空调温度传感器探测器 & 电缆

The working principle of the air conditioning ambient temperature sensor is to use a thermistor to sense the temperature of the indoor environment. The thermistor is a component whose resistance value changes with temperature, and its resistance value is proportional to the temperature. In air conditioning systems, the ambient temperature sensor is usually connected to a circuit, which is called a temperature sensor circuit. This circuit contains a constant current source and a voltage comparator.
The constant current source is used to provide a constant current, which generates a voltage through the thermistor, while the voltage comparator is used to convert the voltage signal into a digital signal for processing by the control system. When the resistance of the thermistor changes, the voltage comparator converts this change into a digital signal. This signal is passed to the control system, and the air conditioning system can adjust the cooling or heating operating mode according to changes in indoor temperature, thereby achieving indoor temperature control.

Waterproof NTC 10K 1% 3950 Thermistor Temperature Sensor Probe, 1m Extension Cable, Temperature Detector

Air Conditioning Temperature Sensor 5k 10k 15k 20k 50k 100k Air Conditioner Tube Sensor Rubber Head Copper Head

Air Conditioning Temperature Sensor Probe 25k Air Conditioner Tube Sensor

空调温度传感器铜头是铜管的检测, 快速温度传导; 橡胶头通常用于检测环境温度, 耐腐蚀性, 高可靠性.
使用高级传感技术, 温度可以非常准确地测量，误差范围很小, 满足您对准确温度测量的需求.
This product has a large measuring temperature range, and can be successfully measured in both low temperature and high temperature environment, providing you with a stable temperature measurement environment.
The design is reasonable, the installation is simple and quick, and both professionals and beginners can easily complete the installation of the equipment.
Whether it is a home, a factory, a laboratory or an office, or even a harsh environment, such as a high humidity and high temperature environment, the product can exert excellent performance.
笔记:
Due to manual measurement, please allow an error of 1-3mm. Please ensure that you do not mind before bidding.
Due to the differences between different monitors, the images may not reflect the actual color of the item.

The air conditioner temperature sensor is connected in series with a resistor, and generally uses 5V (+3.3V used by some air conditioners) to divide the voltage, and the divided voltage is sent to the CPU. Since the air conditioner temperature sensor uses a negative temperature coefficient thermistor, 那是, its resistance decreases when the temperature rises and increases when the temperature decreases. 所以, the input voltage rule of the CPU is: 当温度升高时, the input voltage of the CPU increases, and when the temperature decreases, the input voltage of the CPU decreases. This changing voltage enters the CPU for internal analysis and processing to determine the current tube temperature or room temperature, and controls the operating status of the air conditioner through internal programs and manual program settings.
Since the sampling voltage sent to the CPU will vary within a wide range as the temperature changes, 25°C is generally used as the standard during design. The sampling voltage is designed to be half the supply voltage to allow sufficient margin for voltage changes due to temperature changes. If the sampling voltage is designed to be too high or too low, it will not be able to properly reflect the current temperature changes.