In various industries, accurate temperature measurement is crucial for ensuring quality, safety, and efficiency. One of the most reliable and precise instruments for this purpose is the negative temperature coefficient (NTC) sensor. At Focusens, we specialize in high-quality NTC sensors designed to meet diverse temperature sensing needs. What is an NTC Sensor? An NTC sensor is a type of thermistor whose resistance decreases as the temperature increases. This property makes NTC sensors highly sensitive and accurate for temperature measurements. They are widely used in applications requiring precise temperature control and monitoring. How Do NTC Sensors Work? NTC sensors operate based on the principle that the resistance of certain materials decreases with an increase in temperature. When current passes through the NTC sensor, the voltage drop across it is measured. By applying Ohm's Law (V = IR), the temperature can be calculated from the measured resistance. This relationship allows for accurate temperature readings across a wide range of temperatures. Applications of NTC Sensors NTC sensors are versatile and used in various industries: Automotive Industry: Monitoring engine coolant temperature to ensure optimal engine performance and prevent overheating. Consumer Electronics: Protecting devices like smartphones and laptops from overheating by monitoring internal temperatures. Medical Devices: Providing accurate body temperature measurements in thermometers and patient monitoring systems. Industrial Equipment: Ensuring the safe operation of machinery by monitoring operating temperatures. HVAC Systems: Regulating temperatures in heating, ventilation, and air conditioning systems for energy efficiency and comfort. Advantages of NTC Sensors NTC sensors offer several benefits: High Accuracy: They provide precise and reliable temperature measurements, essential for critical applications. Fast Response Time: NTC sensors quickly react to temperature changes, allowing for real-time monitoring and control. Wide Temperature Range: They operate effectively over a broad temperature range, typically from -55°C to 150°C, making them suitable for various environments. Cost-Effective: NTC sensors are affordable, offering high performance without significant investment. Focusens' NTC Sensors At Focusens, we offer a range of NTC sensors tailored to meet diverse application needs: NTC Thermistor Sensors: Designed for high precision and stability, suitable for applications requiring accurate temperature measurements. High Precision NTC Thermistor Sensors: Ideal for laboratory instruments and medical equipment where exceptional accuracy is essential. NTC Thermistor Probes: Encapsulated in durable materials, these probes are designed for harsh environments and provide reliable temperature sensing. Digital NTC Temperature Sensors: These sensors provide digital output, facilitating easy integration with digital systems and offering enhanced accuracy. Customization Servi...

At Focusens, we understand the importance of precision and safety when it comes to temperature sensing. Our new PTC temperature sensors are engineered to provide high accuracy in measuring temperature and offer critical overcurrent protection in a wide range of applications. These PTC sensors are ideal for systems that require reliable temperature control and the prevention of electrical hazards due to overheating. As industries around the world continue to embrace smart technologies, PTC temperature sensors are becoming an integral part of various systems. From protecting delicate electronic components in consumer devices to ensuring the safety of critical systems in industrial machinery, Focusens' PTC sensors are designed to meet diverse temperature monitoring needs while offering durability and ease of use. What is a PTC Temperature Sensor? A PTC temperature sensor is a type of resistor that changes its resistance when the temperature changes. As the temperature increases, the resistance of the PTC sensor increases sharply. This unique property makes PTC temperature sensors an excellent choice for overcurrent protection, thermal management, and self-regulating heating applications. When the temperature exceeds a certain threshold, the sensor's resistance increases, effectively limiting the current flow and protecting electrical components from overheating or damage. Once the temperature drops, the resistance decreases, allowing the current to flow again. This automatic resetting feature makes PTC temperature sensors highly reliable and cost-effective. Key Features and Benefits of PTC Temperature Sensors The Focusens PTC temperature sensors are designed to offer several advantages that make them the preferred choice for various applications: Self-Regulating Protection: PTC sensors are self-resetting, which means they return to normal operation once the temperature has dropped to a safe level. This feature eliminates the need for manual resets or replacements. High Sensitivity: PTC temperature sensors provide quick response times to temperature changes, ensuring that systems can react immediately to temperature fluctuations or overcurrent events. Wide Temperature Range: Focusens’ PTC temperature sensors are designed to operate over a broad temperature range, making them suitable for applications in both high and low-temperature environments. Durability and Long Life: Built to withstand harsh environments, PTC sensors are durable and long-lasting, offering reliable performance over time. They are especially beneficial for industrial applications where long-term reliability is essential. Cost-Effective: PTC temperature sensors offer high protection at an affordable price point, making them a cost-effective solution for businesses looking to improve safety and reliability without compromising on quality. Versatile Applications: Whether in automotive systems, smart devices, HVAC systems, or industrial machinery, PTC temperature sensors provide versa...

