Most remote sensors used in agriculture measure the amount of light reflected and/or emitted from the object (figure 1). In growing plants, the amount of reflected light at specific wavelengths is sometimes associated with chlorophyll content or plant health.Most remote sensorsremote sensorsRemote sensing is used in numerous fields, including geography, land surveying and most Earth science disciplines (for example, hydrology, ecology, meteorology, oceanography, glaciology, geology); it also has military, intelligence, commercial, economic, planning, and humanitarian applications, among others.https://en.wikipedia.org › wiki › Remote_sensingRemote sensing - Wikipedia used in agriculture measure the amount of light reflected and/or emitted from the object (figure 1). In growing plants, the amount of reflected light at specific wavelengths is sometimes associated with chlorophyll content or plant health.27 Feb 2019
How do nitrogen sensors work?
a sensor that calculates exactly how much nitrogen a crop needs is slashing fertiliser use in field trials. The system, which is mounted on a tractor, shines rapid pulses of red and infrared light onto the leaf canopy of the crop, with the sensors detecting the reflected light.30 Sept 2004
What is a nitrogen oxide sensor used for?
The NOx (Nitrogen Oxide) Sensor is used in diesel vehicles to detect the level of NOx gas emitting from the engine. Because of strict government emissions regulations, it is imperative that all owners of vehicles outfitted with this sensor make certain that their vehicle is operating in full compliance.
How many NOx sensors are there?
Most engines feature two NOx sensors: an upstream and downstream sensor.
What kind of sensor is a nitrogen dioxide sensor?
Article Details. Low-cost gas-sensitive electrochemical (GSE) nitrogen dioxide (NO2) sensors are used for both indoor and outdoor monitoring. The sensors are stable, long lasting, require very little power and are capable of accurate measurement.17 Sept 2020
How does a nitrogen dioxide sensor work?
The nitrogen dioxide sensor module works on the electrochemical principle. It works based on the diffusion of NO2 gas into the sensor which results in the production of an electrical signal proportional to the NO2 concentration. It allows accurate and reliable measurement despite low concentrations of Nitrogen dioxide.
What is nitrogen dioxide used for?
Uses. is used as an intermediate in the manufacturing of nitric acid, as a nitrating agent in manufacturing of chemical explosives, as a polymerization inhibitor for acrylates, as a flour bleaching agent, and as a room temperature sterilization agent.
What is a NO2 sensor?
Nitrogen Dioxide sensor designed to measure low ambient levels of NO2 associated with the irritation of the eyes, nose, throat, and lungs.
What are the symptoms of nitrogen dioxide?
- New or worsening cough and/or wheezing (most common)
- Eye, nose or throat irritation.
- Light-headedness or headache.
- Dyspnea (shortness of breath)
- Chest tightness.
- Choking.
- Chest pain.
- Diaphoresis (sweating)
How does a soil NPK sensor work?
Principle of optical NPK sensors is based on the interaction between incident light and soil surface properties, such that the characteristics of the reflected light vary due to the soil physical and chemical properties.