RPG-MWSC-160微波闪烁仪,它结合大孔径闪烁仪,构成光学——微波闪烁系统(Optical and Microwave Scintillometer Systems, OMS),可直接同步测量感热通量(H)和潜热通量(LE),该方法又称为双波长闪烁法,在实际应用过程中具有重要意义。
The RPG-MWSC-160 prototype was developed by RPG and Wageningen University
(The Netherlands) within the OMS (Optical and Microwave Scintillation) project. The RPG-MWSC-160 uses hardware developments from space projects.
High frequency (160.8 GHz) for good co-spectrum with LAS
Large aperture (300 mm) provides small beam width
Tunable power level (max. >25 mW) allows path length between 500 m and 10 km
Low weight (~10 kg) and power consumption (~20 W)
Retrieved data types:
Structure parameters Cn2 of the turbulent surface layer
Sensible and latent heat fluxes (in combination with an optical Large Aperture Scintillometer (LAS))
参 数 | 描 述 |
发射频率 | 160.8 GHz (λ=1.86 mm) |
辐射功率 | 最大功率: >25mW, 50dB 衰减器 |
天线类型 | 卡塞格伦天线, 300mm 孔径 |
天线增益 | 52dB |
波束宽度 | 0.45° FWHM |
探测带宽 | 10kHz |
增益稳定性 | > 2.0×10-5 |
温度稳定性 | < 0.03K (两级控制) |
供电电源 | 12VDC |
功耗 | 最大50W (每个单元), 20W 标准 (接收器),15 W 标准 (发射器) |
输出数据 | Level 0 1kHz数字化原始数据,内部数据 |
Level 1 双波长闪烁法协方差数据 | |
Level 2 结构参数Cn²,感热通量H和潜热通量LE( 含气象站) | |
安装类型 | 三角支架或铁塔 |
基线长度 | 500m~10Km,视线无遮挡 |
Parameter | Specification |
---|---|
Frequency | 160.8 GHz (λ=1.86 mm) |
Radiated Power | maximum power: >25 mW, 50 dB attenuator |
Antenna Type | Cassegrain with 300 mm aperture |
Antenna Gain | 52 dB |
Beam Width | 0.45° FWHM |
Detection Bandwidth | 10 kHz |
Gain Stability | > 2.0 × 10-5 |
Temperature Stability | < 0.03 K (two-stage control) |
Power Supply | 12 V DC |
Power Sonsumption | max. 50 W (per unit), 20 W typical (receiver), 15 W typical (transmitter) |
Output Data | Level 0: 1 kHz digital raw data for RPG-MWSC-160 and LAS; housekeeping data Level 1: (co)variances of the combined MWSC/LAS system Level 2: structure parameters; sensible and latent heat fluxes (with weather station) |
Type of installation | Line of sight Tx/Rx system (transmit/receive) |
Baseline Length | 500 m to 10 km |
组成 | 名称 | 型号 | 数量 |
系统主机 | 微波发射器 | RPG-MWSC-160TX | 1 |
微波接收器 | RPG-MWSC-160RX | 1 | |
气象要素传感器(必选) | WXT520 | 1 | |
GPS模块(可选) | GPS | 1 | |
BLS大孔径闪烁仪发射端 | Transmitter Unit | 1 | |
BLS大孔径闪烁仪接收端 | Receiver Unit | 1 | |
数据处理及存储单元(SPU) | Signal Processing Unit | ||
数据采集器 | RR-1016 | ||
传感器 | 空气温湿度 | AV-10TH | 2 |
风速 | AV-30WS | 2 | |
风向 | AV-30WD | 1 | |
气压 | AV-410BP | 1 | |
净辐射 | AV-71NR | 1 | |
土壤热通量 | AV-HFT3 | 2 | |
土壤温度(可选,5、10、15、20、40cm) | AV-10T | 5 | |
土壤湿度(可选,5、10、15、20、40cm) | AV-EC5 | 5 | |
附件 | 无线传输模块 | DTU3G | 1 |
无线传输模块(气象) | DTU900C | 1 | |
太阳能供电系统(128W太阳能板、100AH电池、电池防护箱、控制器及安装附件) | SP128WR | 8 | |
太阳能供电系统(20W太阳能板、12AH电池、控制器及安装附件)(气象) | SP20WR | 1 | |
防护机箱(安装SPU) | ENC30 | 1 | |
防护机箱(安装数据采集器)(气象) | ENC10 | 1 | |
安装支架(用于闪烁仪的发射和接收)(气象) | Tripod | 2 | |
安装支架(三角支架,2米主杆组成(两节),带3个地钉或膨胀钉) | TP3 | 1 | |
软件包(数据采集软件、无线传输下载软件等)(气象) | RR-DATA | 1 |
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