Virtual Electronics Company 


ph: +919412072697

Sensors

  • Temperature & Relative Humdity Sensor

     
    Type: Digital Sensor. 
    Temperature Range: - 40 to 123.8 ° C. 
    Accuracy: ± 0.5 ° C @ 5 to 40° C. 
    Resolution: 0.01 ° C Typical. 

    RH Range: 0 to 100 %.
    Resolution: 0.5 % RH Typical.
    Accuracy: ± 2% @ 20 to 80 %
    Long term stability: Typ <1%RH/ Year
    Repeatability: ± 0.1 %. 
    Output: Digital (2 wire communication)

  • Wind Speed Sensor

    Sensor: 3 Cup Anemometer 
    Sensing: Reed switch/magnet provide 1 pulse per rotation
    Range: (~5 kph to over 200 kph)
    Accuracy: Better than 0.5 m/s
    Current Consumption: 7 M amp @ 5 V DC 
    Rotor Diameter: 125 mm
    Output: 1 pulse per rotation 2.5 mph per Hz
    rugged Delrin body with bronze and Rulon bushings

  • Wind Direction Sensor

    Sensing: magnetic Hall Effect sensor
    Range: 360 °  , zero dead band
    Resolution: 12 bit or 0.025 ° 
    Accuracy: +/-0.3 to 0.5% of signal range

    Supply voltage 4.5 to 5.5 VDC
    Current 15 mA typical
    Output 5% to 95% of input voltage (0.25 to 4.75VDC)

  • Rainfall

    Sensor: Tipping Bucket Rain gauge.
    Range: 100mm / hour
    Resolution: 0.25mm / 0.20mm.
    Sensing: Magnet & Reed Switch.
    Capacity: Unlimited.
    Accuracy: 5% @ 25mm/hr.
    Output: Switch closure

  • Water Temperature Sensor

    Range: - 10 to 110 ° C.
    Accuracy: ± 0.5 ° C 
    Resolution: 0.1 ° C 
    Output: Analog (10 mV / ° C)

  • Soil Temperature Sensor

    Range: - 10 to 110 ° C.
    Accuracy: ± 0.5 ° C 
    Resolution: 0.1 ° C 
    Output: Analog (10 mV / ° C)

  • Air Pressure Sensor

    Type: Piezo-resistive Silicon membrane
    Range: 150 mb to 1150 mBar
    Input Signal: 5V DC
    Output signal: 0.2 to 4.8 V DC

  • Solar Radiation Sensor (Pyranometer)

    For Shortwave Radiation
    Spectral Range: 300 - 1100 nm
    Radiation Range: 0 – 2000 w/m2
    Cosine response @ 45° zenith angle: ± 4 %
    Cosine response @ 75° zenith angle: ± 10 %
    Absolute accuracy: ± 5 %
    Repeatability: ± 1 %
    Output: 0.200 mV / Wm-2
    Sensitivity: Custom calibrated to exactly 5.00 W m-2/ mV
    Operating environment - 40 to 55 °C; 0 to 100% RH

  • Solar Radiation Sensor (Pyranometer)

    For Global Radiation
    ISO classification second class
    Spectral range 305 - 2800 nm
    Sensitivity (nominal) 15 μV/ W.m-2
    (Each Sensor is calibrated separately)
    Temperature range -40 - +80 °C
    Range 0 to 2000 W.m-2
    Temperature dependence < 0.1%/°C
    Calibration traceability WRR

  • Water Level Sensor (Shaft Encoder Type)

    Sensor: Optical Encoder with Float
    Sensing: Through Opt coupler 
    Resolution: 1 mm
    Material Used: Non-corrosive.
    Output: 2 channel quadrature pulse

  • Soil Moisture Sensor

    Type: Gipsum block
    Range: 0 to 200 Centibar
    Output: Change of Resistance

  • Water Level Sensor (Pressure Type)

    Range:0 to 10, 0 to 35, 0 to 100 to 0 to 400 meter H2O 
    combined accuracy: 0.5% FS 
    Signal output: 4~20mA 
    Excitation: 9~36V DC
    Cable Type: Vented Cable for Air Pressure Compensation
    Mechanically robust
    Safe humidity protection
    Integrated over-voltage protection

