| 超声波式预警器的研制 |
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| 引用本文： | 柳桂国,蒋奋翘. 超声波式预警器的研制[J]. 传感器与微系统, 2004, 23(12): 33-34,37 |
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| 作者姓名： | 柳桂国 蒋奋翘 |
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| 作者单位： | 浙江工商职业技术学院,应用电子系,浙江,宁波,315012 |
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| 摘 要： | 在超声波预警器的研制中,选用双角度超声波传感器并在其前端加套筒。传感器阵列的激励采用循环扫描调制触发信号,其接收信号经过AGC放大、鉴频等处理,在-75°～75°视角、1.5～10.5m空间范围内,这种预警器对人体闯入能够进行准确、可靠报警。
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| 关 键 词： | 超声波式预警器 双角度超声波传感器 循环扫描调制触发 超声波测距 |
| 文章编号： | 1000-9787(2004)12-0033-02 |
Development of ultrasonic alarm |
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| LIU Gui-guo,JIANG Fen-qiao. Development of ultrasonic alarm[J]. Transducer and Microsystem Technology, 2004, 23(12): 33-34,37 |
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| Authors: | LIU Gui-guo JIANG Fen-qiao |
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| Abstract: | In the process of designing alarm,dual-angle ultrasonic sensors are selected and every tube is put at forward place in every sensor.Every sensor is triggered by a series of circulated-and-modulated signals from single chip processor and the output signal from every sensor is amplified by AGC.With the technology of inspecting frequency,the alarm can reliably detects somebody who breaks into cordon from the large forward space of 1.5～10.5 m at angle-75 °～75 °. |
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| Keywords: | ultrasonic alarm dual-angle ultrasonic sensor circulated-and-modulated trigger distance measurement with ultrasonic |
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