temperature is necessary for long exposure times. To achieve the optimal operating temperature for digital microscopes, a temperature control system is required to cool the imaging sensors below ambient temperature. Recirculating chillers based on semiconductor refrigeration technology provide precise temperature control with low pulsation and efficiently dissipate heat away from sensitive electronic components, ensuring maximum image resolution.

5）HuaJing Temperature Control specializes in the R&D, production, sales, and customization services of semiconductor refrigeration modules. We possess an R&D team composed of experts in thermal management research and semiconductor refrigeration technology, equipped with high-standard laboratories. The performance testing of our temperature control product series has reached domestically leading levels. With years of deep expertise in semiconductor refrigeration technology, our customized temperature control equipment solutions and products have served numerous industries including medical, aesthetics, communications, testing instruments, and consumer electronics!

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