  • Water Current Sensor

    The propeller type current meter is a world recognized instrument. This current meter is suspended in the water using a cable with sinking weight or wading rod and will accurately measure stream flow velocities from 0.01 to 3.5 meters per second with Multiple propellers. Magnetic current meter has a permanent magnet mounted on its shaft. In every revolution of the cup wheel the magnet actuates the proximity resulting in one make and break of the contacts. The free ends of the proximity switch cable are connected to an automatic counter, which registers one count for every revolution of the wheel. The calibration chart provided with the meter gives the velocity in m/sec. Output: switch closure

  • Evaporation Sensor

    Sensor: Optical Encoder with Float
    Sensing: Through Opt coupler 
    Range: 30mm to 300 mm.
    Resolution: 0.25 mm
    Material Used: Non corrosive.
    Pan Size: 1220 mm diameter.
    Pan Mounting: Timber Frame
    Pan bird gauge: Square Steel mesh
    Output: 2 channel quadrature pulse

  • Snow Water Equavelent Sensor (Snow Gauge)

    The load cell used for the measurements was a Cantilever beam type 200 Kg capacity with 3.0 mv/V rated output and a non-linearity of 0.03 FSO. The load cell is corrosion resistant (stainless steel) and hermetically sealed for use in outdoor environment.
    The snowfall is received on a MS platform of 50cmx50cm size. This area corresponded to 120 cm of SWE. The load cell was fixed between a bottom MS plate and a top MS plate, both of 4 mm thickness, through a separate fixing arrangement so that the load is uniformly transmitted to the centre of the load cell. Dimensions of the top plate were 490mm x 490mm whereas that of the bottom plate were 479mm x 479mm, thereby providing a 5 mm gap to facilitate a free vertical movement of the top plate during loading

  • Leaf Wetness Sensor

    Sensor Output: Resistance varies from above 3,000,000 ohms when dry to around 1,000 ohms when wet
    Sensor Range: 0 to 100% of the dew range, frost and freezing conditions will not harm the sensor
    Response Time: 0 to 100% relative dew within six minutes
    Output: voltage output (Analog)

  • Ultra-voilet Sensor

    Output: Calibrated to approx 0.1 mV per µmol m-2 s-1
    Range: 250 to 400 nanometers in µmol m-2 s-1
    (full UV in sunlight: 170 µmol m-2 s-1)
    Input Power: None, self-powered
    Operating Environment: outdoor use. 
    Can be submerged underwater.
    Materials: Photodiode with a fully-potted PVC head.

  • Porus Tube Piezometer

    This is a porous tube of annular cross-section, 37 mm outer dia x 6 mm wall thickness and available in two sizes 12 Inch & 24 Inch long. The porosity of the porous tube is chosen according to site conditions. Unless specifically requested, the porous tube filter has a grain size of 60 micron.

  • Infrared Remote Temperature Sensor

    This sensor is used to measures remote temperatures of road 
    surfaces, plant canopies, soil, snow, and water surfaces as 
    well as sky temperature (net long wave radiation)
    Field of view: 22° half angle 
    Output Target temp. 60 μV per °C difference from sensor body
    Sensor body temperature: 0-2500 mV 0-2500 mV
    Accuracy: On -10 to 65 °C 
    ±0.2 °C absolute accuracy
    ±0.1 °C uniformity
    ±0.05 °C repeatability
    Accuracy: On -40 to 70 °C 
    ±0.5 °C absolute accuracy
    ±0.3 °C uniformity
    ±0.1 °C repeatability and uniformity
    Response time < 1 second to changes in target temperature
    Input power 2.5 V excitation
    Operating environment -55 to 80 °C; 0 to 100 % RH 
    (non-condensing)

  • Quantum Sensor

    Quantum sensors are often used to quantify the light available in greenhouse settings. The line quantum sensor is especially  helpful, as it provides a spatial average. 
    Absolute accuracy ± 5 %
    Uniformity ± 3 % 
    Repeatability ± 1 %
    Output: 0 to 5 V (4.0 V = full sunlight 2,000 μmol m-2 s-1)
    Input power 5 to 5.5 VDC
    Current draw 285 μA
    Operating environment - 40 to 55 °C; 0 to 100% relative humidity. Designed for continuous outdoor use. Can be submerged under water (with or without mounting screw).

    Line Quantum Sensors is also available

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ph: +919412072697