Focusens, a leading provider of innovative temperature sensing solutions, is pleased to announce the availability of its high-quality thermistors for sale. Designed to meet the diverse needs of industries such as automotive, industrial automation, medical devices, and consumer electronics, these thermistors offer precise and reliable temperature measurements. Focusens Launches Premium Thermistors for Accurate Temperature Measurement At Focusens, we understand the critical role that accurate temperature measurement plays in various applications. Our thermistors are engineered to provide high precision and stability, ensuring optimal performance across a wide range of environments. Whether you're developing automotive systems, industrial machinery, medical devices, or consumer electronics, our thermistors are designed to meet your specific requirements. What Are Thermistors? A thermistor is a type of resistor whose resistance varies significantly with temperature. This property makes thermistors ideal for temperature sensing applications. There are two main types of thermistors: NTC (Negative Temperature Coefficient) Thermistors: These thermistors have a resistance that decreases as the temperature increases. They are commonly used in applications requiring precise temperature measurement and control. PTC (Positive Temperature Coefficient) Thermistors: These thermistors have a resistance that increases as the temperature increases. They are often used for overcurrent protection and self-regulating heating applications. Focusens' Thermistor Offerings Focusens offers a comprehensive range of thermistors for sale to suit various applications: NTC Thermistors: Our NTC thermistors are known for their high precision and fast response times, making them ideal for applications such as temperature sensors, temperature probes, and medical devices. High Precision NTC Thermistors: Designed for applications requiring exceptional accuracy, these thermistors are suitable for laboratory instruments, medical equipment, and industrial process control. PTC Thermistors: Our PTC thermistors are designed for overcurrent protection and self-regulating heating applications, offering reliable performance in automotive systems, consumer electronics, and industrial machinery. Linear PTC Silicon Thermistors: These thermistors provide a linear resistance-temperature characteristic, making them suitable for applications requiring precise temperature measurement and control. Applications of Focusens' Thermistors Focusens' thermistors for sale are versatile and can be used in a variety of applications: Automotive Systems: Monitoring and controlling temperatures in automotive batteries, engines, and electrical systems to ensure optimal performance and safety. Industrial Automation: Regulating temperatures in manufacturing processes, machinery, and equipment to maintain quality and efficiency. Medical Devices: Providing accurate temperature measurements in devices such as incubator...

In various industries, accurate temperature measurement is crucial for ensuring quality, safety, and efficiency. One of the most reliable and precise instruments for this purpose is the platinum resistance temperature sensor, commonly known as an RTD (Resistance Temperature Detector). At Focusens, we specialize in high-quality platinum resistance temperature sensors designed to meet diverse temperature sensing needs. What is a Platinum Resistance Temperature Sensor? A platinum resistance temperature sensor is a type of RTD that measures temperature by correlating the resistance of platinum with temperature. As the temperature increases, the resistance of the platinum element increases in a well-defined, repeatable, and nearly linear manner. This property makes platinum resistance temperature sensors highly accurate and stable over a wide temperature range. How Do Platinum RTDs Work? The operation of a platinum resistance temperature sensor is based on the principle that the electrical resistance of platinum increases with temperature. By measuring the resistance of the platinum element, the temperature can be determined using standardized equations, such as the Callendar-Van Dusen equation. This equation provides a precise relationship between resistance and temperature, allowing for accurate temperature measurements. Types of Platinum RTDs Platinum resistance temperature sensors come in various configurations to suit different applications: PT100: This is the most common type, with a resistance of 100 ohms at 0°C. PT100 platinum resistance temperature sensors are widely used in industrial and scientific applications due to their accuracy and stability. PT1000: These sensors have a resistance of 1000 ohms at 0°C. The higher resistance allows for better signal integrity over long distances, making them ideal for applications where the sensor is far from the measurement equipment. Thin-Film RTDs: Constructed by depositing a thin layer of platinum onto a ceramic substrate, these platinum RTDs are cost-effective and suitable for applications where space is limited. Wire-Wound RTDs: These platinum resistance temperature sensors consist of a fine platinum wire wound around a ceramic or glass core. They offer high accuracy and are commonly used in laboratory and industrial settings. Applications of Platinum RTDs Platinum RTDs are versatile and used in various industries: Industrial Automation: Monitoring and controlling temperatures in manufacturing processes to ensure product quality and safety. HVAC Systems: Regulating indoor climates in commercial and residential buildings for comfort and energy efficiency. Medical Devices: Providing precise temperature measurements in equipment like incubators and sterilizers. Automotive Industry: Monitoring engine and battery temperatures to optimize performance and prevent overheating. Food and Beverage: Ensuring proper cooking and storage temperatures to maintain food safety standards. Advantages of Platinum RTDs...

