The Mini Quantum Sensor LS-C is a miniaturised and flat sensor that can be placed close to leaves in small spaces, for example within cuvettes. The LS-C measures photosynthetically active radiation (PAR).
The LS-C is well suited for light incident perpendicular to the surface between -30° and +30°. For a completely cosine-corrected sensor, see MQS-B.
Fig. 1 Typical response between 350 nm and 750 nm of a LS-C sensor. The solid line shows the ideal response of a photon flux sensor for photosynthetically active radiation.
For comparison Fig. 2, shows the response to energy flux rate from 350 – 750 nm.
Design: | Small versatile waterproof mini quantum sensor for selective PAR measurement, cosine corrected for light incident at an angle between -30° to +30° from surface normal for PPFD (photosynthetic photon flux density) measurement, with base plate for screw connection. |
Sensor housing: | Black plastic |
Diffuser material: | Perspex |
Signal detection: | High stability silicon photovoltaic detector with filter set for PAR correction (see “General Features” for typical sensitivity) |
Signal output: | Typically- 10 μA / (1000 μmol m-2 s-1) |
Temperature coefficient of photodiode: | 0.01 %/K |
Absolute calibration: | ± 10% |
Immersion coefficient: | Typically 1.15 |
Angular dependence: | Error < 3% for angle between -30° and +30° from normal axis (see details for typical response) |
Operating temperature: | – 5°C to + 45°C |
Cable length: | 3 m |
Connector: | BNC |
Size: | Base plate: 12 mm x 7 mm x 1 mm (H x W x L); sensor housing 5 mm x 7.5 mm x 7 mm (H x W x L); diffuser diameter: 3 mm |
Weight: | 26 g |