Chlorophyll content (SPAD) I


REQUIREMENTS: Firmware v0.38 or lower (used for older devices which do not have a SPAD calibration, generally device ID 87 and lower).Measures transmission at 940nm and 650nm in order to determine the 'greenness' of a leaf, an indicator of chlorophyll content and nitrogen content. The 940 is used to account for leaf thickness.

[
  {
    "pulses": [
      100,
      100
    ],
    "get_userdef0": [
      1
    ],
    "get_blank_cal": [
      12,
      20
    ],
    "environmental": [
      [
        "relative_humidity",
        1
      ],
      [
        "temperature",
        1
      ],
      [
        "light_intensity",
        1
      ]
    ],
    "pulsesize": 10,
    "pulsedistance": 2000,
    "act_intensities": [
      0,
      125
    ],
    "meas_intensities": [
      2465,
      0
    ],
    "detectors": [
      [
        34
      ],
      [
        35
      ]
    ],
    "meas_lights": [
      [
        12
      ],
      [
        20
      ]
    ]
  }
]
012409 pbi 160 low low res headshot
Created by

Greg Austic


Category

Plants
Connected Macro

Chlorophyll content (SPAD)


Compatible Instruments

MultispeQ beta


Latest Update

Jul 2016