强健的4分量净辐射表，只需要很小的维护
概览
NR01 是一种科研级的净辐射表，测量入射短波辐射和长波红外辐射，相对于地表反射的短波辐射和向上长波红外辐射的能量平衡。我们的数据采集器可以测量NR01的输出信号和控制它的内部加热器。这种净辐射表为科研级的能量平衡研究提供了专业的解决方案。
优势与特点
- Internal RTD provides temperature compensation of measurements
- Research-grade performance
- Internal 1-W heater reduces formation of dew and melts frost
- Separate outputs of short-wave and long-wave infrared radiation for better accuracy and more thorough quality assurance
- Robust—only requiring limited maintenance
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技术说明
NR01 包含成对的短波辐射表和长波辐射表，一组短波辐射表和长波辐射表朝上，另一组朝下。短波辐射表测量短波辐射，长波辐射表测量远红外辐射。
NR01 包含内置的RTD传感器用来测量辐射表的内部温度，以及1-W的加热器用来最小化露的生成和熔化霜。为了减少功率消耗，通常延时启动加热器，仅当太阳辐射小于 20 W/m2时才启动。
坎贝尔的CR3000 和 CR5000 数据采集器适合测量这种净辐射表。也可采用CR1000 数据采集器，不过需要4WPB100 模块来测量净辐射表的内部温度。
产品规格
| Sensor | Hukseflux’s SR01 ISO-class, thermopile pyranometers, IR01 pyrgeometers, PT100 RTD |
| Measurement Description | Measures incoming and outgoing short-wave and long-wave radiation |
| Response Time | 18 s |
| Sensitivity | 10 to 40 μV W-1 m2 |
| Expected Output Range | -0.1 to +50 mV |
| Expected Accuracy for Daily Totals | ±10% |
| Heater | 90 ohm, 1.6 W (at 12 Vdc) |
| Operating Temperature Range | -40° to +80°C |
| Heater Current Drain | ~140 mA |
| Dimensions | 26.3 x 11.3 x 12.1 cm (10.4 x 4.4 x 4.8 in.) |
| Weight |
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Pyranometer |
|
| Spectral Range | 305 to 2800 nm |
Pyrgeometer |
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| Spectral Range | 4500 to 50,000 nm |
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 |
|---|---|---|
| CR1000X | A 4WPB100 PRT Bridge Module is required to measure the internal RTD. | |
| CR3000 (retired) | ||
| CR6 | ||
| CR800 (retired) | ||
| CR850 (retired) |
固定设备
| Product | Compatible | Note |
|---|---|---|
| 26120 |
Additional Compatibility Information
Mounting
To avoid shading or reflections and to promote spatial averaging, the NR01 should be mounted at least 1.5 m above the ground or crop canopy and away from all obstructions or reflective surfaces that might adversely affect the measurement. Campbell Scientific recommends mounting the NR01 to a CM300-series mounting pole at least 25 feet away from other mounting structures. The NR01 is attached to the CM300-series mounting pole via a CM204 or CM206 crossarm.
相关技术文档
产品样册
常见问题解答
NR01-L: 12
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Shading and reflection are important aspects to consider. The sensor should have a clear view of the upward hemisphere of the sky. To avoid shading effects and to promote spatial averaging, the sensor should be mounted at least 1.5 m above the ground surface.
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As of June 2013, all of our current and retired net radiation sensors can be mounted using this kit. These include:
- Current sensors: CNR4-L, NR-LITE2-L, and NR01-L
- Retired sensors: CNR1, CNR1-L, CNR2-L, NR-LITE-L, and Q7.1-L
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Only one 4WPB100 is needed to measure the internal PRT in the radiometer.
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Mount the net radiometer so that no shadow will be cast on it at any time of day from obstructions such as trees, buildings, the mast, or the structure on which it is mounted.
Campbell Scientific recommends installing a net radiometer in an open area, away from the main weather station structure on a separate vertical mast. If it is necessary to install this sensor on the main tall tower (30 ft or taller), the sensor should be installed at the top of the tower. In the northern hemisphere, the sensor should be facing south. In the southern hemisphere, the sensor should be facing north. If the tower uses a solar power system (that is, solar panels), ensure that the solar panels are installed away from the main tower.
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Campbell Scientific recommends that the sensor be mounted to a separate vertical pipe at least 25 ft from any other mounting structures.
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It is possible that an older version of Short Cut is being used. Download the latest version of Short Cut.
For programming assistance, consult the NR01-L instruction manual. For additional assistance, contact Campbell Scientific.
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The CR1000 requires a 4WPB100 to measure the internal PRT. (Data loggers such as the CR3000 and CR5000 have the necessary PRT bridge module built in to measure the PRT.) Note that the CNR4-L also includes an internal thermistor, which can be directly measured by the CR1000. Because of this, when using a CR1000, Campbell Scientific typically recommends monitoring the internal temperature of the CNR4-L using its internal thermistor instead of the PRT.
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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：
- –LC 表示用户指定线缆长度，所配快速接头用于 ET107, CS110, 或已停产的 Metdata1 系统。
- –LQ 表示用户指定线缆长度，所配快速接头用于 用于 RAWS-P 气象站。
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。
- 以 –ET 结尾的型号的传感器配备快速接头，用于 ET107 气象站。
- 以 –ETM 结尾的型号的传感器配备快速接头，用于 ET107 气象站，但它们也含有一个特殊的系统安装支架，在订购一个备件时，所配的支架经常是便捷实用的。
- 以 –QD 结尾的型号的传感器配备快速接头，用于 RAWS-F 快速配置气象站。
- 以 –PW 结尾的型号的传感器配备快速接头，用于 PWENC 预接线机箱或预接线系统。
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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：
- 产品型号
- 线缆尾端选项列表
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。
案例研究
The Utah Geological Survey, supported by the Utah Division of Water Rights, has constructed a......阅读更多