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    • 61. 发明专利
    • DATA TRANSMISSION SYSTEM
    • JPH01280994A
    • 1989-11-13
    • JP16483488
    • 1988-07-01
    • ELECTRICITE TO FUOOLE GUUDEREN
    • REO BUAN DE PASU
    • G08C19/00G01D5/24G01F23/44G01F23/46G01F23/60G01F23/62H04Q9/00
    • PURPOSE: To eliminate mechanical or galvanic and electric contact by call- originating measurement data collected by means of a measuring instrument, providing a sensor through a conductive element and enabling storing and processing measurement data. CONSTITUTION: A measurement data transmitting device consists of a main electric circuit and a secondary electric circuit. The main electric circuit is composed of an autonomous measuring instrument 3 which works as a signal source, an electric conductor element (a metallic rod, etc.) 4 which is connected to the measuring instrument 3, so as to freely move and an electric conductor 5 which includes the rod 4, the measuring instrument 3, a range capacitance 6, a rod 7 and a conductor 8. The secondary electric circuit is formed by a signal-receiving unit 9 (in which the electric conductor element 4 freely moves) such as a magnetic annular core 10 which is provided with an annular coil 11 and a signal processing unit 12 which is connected to the signal receiving device 9 by the annular coil 11. Thus, mechanical and galvanic electric contact are eliminated.
    • 63. 发明专利
    • FLOW RATE MEASURING INSTRUMENT
    • JPS62124420A
    • 1987-06-05
    • JP26534085
    • 1985-11-25
    • TOKYO TATSUNO KK
    • OOTA YASUHITOSUGIZAKI SHIGERU
    • G01F23/44
    • PURPOSE:To measure a flow rate accurately without reference to variation in resistance characteristics of a potentiometer by obtaining a measurement signal based upon the ratio of the overall resistance value of the potentiometer and a resistance value based upon a liquid level. CONSTITUTION:When the liquid level in a tank fluctuates, the brush 1b of the potentiometer is driven to rotate in response to the fluctuations. Then, a constant current is supplied from a constant current source 6 to the potentiom eter 1 through a switching circuit 4. The terminal voltage developed across a resistor 1a with the constant current, i.e. total voltage Vs is measured by the 1st voltage measuring means 7. The voltage between the resistor 1a and brush 1b, i.e. voltage Vx corresponding to the liquid level is measured by the 2nd voltage measuring means 8. Then, those voltages Vs and Vx are supplied to a rate arithmetic circuit 9 to calculate the ratio of the both, which is converted into a signal indicating the liquid level. Consequently, the amount of liquid is measured accurately without reference to variation in resistance characteristics of the potentiometer.
    • 64. 发明专利
    • Level gauge capable of measuring specific gravity and boundary surface remotely
    • 测量特定重力和边界表面的水平仪
    • JPS6145925A
    • 1986-03-06
    • JP16760584
    • 1984-08-10
    • Sakura Sokki Kk
    • TAKAHASHI ISAO
    • G01N9/18G01F23/44G01N9/12
    • G01F23/44
    • PURPOSE:To switch and control a boundary surface measuring and a specific gravity measuring function through remote operation by supplying a specific signal to one input of a comparing circuit which is supplied at the other input with the output of a tension detector coupled with a measurement wire elevating mechanism, and controlling the measurement wire elevating mechanism with the output of the comparing circuit. CONSTITUTION:A measurement wire 2 with which is a displacer 1 is suspended is wound around the measurement wire elevating mechanism 4 coupled with a tension detector 3, whose output is supplied to one input of the comparing circuit 9 through an A/D converter 8 to output one of a liquid level measurement, a specific gravity measurement, and a boundary surface measurement mode to an arithmetic circuit 10 through a two-way transmission part 17. Then, each set value of the specified mode is calculated by the circuit 10 and supplied to the other input terminal of the circuit 9, whose output is used to control the mechanism 4 through a motor 16. Consequently, a microprocessor unit 13 consisting of the circuits 9 and 10 and a memory are installed separately from a control room 18.
