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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 3. Отображено 3.
21-04-2023 дата публикации

Tunnel wind speed detection method and system based on TOF and computer equipment

Номер: CN115993466A
Автор: XI YUXUAN, JIANG ZE, GU RENYONG, LIU PENG, GAO WENPING, HAO YEJUN, WANG LU, JI YAQIANG, WU WENHUI, WU HAORAN
Принадлежит:

The invention relates to the technical field of mine ventilation detection, in particular to a TOF (Time of Flight)-based roadway wind speed detection method, which comprises the following steps: S1, an ultrasonic anemograph is mounted on a rock wall in a roadway, the ultrasonic anemograph comprises four ultrasonic transducers, and in the four ultrasonic transducers, two pairs of ultrasonic transducers forming an angle of 180 degrees are positioned on the same horizontal plane, and the two pairs of ultrasonic transducers are positioned on the same horizontal plane; the vertical distances between the two pairs of ultrasonic transducers and the ground are equal; s2, respectively calculating the down-wind and up-wind time of each pair of ultrasonic transducers through a dual cross-correlation filtering method; and S3, calculating the wind speed component of the roadway based on an ultrasonic time difference method. According to the TOF-based roadway wind speed detection method provided by ...

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Номер записи: 1
14-04-2023 дата публикации

Laser pulse number regulation and control system, method and control terminal

Номер: CN115966985A
Автор: GUO LIANG, JI YAQIANG, LI HAIHUI
Принадлежит:

The invention is suitable for the technical field of laser control, and provides a laser pulse number regulation and control system and method and a control terminal.The system comprises the steps that when it is determined that a signal generation mode carried by a received mode selection command is a first generation mode, a control module obtains preset pulse parameters, the femtosecond laser is controlled to send a corresponding first synchronizing signal, the digital delay generation module generates a corresponding first square wave signal when being triggered by the first synchronizing signal, and the data acquisition module generates a first preset signal and sends the first preset signal to the femtosecond laser when detecting that the first square wave signal contains a rising edge signal every time; the femtosecond laser is controlled to correspondingly send a laser pulse signal; and the control module marks the number of the first signals plus one, converts the first preset ...

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Номер записи: 2
18-07-2023 дата публикации

Mining sensor shell and processing method

Номер: CN116448154A
Автор: GU QIAOMING, GU RENYONG, JIANG ZE, HAO YEJUN, WANG LU, WU FUSHENG, GAO WENPING, JI YAQIANG, JIANG ZHENNAN, WU XUESONG, GUAN WANLI, YANG YEQIANG, XI YUXUAN, CHENG YIFENG, WU HAORAN, WU WENHUI
Принадлежит:

The invention discloses a mining sensor shell which comprises the components of a main shell which is internally provided with an accommodating cavity with a side opening; the main back plate is connected with the side opening in the main shell so as to open or close the accommodating cavity; the main shell and the main back plate are both of a double-layer structure, and each double-layer structure comprises an external metal layer and an internal plastic layer. The sensor is simple in structure, the main shell and the main back plate are designed to be of a double-layer structure, the surface strength is improved through the external metal layer, and therefore the sensor is effectively protected, meanwhile, the metal layer can conduct electromagnetic shielding protection, and internal elements are prevented from being subjected to electromagnetic interference; the internal plastic layer has the advantages of being firm in combination with the metal layer, good in sealing performance, ...

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Номер записи: 3