When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Soil moisture sensor - Wikipedia

   en.wikipedia.org/wiki/Soil_moisture_sensor

   A simple soil moisture sensor for gardeners. Soil moisture sensors measure the volumetric water content in soil. [1] Since the direct gravimetric measurement of free soil moisture requires removing, drying, and weighing of a sample, soil moisture sensors measure the volumetric water content indirectly by using some other property of the soil, such as electrical resistance, dielectric constant ...

3. TDR moisture sensor - Wikipedia

   en.wikipedia.org/wiki/TDR_moisture_sensor

   The sensor contains a waveguide consisting of two, three, or more parallel wires which is connected via a coaxial cable to a voltage pulse generator which sends precisely defined voltage pulses into the sensor. As the pulse travels along the waveguide its progress varies depending on the moisture content of the material being examined.

4. Leaf sensor - Wikipedia

   en.wikipedia.org/wiki/Leaf_sensor

   Precision irrigation monitoring using the SG-1000 leaf sensor and commercial data loggers for irrigation control has been achieved in recent years. [12] Researchers have found a direct correlation between leaf thickness and Relative Water Content (RWC) of plant leaves using the SG-1000 Leaf Sensor under field conditions.

5. Irrigation controller - Wikipedia

   en.wikipedia.org/wiki/Irrigation_controller

   Some controllers have additional features such as multiple programs to allow different watering frequencies for different types of plants, rain delay settings, input terminals for sensors such as rain and freeze sensors, soil moisture sensors, weather data, remote operation, etc. There are two basic types of controllers, electric and hydraulic.

6. Moisture meter - Wikipedia

   en.wikipedia.org/wiki/Moisture_meter

   Measuring water leakage in exterior wall with Trotec T660 Moisture Measuring Device, using dielectric measurement method (indicative). Moisture meters are measuring instruments used to measure the percentage of water in a given substance, as physical properties are strongly affected by moisture content and high moisture content for a period of time may progressively degrade a material.

7. Precision agriculture - Wikipedia

   en.wikipedia.org/wiki/Precision_agriculture

   Moisture sensors [55] in the soil determine the best times to remotely water plants. The irrigation systems can be programmed to switch which side of tree trunk they water based on the plant's need and rainfall. [46] Innovations are not just limited to plants—they can be used for the welfare of animals.