Introduction A humidity sensor is a low-cost electronic device, used for measuring the humidity of the air. They are also known as hygrometers. Humidity sensors can measure the humidity as relative humidity, absolute humidity, and specific humidity. Relative humidity sensors contain a humidity sensing element with a thermistor for measuring temperature. In the case of …
What Is Atmospheric Humidity Sensor and How Does It Work Read More »
Working Principle A temperature sensor is a device used for measuring temperature. A typical atmospheric temperature sensor uses a resistance temperature detector (RTD) element for measuring temperature. The RTD element is made by wrapping a fine wire around a ceramic or glass core. Generally, the wire is made of copper, nickel, or platinum. These sensors …
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Introduction A wind speed sensor is a device used for measuring the speed of the wind. They are useful for predicting the wind speed and also help in forecasting it. There are different types of wind speed sensor models. The working principle for main wind speed sensor models are discussed below: Propellor Type Wind Speed …
Introduction A soil temperature sensor is a device used to measure and monitor the temperature of the soil. They can help you determine the best time to sow or plant your garden. Thermistors, thermocouples, thermocouple wires, and averaging thermocouples are the different types of designs used for a soil temperature sensor. They are usually packed …
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Introduction A soil humidity sensor measure and monitor the amount of water content in the soil. The conventional gravimetric measurement needs more time in a lab & also dedicated labor. A soil humidity sensor uses other properties like electrical resistance or dielectric constant to measure the moisture content. They are very handy for farmers and …
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Introduction A CO2 sensor is a device that can measure the concentration of carbon dioxide(CO2) in a given volume of gas. They have wide applications from controlling indoor air quality to regulating airflow in mines. The concentration of CO2 can be calculated either chemically or using non-dispersive infrared method(NDIR). Modern CO2 sensors are compact-sized and use the NDIR …
Introduction Evaporation sensors measure the rate of evaporation of water. It is used by researchers to analyze the climate and take readings, whereas farmers use it for making a budget. A conventional evaporimeter is a large & bulky setup used for the same purpose. But, modern electronic evaporation sensors are way too small and does …
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Introduction An illuminance light sensor senses the presence of light. Photodiodes and photoresistors are two types of devices used to sense light. They are responsible for the ambient screen brightness in your smartphone. When the photosensor in your phone detects high intensity it increases your phone’s brightness automatically. This is one of the many applications …
What is an Illuminance Sensor? | How does it work? Read More »
Introduction Particulate matters(PM) refer to the liquid or solid matter suspended in the air. PM2.5 refers to the particles of size 2.5 micrometers or smaller. These coarse particles enter the body and can be found even inside our lungs. Finer particles even enter our bloodstream as well. A PM2.5 sensor uses the scattering of light to find …
What is PM2.5 Particulate Sensor? | How does it work? Read More »
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