When it comes to precise temperature measurement, T-type thermocouples are a reliable choice. At Focusens, we specialize in high-quality T-type thermocouples, designed for a wide range of applications. This article will explain what a T-type thermocouple is, how it works, and where it is typically used. What is a T-Type Thermocouple? A T-type thermocouple is a type of temperature sensor that measures temperature based on the voltage generated when two different metals are joined together. The “T” in T-type thermocouple refers to the materials used: copper and constantan. Copper is one of the most commonly used metals in thermocouples due to its high conductivity, while constantan is a copper-nickel alloy known for its stable resistance-temperature relationship. The T-type thermocouple generates a voltage that is proportional to the temperature difference between the two junctions (the measuring junction and the reference junction). This voltage can then be measured and converted into a temperature reading. How Does a T-Type Thermocouple Work? The operation of a T-type thermocouple is based on the Seebeck effect. This effect occurs when two dissimilar metals are connected at two different temperatures. The junction at the hotter end of the T-type thermocouple generates a voltage, and this voltage is directly related to the temperature difference between the two junctions. The voltage generated by the T-type thermocouple is very small, requiring precise instruments to measure and convert this voltage into a meaningful temperature reading. The voltage produced by a T-type thermocouple is typically in the range of a few millivolts, and this voltage is then correlated to a specific temperature value using calibration data. Benefits of T-Type Thermocouples T-type thermocouples offer several advantages that make them ideal for specific temperature sensing applications. Here are some of the key benefits: High Accuracy: T-type thermocouples are known for their excellent accuracy and precision in temperature measurement. They provide reliable and consistent temperature readings, making them ideal for applications where precision is critical. Wide Temperature Range: T-type thermocouples can measure temperatures in the range of -200°C to +350°C. While this is not as broad as some other thermocouple types (such as K-type thermocouples), it is well-suited for low-temperature applications. This range makes them particularly useful for cryogenic and laboratory applications. Good Stability: The materials used in T-type thermocouples—copper and constantan—are known for their excellent stability over time. This means T-type thermocouples can provide accurate measurements for extended periods, making them ideal for long-term use in stable environments. Cost-Effective: T-type thermocouples are relatively inexpensive compared to other temperature sensors, such as RTDs or infrared sensors. Their low cost makes them an attractive option for many applications where budge...

In the world of industrial sensing, the need for robust, reliable, and precise temperature measurement is paramount. Traditional sensors often buckle under the strain of harsh environmental conditions, leading to inaccurate readings and costly downtime. Now, there's a solution that's turning heads: TPE (Thermoplastic Elastomer) overmolded temperature sensors. These innovative devices are engineered to withstand extreme environments while maintaining exceptional accuracy, making them ideal for a wide range of demanding applications. Understanding TPE Overmolding: A Deep Dive So, what exactly is TPE overmolding and why is it such a game-changer? At its core, TPE overmolding is an advanced manufacturing process where the delicate temperature-sensing element is entirely encapsulated within a layer of thermoplastic elastomer. This isn’t a simple coating; it’s a full protective shell that’s both waterproof and chemically resistant. The TPE material is meticulously selected to offer both exceptional protection and excellent thermal conductivity. This ensures the sensor's ability to accurately detect temperature changes while being safeguarded from the external elements. Key Benefits of TPE Overmolded Sensors TPE overmolded temperature sensors aren’t just about protection; they offer a host of benefits: Superior Environmental Protection: One of the most significant advantages is their resistance to moisture. These sensors are rated IP67 or IP68, meaning they are completely waterproof and capable of withstanding even submersion. This level of protection is vital in applications exposed to rain, splashes, or even full immersion. Chemical Resistance: Beyond water, TPE overmolding also protects against a wide variety of chemicals, ensuring the sensor’s longevity and continued accuracy. This is particularly important in industrial settings where exposure to corrosive agents is common. Mechanical Resilience: These sensors are not only robust but also flexible and durable. They offer excellent resistance to mechanical shocks and vibrations, ensuring stable performance in dynamic environments. The optional strain relief further safeguards the cable connections from wear and tear. Accurate and Consistent Readings: The TPE material used ensures excellent thermal conductivity, enabling accurate temperature measurements within a customizable range, often between -40°C to +105°C. Furthermore, the sensor's accuracy can be tailored to meet specific project needs, offering high precision with customizable tolerance ranges. UV Resistance: The use of UV-resistant TPE ensures the sensors maintain their integrity, even when exposed to prolonged sunlight, making them suitable for outdoor applications without degradation.   Technical Specifications That Matter The robust performance of TPE overmolded sensors stems from their impressive technical specifications: Temperature Range: These sensors are designed to operate across a broad temperature range, typically spanning f...

