Types of sensors

    In layman's terms, a sensor converts the measured signal into an electrical signal or other special form of signal. The type of sensor varies depending on the signal being measured. Sensors are the basic components of automation and smart products. If the CPU is the brain, then the sensor is its senses. It is responsible for collecting the required information and converting the information into a signal that the CPU can recognize, so that the CPU can collect, analyze and process. It also has a very important feature, which is to quantize the signal to form a specific data. With the development of science and technology, there are more and more subdivision fields of sensors, and the sensitivity and accuracy of sensors are getting higher and higher.

    The human body has many very subtle and sensitive organs and nerves that transmit changes in the environment around the human body to the brain. Then might as well classify sensors according to human senses.

    The main senses of the human body are vision, touch, taste, smell, hearing and so on.

    Vision, the human body relies on the eyes to recognize signals. These signals include color, image, brightness, presence, distance, speed, etc. The corresponding sensors include color sensors, image sensors, photoelectric sensors, laser sensors, etc.;

    Tactile, the human body uses the skin to identify signals. These signals include pressure, push, pull, friction, cold and heat, pain, impact, vibration, etc. The corresponding sensors include pressure sensors, tension sensors, temperature sensors, vibration sensors, proximity switches, and travel switches Wait;

    Taste, the human body uses the tongue to recognize signals, mainly the tastes such as sour, sweet, bitter, spicy, salty, etc. Correspondingly, there are related sensors that detect these signals;

    Smell, the human body uses the nose to set different signals. It mainly contains various scents, odors, dust and other gas components. Correspondingly, there are sensors for each gas component, such as measuring exhaust gas, alcohol concentration, PM2.5, smoke, etc. Sensor

    Hearing, the human body recognizes signals by ears, mainly including the level and strength of the sound, and the corresponding sound sensor.

    The above is just a list of some conventional signal sensors, and there are some very professional or special sensors used in the field, such as measuring biological signals, seismic waves, electromagnetic waves, nuclear energy, wind energy, electric energy, solar energy, vacuum, high pressure, pH, etc.

    (huiputech)