Transversal distribution of a spray drone applying different nozzles and measuring methods

Abreviations:

One single measurement (flight of the drone on patternator, Water Sensitive paper or filter paper have been indicated as follows:

Example “XR-1-P”:  Nozzle – Repetition -  Measuring Method

Nozzle: 3 types of nozzles have been used XR, TXA, IDK

Repetition: 1-3

Measuring method: patternator – water sensitive paper – filter paper

So XR-1-P is the measurement with the XR nozzle, first repetition on patternator

 Distance cm: The distance indicates the length of the patternator, the water sensitive paper and the filter paper which ware all 600 cm. The single measuring length of the different methods were different. Patternator had 10 cm wide grooves, filter paper strips were 25 cm long and water sensitive paper strips were 20 cm long.

 Measuring methods

Patternator used with 10 cm measuring width per cylinder. Milliliters “ml” of liquid per cylinder are measured.

Water Sensitive Paper: Coverage 1 = 100 % has been measured using image anlysis, 20 cm strips have been analysed

Filter: Deposits on filter paper have been measured, recovery of the product (product/m2) is indicated in percents.

Standardisation of data to 20 cm units

Patternator: To standardise the original measuring length of 10 cm to 20 cm two measuring grooves of 10 cm just have been added.

 Water sensitive paper: the original values of the 20 cm strips have been used

Filter paper: New values (20 cm length) are calculated out of old values (25 cm length) attributing them the linear weight of the different length of the included measurements

Value for 20 cm = value of original 25 cm value (FP25)

Value for 40 cm = (FP25 * 5/20+FP50*15/20) (“5 cm of FP25 and 15 cm of FP50” are taken)

Value for 60 cm =(FP50*10/20+FP75*10/20) (“10 cm of FP50 and 10 cm of FP75” are taken)

Value for 80 cm =(FP75*15/20+FP100*5/20) (“15 cm of FP75 and 5 cm of FP100” are taken)

Value for 100 cm = FP100

and so on

Data standardised, Max. = 100 %

The maximum of each measurement was linearly standardised to 100 % to be able to compare the relative distributions of the different measurements.

Shift of the curves: The curves were manually adjusted to have the maximum at 300 cm.

### 缩写说明
本次实验中单次测量（无人机沿测试路径飞行，使用喷雾图案测试装置（patternator）、水敏试纸（Water Sensitive Paper）或滤纸（filter paper））的命名规则如下：
示例"XR-1-P"：喷嘴类型-重复次数-测量方法
其中：
- 喷嘴类型：共使用3种喷嘴，分别为XR、TXA、IDK
- 重复次数：1至3次
- 测量方法：patternator（喷雾图案测试装置）、水敏试纸、滤纸
因此"XR-1-P"代表采用XR型喷嘴、第1次重复、使用喷雾图案测试装置的测量。

### 测量距离参数
本次实验中，喷雾图案测试装置、水敏试纸与滤纸的总布置长度均为600 cm，但不同测量方法的单段采样长度存在差异：喷雾图案测试装置的采样槽宽度为10 cm，滤纸条长度为25 cm，水敏试纸条长度为20 cm。

### 各测量方法说明
1. **喷雾图案测试装置**：以每个采样槽为单位，测量每槽对应的液体体积，单位为毫升（ml）。
2. **水敏试纸**：采用图像分析法测量覆盖度，以100%为完全覆盖标准，本次分析采用长度为20 cm的试纸条。
3. **滤纸法**：测量滤纸表面的药剂沉积量，以单位面积药剂回收率（药剂/平方米）的百分比形式表示。

### 数据标准化为20 cm单位
为统一各测量方法的采样尺度，将原始数据统一转换为20 cm长度单位，具体规则如下：
1. **喷雾图案测试装置**：原始采样槽长度为10 cm，需将两段相邻10 cm的采样槽合并为20 cm单位进行标准化。
2. **水敏试纸**：直接采用原始20 cm试纸条的测量值。
3. **滤纸法**：需将原始25 cm长度的试纸条数据转换为20 cm单位：
设原始25 cm长度滤纸的测量值为FP25，则转换规则如下：
- 20 cm单位值 = 原始25 cm测量值（FP25）
- 40 cm单位值 = (FP25×5/20 + FP50×15/20)，即取5 cm的FP25与15 cm的FP50进行加权计算
- 60 cm单位值 = (FP50×10/20 + FP75×10/20)，即取10 cm的FP50与10 cm的FP75进行加权计算
- 80 cm单位值 = (FP75×15/20 + FP100×5/20)，即取15 cm的FP75与5 cm的FP100进行加权计算
- 100 cm单位值 = FP100
以此类推。

### 最大值归一化处理
所有标准化数据均进行最大值线性缩放至100%，以实现不同测量结果的相对分布对比。

### 曲线偏移调整
为统一对比基准，所有曲线均通过手动调整，将峰值位置统一至300 cm处。