In today’s tech-savvy world, magnetic switches are quietly at the core of many devices we use every day—whether it's the door of your house, the car you're driving, or the machinery in factories. With their non-contact, reliable operation and long lifespan, these switches are essential in keeping things running smoothly. At Focusens, we offer a variety of magnetic switches tailored for different industries, ensuring quality and precision. Let’s explore how they work, their types, and where they make a real impact. How Do Magnetic Switches Work? Magnetic switches work by using the power of a magnetic field to control electrical circuits. Unlike traditional switches that need physical contact, magnetic switches offer a non-contact solution, making them more durable and reliable. At the heart of many of these switches is the reed switch—a simple, yet ingenious component. Imagine two tiny metal reeds inside a glass tube. When a magnet gets close, the reeds pull together, closing the circuit and allowing current to flow. When the magnet moves away, the reeds spring apart, opening the circuit and cutting off the current. This effortless, non-contact mechanism ensures a long-lasting performance, free from mechanical wear. Types of Magnetic Switches There’s no one-size-fits-all solution in the world of switches. That’s why magnetic switches come in a variety of types: Normally Open (NO) The switch remains open until a magnet is nearby, completing the circuit. Think of it as your door switch in a security system—activated when needed. Normally Closed (NC) In this setup, the circuit is normally closed, and it only opens when a magnet triggers it. It’s often used in alarms that go off when a door or window opens unexpectedly. NO-NC Changeover Type This versatile type can toggle between open and closed states depending on the presence of a magnetic field, ideal for complex systems like industrial automation. Where Are Magnetic Switches Used? The beauty of magnetic switches lies in their versatility. They can be found in many different environments, helping to make processes smoother and safer. Home Security In home security, these switches detect if doors or windows are open or closed. The moment a magnet door switch is triggered, it sets off an alarm, ensuring your home is protected—no wires needed. Automotive Systems In your car, magnetic switches help monitor the door status, warning you if it’s not properly closed. They also play a role in seat occupancy detection, adjusting airbag deployment for safety. Industrial Automation Magnetic switches are key in industries like manufacturing, helping machines know the exact position of mechanical parts. This precision helps streamline production and ensures quality. Why Magnetic Switches Are a Game Changer Here’s why magnetic switches are a must-have for so many applications: Non-Contact Operation They don’t touch anything, so there’s no wear and tear. This makes them more durable and reliable, especially in har...

RTD sensors, or Resistance Temperature Detectors, are widely used for measuring temperature due to their accuracy and reliability. These sensors operate on the principle that the resistance of certain metals, typically platinum, changes with temperature. The PT1000 sensor is a popular type of RTD sensor, and it operates based on the same fundamental principle. Here’s how RTD sensors, like the PT1000 sensor, measure temperature based on changes in resistance: 1. Understanding the PT1000 Sensor The "PT" in PT1000 refers to platinum, the material commonly used for the RTD element. The number "1000" signifies that the sensor has a resistance of 1000 ohms at 0°C, the reference temperature. The PT1000 sensor typically consists of a thin wire or a film of platinum wrapped around a ceramic core. Platinum is chosen due to its near-linear and repeatable change in resistance with temperature, making it ideal for accurate temperature measurement. RTD sensor manufacturers often favor platinum for its reliability in various industries. 2. Principle of Operation: Resistance and Temperature RTD sensors, like the PT1000 sensor, function based on the relationship between temperature and resistance. Platinum, like most metals, has a positive temperature coefficient (PTC), meaning its resistance increases as the temperature rises. For a PT1000 sensor, the resistance increases by approximately 3.85 ohms per degree Celsius. If the temperature increases by 1°C, the sensor's resistance increases by 3.85 ohms. This predictable, near-linear relationship makes the PT1000 a reliable choice for precise temperature measurements, which is why RTD suppliers value this sensor type for their product portfolios. 3. Measuring Resistance to Determine Temperature To measure temperature using a PT1000 sensor, an electrical circuit measures the resistance of the sensor. Typically, a Wheatstone bridge or a 4-wire measurement method is used for greater accuracy. Here’s how the process works: · Current is passed through the RTD sensor: A known current is applied to the RTD sensor, and the voltage drop across the sensor is measured. · Resistance is calculated: Using Ohm’s Law (V = IR), the resistance of the PT1000 sensor is calculated based on the measured voltage and the known current. · Temperature is calculated: The resistance value is compared to a pre-established temperature-resistance curve for platinum, providing an accurate temperature reading. 4. Standard Temperature-Resistance Relationship for PT1000 There are two typically TCR（temperature coefficient of resistance）of PT1000/PT100 ,that is 3850 ppm/K and 3750 ppm/K, Focusens mainly use the one with 3850. Our PT1000 sensor follows a specific standard for resistance values at different temperatures. TCR = 106. (R100– R0)/ 100 · R0  [ppm/K] For example: · At 0°C, the PT1000 has a resistance of 1000 ohms. ·&nbs...