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1. 发明专利

JPS5761971A Ultrasonic substance detector 失效
标题翻译：超声波物体检测器
公开(公告)号：JPS5761971A
公开(公告)日：1982-04-14
申请号：JP13583280
申请日：1980-10-01
申请人： Tdk Corp
发明人： FUJITA KATSUO , MITSUI SETSUO , FUKAZAWA TAKESUKE
IPC分类号： G01S7/526 , G01S13/52 , G01S13/538 , G01S15/04 , G01S15/50 , G01S15/52
CPC分类号： G01S15/52
摘要： PURPOSE:To greatly release the limitation of a reflecting substance at a installing place, by storing the contents of a reflected wave in the steady state into a detector and constantly comparing between the reflected wave and storage contents to recognize the entry of a substance to be detected. CONSTITUTION:A reference pattern of the steady state is stored in a shift register 17 when a prescribed priod of time elapses after the application of a power source, and the detection is possible for a substance. If a shifting abnormal reflected substance enters an ultrasonic wave radiating region, the output of an FF15 which functions as a temporary storage circuit for received signals becomes different from the contents of the reference patterns within a register 17. Then an FF24 is set if no coincidence is obtained through a comparator 18 between the above-mentioned output and contents. With the prescribed times of arrival of such transmission/reception cycle, a terminal Q2 of a universal shift register 25 is roduced to H to actuate a light emitting diode 29, etc. in a detection display output circuit 27. Thus the detection of an abnormal reflecting substance is displayed. In such way, no obstacle exists as long as the substance to be detected is a stationary body such as a column, etc. exists within the ultrasonic wave radiating region. Thus the degree of freedom is increased for the installating place.
摘要翻译：目的：通过将反射波在稳定状态下的内容物保存在检测器中，大大减少安装场所反射物质的限制，不断比较反射波和储存内容物，以识别物质的进入检测到。构成：当在施加电源之后经过规定的时间段时，稳定状态的参考模式被存储在移位寄存器17中，并且可以对物质进行检测。如果移动的异常反射物质进入超声波辐射区域，则用作接收信号的临时存储电路的FF15的输出与寄存器17内的参考图形的内容不同。然后如果不一致则设置FF24 通过上述输出和内容之间的比较器18获得。在这种发送/接收周期的规定时间到达时，通用移位寄存器25的端子Q2被导向H以在检测显示输出电路27中致动发光二极管29等。因此，检测异常反映物质被显示。这样，只要被检测物质为柱等固定体等存在于超声波辐射区域内，则不存在障碍物。因此，安装地点的自由度会增加。

2. 发明专利

JPS599574A Ultrasonic object detecting apparatus 失效
标题翻译：超声对象检测装置
公开(公告)号：JPS599574A
公开(公告)日：1984-01-18
申请号：JP11795882
申请日：1982-07-07
申请人： Tdk Corp
发明人： MITSUI SETSUO
IPC分类号： G01S15/04
CPC分类号： G01S15/04
摘要： PURPOSE:To enhance directional characteristics without increasing a diameter/ wavelength ratio, by a method wherein an emitting direction is changed stepwise and the sizes of reflected angles in a same time zone at every step angle are compared to determine the direction or the distance of an object. CONSTITUTION:At first, ultrasonic waves are emitted by directional beam 1 in the direction of an angle theta0 and output signals a0, b0 of a sound wave receiving amplifier to be stored. At second, ultrasonic waves are emitted by directional beam 2 in the direction of an angle theta1 are emitted. At this time, the reflected signal a1 of an object A comes to 1/2 with respect to the direction theta0 while the signal b1 of an object B is doubled and both signals are stored. At third, ultrasonic waves are emitted by directional beam 3 in the direction of an angle theta-1 to obtain amplifier outputs a-1, b-1 which are, in turn, stored. When the stored signal levels of a same time zone are compared on the basis of the direction theta0 and, only in such a case that the signal in the direction theta0 is largest in the same time zone, it is outputted as an object signal, error measurement is eliminated because a0 remains and b0 is removed.
摘要翻译：目的：为了增强方向特性而不增加直径/波长比，通过比较发射方向逐步改变并且在每个步进角度的相同时间区域中的反射角度的大小被比较以确定方向或距离目的。构成：首先，定向波束1以角度θ0的方向发射超声波，并输出声波接收放大器的输出信号a0，b0。第二，定向波束2在角度θ1的方向上发射超声波。此时，对象A的反射信号a1相对于方向θ0变为1/2，而对象B的信号b1被加倍并且两个信号被存储。第三，通过定向波束3沿角度θ-1的方向发射超声波，以获得进而存储的放大器输出a-1，b-1。当根据方向θ0比较相同时区的存储信号电平时，仅在相同时间区域中θ0方向的信号最大的情况下，作为对象信号输出错误消除测量，因为a0保留，b0被去除。

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