We propose a spatial diffraction diagnostic method via inserting a millimeter-gap double slit into the collimated terahertz beam to monitor the minute variation of the terahertz beam in strong-field terahertz sources, which is difficult to be resolved in conventional terahertz imaging systems. To verify the method, we intentionally fabricate tiny variations of the terahertz beam through tuning the iris for the infrared pumping beam before the tilted-pulse-front pumping setups. The phenomena can
2021-03-01 17:05:57
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基于ProtoCentral AF4490的Arduino脉搏血氧仪防护罩
如果您正在寻找Arduino库，则现在将其移至此处： :
ProtoCentral的这种脉搏血氧饱和度防护罩使用AFE4490 IC使Arduino能够测量心律以及SpO2值。 脉搏血氧饱和度是一种间接的方法来测量血液中的氧气含量。 该传感器测量皮肤在红色和红外光波长下的吸光度，以计算氧气含量。 该测量是通过一个探针进行的，该探针夹在手指上，并包含发射器和光传感器。 由于流过任何血管的血液量随心脏的血流速率而变化（脉动），因此也可以用于测量心率，而无需连接任何ECG电极。 与Brainbay一起使用时，
2021-02-27 11:46:39
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A novel tiled Ti:sapphire (Ti:S) amplifier was experimentally demonstrated with >1 J amplified chirped pulse output. Two Ti:S crystals having dimensions of 14 mm× 14 mm× 25 mm were tiled as the gain medium in a four-pass amplifier. Maximum output energy of 1.18 J was obtained with 2.75 J pump energy. The energy conversion efficiency of the tiled Ti:S amplifier was comparable with a single Ti:S amplifier. The laser pulse having the maximum peak power of 28 TW was obtained after the compressor. Mo
2021-02-21 19:09:40
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Stimulus Pulse-Based Distributed Control for the Locomotion of a UBot Modular Robot
2021-02-11 09:07:00
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High peak power sub-nanosecond mode-locked pulse characteristics of Nd:GGG laser
2021-02-10 12:03:53
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