    • 目的:通过远程操作来切换和控制边界表面测量和比重测量功能,通过向另一个输入端提供的比较电路的一个输入端提供一个特定的信号,并与测量线连接的张力检测器的输出 升降机构,并用比较电路的输出控制测量线升降机构。 构成:将与放电器1悬挂的测量线2缠绕在与张力检测器3连接的测量线升降机构4上,张力检测器3的输出通过A / D转换器8提供给比较电路9的一个输入, 通过双向传输部分17将运算电路10输出液面测量,比重测量和边界面测量模式之一。然后,由电路10计算指定模式的每个设定值,并提供 到电路9的另一个输入端,其输出用于通过马达16来控制机构4.因此,由电路9和10组成的微处理器单元13和存储器与控制室18分离地安装。
    • 69. 发明专利
    • Water level following-up device of cylinder gate
    • 水平井下水装置
    • JPS59126918A
    • 1984-07-21
    • JP174183
    • 1983-01-11
    • Ube Ind Ltd
    • MITSUYOSHI YOSHIKATSUSUZUKI MASANORI
    • G01F23/44E02B7/32G05D9/12
    • G05D9/12
    • PURPOSE:To simplify the structure, by moving vertically a cylinder gate so that the difference of rotation angle between an opening degree meter drum connected to the edge of a water intake of the cylinder gate and a drum for a float connected to a float is always constant. CONSTITUTION:The lower end of a wire 8a led from an opening degree meter drum 8 is connected to a water intake edge 1a of a cylinder gate 1, and the lower end of a wire 14a led from a drum 14 for a float is connected to a float 2. The difference between the rotation angle of the drum 14 for a float and that of an opening degree meter drum 8 is detected by a detecting means such as a differential selsyn oscillator or the like, and a winch 6 is so operated that a value H is always constant, thereby holding always the height of water intake in the certain quantity H.
    • 目的:为了简化结构,通过垂直移动气缸门,使得连接到气缸门的进水口的开口度计鼓与连接到浮子的浮子的滚筒之间的旋转角度的差异总是 不变。 构成:从开度计滚筒8引出的导线8a的下端连接到气缸门1的进水边缘1a,并且从用于浮子的滚筒14引出的导线14a的下端连接到 浮子滚筒14的旋转角度与开度计滚筒8的旋转角度之间的差异由诸如差分塞尔辛振荡器等的检测装置检测,并且绞盘6被操作,使得 值H总是恒定的,从而始终保持一定量的进水量的高度。
    • 70. 发明专利
    • Digital converter device for rotary angle
    • 旋转角数字转换器
    • JPS59102112A
    • 1984-06-13
    • JP21286982
    • 1982-12-03
    • Tokyo Keiso Kk
    • KOIKE TATSUROU
    • G01D5/36G01B11/26G01F23/30G01F23/44
    • G01F23/446
    • PURPOSE:To improve explosion proof property in a dangerous region, by connecting a symbol plate and photoelectric conversion elements by optical fibers in a liquid level meter and the like. CONSTITUTION:A symbol plate 6 is attached to a central shaft 7, which is coaxially rotated with a rotary output shaft 5 of a liquid level meter 4. A pattern, wherein mirror surface parts 8 and light absorbing parts 9 are radially provided at an equal interval, is provided on the surface of the sign plate 6. Light beams are projected on the surface of the sign plate from a pair of optical fibers 10 and 11. The reflected light beams from the mirror surface parts 8 are transmitted to photoelectric conversion elements 16a and 16b from the other ends of the optical fibers. Prisms 12 and 13 are attached to the other ends of the optical fibers 10 and 11 in this case. Emitted light beams from light sources 14 and 15 are introduced. The positions of the light projecting ends of the fibers are shifted by the half width of the pattern of the mirror surface part 8 or the light absorbing part 9.
    • 目的:通过液位计等中的光纤连接符号板和光电转换元件,提高危险区域的防爆性能。 构成:符号板6安装在与液位计4的旋转输出轴5同轴旋转的中心轴7上。其中镜面部分8和光吸收部分9径向设置在相等的位置上的图案 间隔设置在标志板6的表面上。光束从一对光纤10和11投射在符号板的表面上。来自镜面部分8的反射光束被传输到光电转换元件 16a和16b从光纤的另一端。 在这种情况下,棱镜12和13附接到光纤10和11的另一端。 引入来自光源14和15的发射光束。 纤维的光投射端的位置偏移了镜面部8或光吸收部9的图案的半宽。