Services Available | |
---|---|
Repair | No |
Calibration | Yes |
Free Support | No |
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。
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。
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) |
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
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) |
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.
The LI190SB requires one differential analog input channel per probe.
LI190SB-L: 7
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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.
This depends on the information contained in the calibration sheet:
大多数 Campbell Scientific 传感器的型号中都带有 –L,它表示用户指定线缆长度。如果传感器型号名称列有 –LX (这里 “X” 是其它的某个字符), 那么该传感器需要用户指定长度,但线缆尾端会配有用于某个独特系统的特殊快速接头:
如果一个传感器的主型号数字的后面没有被指定 –L 或其它的 –LX 字符,那么该传感器将具有固定的线缆长度。在产品页面订购栏中 (Ordering tab) 的描述字段的末尾,会列出线缆的长度。例如 034B-ET 型号的描述字段含有信息:Met One风传感器适用于ET气象站,67英寸线缆 (Met One Wind Set for ET Station, 67 inch Cable)。产品按固定的线缆长度做尾端处理,默认是尾线方式。
如果线缆尾端配有用于某个独特系统的特殊快速接头,则型号尾部的字符会指定该传感器用于哪一个系统。例如,034B-ET 型号表明该传感器是一个 034B 且用于 ET107 系统。
不是每一种传感器都有不同的线缆尾端选项。通过查找传感器产品页面的订购栏 (Ordering tab) 中的两个位置,可以检查某种特定传感器的可用的线缆尾端选项:
如果传感器以 –ET, –ETM, –LC, –LQ, 或 –QD 等版本的型号供应,那么线缆尾端选项已经反映在该传感器的产品型号中。例如,034B 以 034B-ET, 034B-ETM, 034B-LC, 034B-LQ, 和 034B-QD 等型号供应。
所有其它的线缆尾端选项,如果可用,会列在该传感器产品页面的订购栏 (Ordering tab) 中的线缆尾端选项 (“Cable Termination Options) 区域。例如,034B-L 风速风向传感器具有 –CWS, –PT, 和 –PW 等线缆尾端选项,显示在 034B-L 产品页面的 订购栏 (Ordering tab) 位置。
注: 当更新的产品添加到我们的库存中时,一般来说,我们会在单个传感器的产品型号下面列出多种线缆尾端选项,而不是创建多个产品型号。例如,HC2S3-L 具有 –C 线缆尾端选项用于连接到 CS110,而我们并没有使用 HC2S3-LC 产品型号。
Campbell Scientific 的很多传感器都有可行的不同线缆尾端处理选项,包括以下几种:
注: 线缆尾端选项的可行性因传感器而异。例如,传感器可能会有 无选项、两个选项或几个选项可供选择。如果预期的选项没有列在所指定的传感器中,请联系 Campbell Scientific 的应用工程师寻求帮助。