Starting from 2025, the railway 12306 platform officially launched the "pet transportation" service: After completing the online reservation, passengers can have one family-trained, healthy, weighing no more than 15 kilograms and with a shoulder height of no more than 40 centimeters, cat or dog pet transported along with the train. Although the existing pet transportation boxes are generally equipped with air circulation systems and have functions for monitoring temperature, humidity, and oxygen content, most lack the ability to actively regulate temperature. Once the air conditioning fails during transportation or there is a hot weather, the temperature inside the box may rise rapidly, causing the pet to suffer from heatstroke and even endangering its life. Therefore, precise, stable, and reliable active temperature control has become a key demand for enhancing the safety of pet tr...

Welcome to the TEC Science Popularization Classroom! The thermoelectric particles in the thermoelectric cooling chip are simply called DICE. It is not only a key component of TEC but also determines its core performance. This article will focus on the role and design points of the thermoelectric particles (DICE). If you have any questions about the content of the article or want to learn more about TEC, please leave a message in the comment section~ I. The Role of Thermoelectric Particles in TECThe main material of thermoelectric particles is Bi₂Te₃ (tearod铋). Depending on the doping method, they can be classified into two types: P-type and N-type. P-type and N-type thermoelectric particles must be used in pairs to form a basic thermoelectric unit - usually called a thermocouple. The smallest working unit of TEC is precisely composed o...

What is 3D printing? It is a manufacturing technology that builds three-dimensional objects directly from digital models by layering materials one upon another. From creative toys to aerospace parts, using the "layer-by-layer stacking" method, the 3D models in the computer are transformed into real objects in your hands.  I. Why is precise temperature control necessary for 3D printing?  The essence of 3D printing is a cyclic process of "melting - cooling - solidification". After the materials (such as PLA, ABS, PETG, etc.) are extruded from the nozzle, they must be cooled under suitable and uniform temperature conditions to ensure adequate adhesion between layers, effectively reduce internal stress to prevent warping, and guarantee a smooth surface and clear details. However, traditional 3D printers generally rely on passive cooling by fans, which results...

Have you ever tried taking pictures of stars with your phone at night? The result is either a blurry mess or a screen full of colorful dots - commonly known as "snow noise". However, the deep-space photos taken by astronomy enthusiasts are detailed star clouds and a dark background, as clean as a painting. This relies not only on expensive lenses and post-processing, but also on thermoelectric cooling technology - it enables the image sensor to work stably at low temperatures and output clear, low-noise high-quality images. I.How do image noise points form?  Whether it is a CCD or a CMOS image sensor, during its operation, it will generate a type of noise called "dark current" due to electronic thermal motion. This kind of noise is proportional to temperature in an exponential manner: for every 6-8℃ increase in temperature, the dark current almost doubles. In ordina...

In the field of in vitro diagnostics (IVD), the accuracy, speed and stability of temperature control often directly determine the reliability of the test results. Therefore, the thermoelectric cooling (TEC) solution, which combines the advantages of rapid response, high-precision temperature control and vibration-free operation, is gradually becoming the preferred choice for high-end IVD equipment.I. Why is precise temperature control needed in the IVD field? In vitro diagnostics (IVD) covers multiple directions such as PCR, biochemical analysis, immunological testing, and genetic sequencing. The core reactions, such as enzymatic reactions, DNA amplification and antigen-antibody binding, are extremely sensitive to temperature and require a temperature control system with an accuracy of ±0.1℃ and a second-level response capability.Traditional compressor...

In the past, dermatologists often used liquid nitrogen that "gave off white smoke" for freezing treatment of warts - this method had extremely low temperature (-196℃) and was highly effective. It not only caused obvious pain but also easily damaged surrounding tissues and even led to pigmentation. Nowadays, more and more hospitals and medical beauty institutions are beginning to adopt the new TEC cryotherapy device. Compared with liquid nitrogen, it can not only precisely and stably maintain the treatment temperature within the set range, but also achieve programmed temperature rise and fall control, significantly reducing treatment risks, while significantly enhancing patients' comfort and safety. I.Why is TEC technology needed in the field of cold therapy? The limitations of traditional liquid nitrogen freezing technology:❌️ The temperature is fixed at -196℃ and ...

Why do gas alarms sometimes give false alarms or fail to detect? The problem often lies in the temperature: either too high or too low can affect the sensitivity of the gas sensor. To address this issue, we have incorporated a thermoelectric cooler inside the sensor - by precisely controlling the temperature, we enhance the stability, sensitivity, and lifespan of the sensor, effectively preventing false alarms and missed detections. Ⅰ. Why is precise temperature control by TEC necessary for gas sensing?  Many gas sensors (such as infrared NDIR sensors, electrochemical sensors, semiconductor metal oxide sensors, etc.) are highly sensitive to temperature changes: when it's too hot, the signal is prone to drift, and even if there is no gas leakage, the alarm keeps sounding; when it's too cold, the sensor reacts sluggishly, and when a dangerous gas arrives, it fails to...

In the actual application of TEC (thermoelectric cooling sheet), we often receive questions from customers: "After installing the cooling device, why is the temperature difference so small?" "The measured resistance doesn't match the specifications. Could it be that there is something wrong with the product?" After extensive project support and on-site analysis by the FerroTec lead thermoelectric technology team, it was discovered that - the vast majority of these problems do not stem from the quality defects of the TEC itself, but rather from deviations in the testing methods or installation procedures. This article will, based on common cases, systematically clarify the typical misunderstandings of clients in TEC testing, helping everyone to assess product performance more scientifically and accurately.  I. Common Causes of TEC Resistance De...

Professional drones often need to operate in harsh environments with high temperatures, high humidity, high altitudes, and sandstorms—whether inspecting high-voltage power grids or conducting nighttime reconnaissance, they place extremely high demands on the stability of their onboard electronic systems. So how do these precision electronic components overcome harsh environments and maintain stable operation? The answer lies in this key temperature control technology—thermoelectric cooling (TEC). I.What is thermoelectric refrigeration technology? Imagine this: you have a small cooling plate in your hand. As soon as you connect it to a power source, one side immediately cools down, while the other side starts to heat up. This principle was discovered as early as 1834 by the French physicist Jean Charles Peltier and named the Peltier effect: when direct current ...

In the southern sky, during the rainy season or in the high humidity environment on the coast, a lot of water is constantly appearing in the opening of the tower, the performance of the connection is completely decreased, the secondary terminal is closed, and the operation or jumping accident occurs. We usually use kiln heaters, compressor type dehumidifiers, silica dryers, etc. to develop dehumidifying methods. However, this is a trivial method, and the book is incurable. Introducing a new dehumidification method with long-lasting internal drying: The introduction is TEC dehumidification technology. I. Is the dehumidification method not effective? Electric heating device: Heats up moisture and “steams” it. The inside of the tank is dry and dry, and the internal circulation of the water tank is actually there. Once cooled down, the water steamer will undergo hea...