This product is not available for new orders. We recommend ordering: LI190R-L.
| Services Available | |
|---|---|
| Repair | No |
| Calibration | Yes |
| Free Support | No |
概览
LI190SB 光量子传感器可精确地监测光合量子通量密度（PPFD），即可以是自然光源，也可以是人工光源。直接连接到我们的数据采集器，适用于生长箱或温室应用。
优势与特点
- Compatible with most Campbell Scientific data loggers
- Ideal for growth chambers and greenhouses
- Measures Photosynthetic Photon Flux Density (PPFD) in both natural and artificial light
- Compatible with the CWS900-series interfaces, allowing it to be used in a wireless sensor network
图像
技术说明
LI190SB 使用固定在余弦校正过的头部的硅光电检测器来测量太阳辐射，传感器的线缆上配有并联电阻，将微安信号转换成毫伏信号，这样LI190SB就可以直接由坎贝尔数据采集器来测量。
LI190SB 光量子传感器可精确地监测光合量子通量密度（PPFD），即400 到 700 nm波段内单位时间单位面积上的入射光量子数目。因为PPFD描述了光合活动，因此LI-190SB适用于生长箱或温室应用。
产品规格
| Light Spectrum Waveband | 400 to 700 nm |
| Calibration | ±5% traceable to the U.S. National Institute of Standards Technology (NIST) |
| Sensitivity | Typically 5 μA per 1000 μmoles s-1 m-2 |
| Linearity | Maximum deviation of 1% up to 10,000 μmoles s-1 m-2 |
| Shunt Resistor | ±15% over thermal conductivity range (from 0.1 to 1.7 W m-2 K-1) |
| Stability | < ±2% change (over a 1 year period) |
| Response Time | 10 μs |
| Temperature Dependence | 0.15% per °C (maximum) |
| Cosine Correction | Cosine corrected up to 80° angle of incidence |
| Operating Temperature | -40° to +65°C |
| Relative Humidity | 0 to 100% |
| Detector | High stability silicon photovoltaic detector (blue enhanced) |
| Sensor Housing | Weatherproof anodized aluminum case (with acrylic diffuser and stainless-steel hardware) |
| Diameter | 2.38 cm (0.94 in.) |
| Height | 2.54 cm (1.00 in.) |
| Weight | 28 g (1 oz) |
兼容性
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
数据采集器
| Product | Compatible | Note |
|---|---|---|
| 21X (retired) | ||
| CR10 (retired) | ||
| CR10X (retired) | ||
| CR200X (retired) | ||
| CR206X (retired) | ||
| CR211X (retired) | ||
| CR216X (retired) | ||
| CR23X (retired) | ||
| CR295X (retired) | ||
| CR3000 (retired) | ||
| CR500 (retired) | ||
| CR5000 (retired) | ||
| CR510 (retired) | ||
| CR6 | ||
| CR800 (retired) | ||
| CR850 (retired) | ||
| CR9000 (retired) |
Additional Compatibility Information
Mounts
To ensure accurate measurements, the sensor should be leveled using an LI2003S leveling fixture, which incorporates a bubble level and three adjusting screws. The LI2003S leveling fixture mounts to a tripod or tower using the CM225 mount. The LI190SB should be mounted away from all obstructions and reflective surfaces that might adversely effect the measurement.
Data Logger Considerations
The LI190SB requires one differential analog input channel per probe.
常见问题解答
LI190SB-L: 3
展开全部收起全部
-
This version is purchased directly from LI-COR and will not work directly with Campbell Scientific data loggers without modifications.
-
The LI190SB-L measures photosynthetically active radiation (PAR), a spectral range of solar radiation from 400 to 700 nm. This is the energy that plants use during photosynthesis. Measurements with the LI190SB-L are reported as photosynthetic photon flux density (PPFD).
The LI200X-L measures total solar radiation from 400 to 1100 nm. Measurements are usually reported in units of W/m2.
-
The information included on a calibration sheet differs with each sensor. For some sensors, the sheet contains coefficients necessary to program a data logger. For other sensors, the calibration sheet is a pass/fail report.