2021-12-24 11:57:05 +08:00
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# 简介
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## LD19
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## 结构图
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## 电气与机械参数
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2021-12-24 15:54:22 +08:00
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|参数名称|单位|最小值 | 典型值 | 最大值 | 备注 |
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|:----|:----|:----|:----|:----|:----|
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|输入电压|V|4.5V | 5V | 5.5V | |
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|PWM 控制频率|KHz|20 | 30 | 50 | 方波信号 |
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|PWM 高电平|V|3.0 | 3.3 | 5.0 | |
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|PWM 低电平|V|-0.3 | 0 | 0.5 | |
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|PWM 占空比 |%| 0 | 40 | 100 | 40% 占空比扫描频率为 10Hz |
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|启动电流|mA|- | 300 | - | |
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|工作电流|mA|- | 180 | - | |
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|整机尺寸|mm| - | 54x46.29x34.8 (长宽高) | - | |
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|整机重量|g|- | 47 | - | 不含连接线 |
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|通讯接口|-|-| UART @ 230400 |- | |
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|UART 高电平|V|2.9 | 3.3 | 3.5 | |
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|UART 低电平|V|-0.3 | 0 | 0.4 | |
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|驱动电机|-|BLDC | - | - | 无刷电机 |
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|工作温度|℃|-10 | 25 | 40 | |
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|存储温度|℃|-30 | 25 | 70 | |
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2021-12-24 11:57:05 +08:00
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## 光学参数
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2021-12-24 15:54:22 +08:00
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|参数名称|单位 | 最小值 | 典型值 | 最大值 | 备注|
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|:----|:----|:----|:----|:----|:----|
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|激光波长|nm | 895 | 905 | 915 | 红外波段|
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2021-12-24 15:56:35 +08:00
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|激光功率|W | - | 25 | - | 激光二极管峰值功率</br>实际使用功率远低于此值|
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2021-12-24 15:54:22 +08:00
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|激光脉宽|ns | - | 1 | - | |
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|激光安全等级|- | - | IEC-60825 Class 1 | - | |
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|俯仰角|° | 0 | 0.5 | 2 | |
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2021-12-24 11:57:05 +08:00
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## 性能参数
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2021-12-24 15:54:22 +08:00
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|参数名称 |单位 | 最小值 | 典型值 | 最大值 | 备注|
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|:----|:----|:----|:----|:----|:----|
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|测距范围 | m | 0.02 | - | 12 | 70%目标反射率|
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|扫描频率 | Hz | 5 | 10 | 13 | 外部提供PWM 控速|
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|测距频率 | Hz | - | 4500 | - | 固定频率|
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2021-12-24 15:56:35 +08:00
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|测距精度 | mm | - | - | - | 测距小于0.3m时，有数据输出。</br>测距数据变化趋势与实际距离变化趋势一致|
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|测距精度 | m | -45 | - | 45 | 测距范围在300mm到12000mm时，测量100次的平均值(70%漫反射面)|
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|测距标准差 | mm | - | 10 | - | 测距范围在300mm到12000mm时|
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2021-12-24 15:54:22 +08:00
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|测量分辨率 | mm | - | 15 | - | |
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|角度误差 | ° | - | - | 2 | |
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|角度分辨率 | ° | - | 1 | - | |
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|抗环境光 | KLux | - | - | 30 | |
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|整机寿命 | h | 10000 | - | - | |
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