随着全球变暖现象加剧,面朝大海,春暖花开的场景,变得越来越奢侈了。
Many coastal communities in the US experience nuisance flooding, or high-tide flooding, on a regular basis. Higher sea levels, caused by warmer water temperatures and melting glaciers and ice sheets, increase the hazards coastal residents are exposed to.
The National Oceanic and Atmospheric Administration reported in 2019 that by 2050, the United States will experience 25 to 75 days of high-tide flooding.
Additionally, hurricane storm surge is creeping higher, and homes and other critical infrastructure are now exposed to saltwater and erosion that they weren’t a few decades ago.
Many coastal communities in the US experience nuisance flooding, or high-tide flooding, on a regular basis. Higher sea levels, caused by warmer water temperatures and melting glaciers and ice sheets, increase the hazards coastal residents are exposed to.
The National Oceanic and Atmospheric Administration reported in 2019 that by 2050, the United States will experience 25 to 75 days of high-tide flooding.
Additionally, hurricane storm surge is creeping higher, and homes and other critical infrastructure are now exposed to saltwater and erosion that they weren’t a few decades ago.
风里掺杂着自然的气息,脚步迫不及待前去探索!前方跑者动态更新,即刻探索https://t.cn/A6oBwesw 教你一秒穿出户外运动氛围感LOOK,为风格加点随性格调。
LOOK 1:自在如风
✅Surge Warm 男士运动半拉链衫:半拉链设计平衡保暖与透气,呼应户外温度变化;减少异味设计,令运动旅途时刻清新。
✅Fast and Free 男士运动帽:舒爽有型,造型感直线飙升;经典配色,点染秋冬氛围。
LOOK 2:动能迸发
✅Fast and Free 男士运动短袖T恤:保持清爽,肌肤透气呼吸;反光加持,夜间安全护航。
✅Fast and Free 6" 男士运动短裤*内衬款:网面内衬,令运动舒适专注;柔软Nulux™面料,延续顺滑体感。
LOOK 1:自在如风
✅Surge Warm 男士运动半拉链衫:半拉链设计平衡保暖与透气,呼应户外温度变化;减少异味设计,令运动旅途时刻清新。
✅Fast and Free 男士运动帽:舒爽有型,造型感直线飙升;经典配色,点染秋冬氛围。
LOOK 2:动能迸发
✅Fast and Free 男士运动短袖T恤:保持清爽,肌肤透气呼吸;反光加持,夜间安全护航。
✅Fast and Free 6" 男士运动短裤*内衬款:网面内衬,令运动舒适专注;柔软Nulux™面料,延续顺滑体感。
EMC测试介绍
EMC测试又叫做电磁兼容(EMC),指的是对电子产品在电磁场方面干扰大小(EMI)和抗干扰能力(EMS)的综合评定,是产品质量重要的指标之一,电磁兼容的测量由测试场地和测试仪器组成。
EMC测试项目:
电磁兼容测试项目
传导conduction emission (9kHz-30MHz)
功率辐射power clamp (30MHz-300MHz)
磁场辐射magnetic emission(9kHz-30MHz)
空间辐射radiated emission(30MHz-18GHz)
断续传导干扰click
谐波harmonics class a,b ,c,d
电压闪烁flicker plt .pst
静电ESD (±0.1-±16.5kV)
辐射抗扰度(1GHz以下)
辐射抗扰度(1GHz以上)
快速脉冲群EFT/B (±0.1-±4.4kV)
浪涌surge (0.1-6.6kV)
传导抗扰度CS(0.1-30V)
抗磁场干扰MS(0-120A/m)
断电Dips(0%-)
振荡波浪涌 Oscillatory Waves Surge 0.1-6.6kV 波形100kHz
谐波、谐间波抗干扰 Harmonic、interharmonic immunity
磁场EFM 10Hz-400kHz (EN50366)
EMC测试步骤:
1、指定试验大纲和测试细则
2、确定所依据的标准
3、交换试验接口信息
4、检查测量仪器
5、开始分项测试
6、出具测试报告
EMC测试又叫做电磁兼容(EMC),指的是对电子产品在电磁场方面干扰大小(EMI)和抗干扰能力(EMS)的综合评定,是产品质量重要的指标之一,电磁兼容的测量由测试场地和测试仪器组成。
EMC测试项目:
电磁兼容测试项目
传导conduction emission (9kHz-30MHz)
功率辐射power clamp (30MHz-300MHz)
磁场辐射magnetic emission(9kHz-30MHz)
空间辐射radiated emission(30MHz-18GHz)
断续传导干扰click
谐波harmonics class a,b ,c,d
电压闪烁flicker plt .pst
静电ESD (±0.1-±16.5kV)
辐射抗扰度(1GHz以下)
辐射抗扰度(1GHz以上)
快速脉冲群EFT/B (±0.1-±4.4kV)
浪涌surge (0.1-6.6kV)
传导抗扰度CS(0.1-30V)
抗磁场干扰MS(0-120A/m)
断电Dips(0%-)
振荡波浪涌 Oscillatory Waves Surge 0.1-6.6kV 波形100kHz
谐波、谐间波抗干扰 Harmonic、interharmonic immunity
磁场EFM 10Hz-400kHz (EN50366)
EMC测试步骤:
1、指定试验大纲和测试细则
2、确定所依据的标准
3、交换试验接口信息
4、检查测量仪器
5、开始分项测试
6、出具测试报告
✋热门推荐