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公开(公告)号：US4632199A
公开(公告)日：1986-12-30
申请号：US721439
申请日：1985-04-09
申请人： Jurgen Ober , Franz-Josef Melcher , Erich Knothe
发明人： Jurgen Ober , Franz-Josef Melcher , Erich Knothe
摘要： In an electronic balance for application in potentially explosive areas, the weighing system, the electronic evaluation unit and the digital display unit have an intrinsically safe design with regard to the possibility of explosions. All lead connections are supplied with low voltages and the power unit when present is located outside the electronic balance and connected to the electronic balance via an explosion-safe lead and plug connections with an intrinsically safe design with regard to an explosion. In an alternative the power unit can be encapsulated in a pressure-proof manner, powder-filled, force-ventilated or located outside the potentially combustible gaseous explosive area. It is also contemplated that a battery which is intrinsically safe with regard to explosions can also be used in the housing of the electronic balance instead of a separate power unit.
摘要翻译： 在用于潜在爆炸区域的电子天平中，称重系统，电子评估单元和数字显示单元在爆炸的可能性方面具有本质安全的设计。 所有引线连接都提供低电压，并且当存在时的电源单元位于电子天平外部，并通过爆炸安全设计的爆炸安全的铅和插头连接连接到电子天平。 在替代方案中，动力单元可以以耐压的方式封装，粉末填充，强制通风或位于潜在可燃气体爆炸区域外部。 还可以设想，关于爆炸本身安全的电池也可以用于电子天平的壳体而不是单独的动力单元。
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公开(公告)号：US4619337A
公开(公告)日：1986-10-28
申请号：US716082
申请日：1985-03-26
申请人： Lothar Behrend , Jurgen Ober , Erich Knothe , Franz-Josef Melcher
发明人： Lothar Behrend , Jurgen Ober , Erich Knothe , Franz-Josef Melcher
摘要： In order to reduce the coupling-in of high-frequency electromagnetic interference into the measuring system of electric balances with scale on top and with a metallic balance scale and a metallic housing, a pin (7) which establishes the connection between the balance scale (2) and the load receiver (5) of the measuring system comprises an insulating layer on its surface which is bridged by a resistor (6) located on the pin (7).
摘要翻译： 为了将高频电磁干扰的耦合减小到电平衡的测量系统中，其具有在顶部和金属平衡秤和金属外壳上的刻度，销钉（7）建立平衡秤（ 2）和测量系统的负载接收器（5）包括在其表面上由位于引脚（7）上的电阻器（6）桥接的绝缘层。
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公开(公告)号：US4472660A
公开(公告)日：1984-09-18
申请号：US368857
申请日：1982-04-15
CPC分类号： G09G3/06
摘要： In conventional fluorescent signaling devices the filament is fed with 50 Hz alternating current and the multiplex frequency of the signal ranges similarly in the area of 50 Hz, so that brightness variations occur with the difference in frequencies. A simple means for avoiding disturbing effect is the circuit of the present invention which divides the heating alternating current voltage into several stages and connects the negative terminal of the supply voltage of the fluorescent signaling device to one of the intermediate stages of the heating alternating current voltage depending on the signaling point that at the instant concerned happens to be lighted.
摘要翻译： 在常规的荧光信号装置中，灯丝以50Hz的交流电馈送，并且信号的多路复用频率在50Hz的范围内类似地变化，使得随着频率的差异而发生亮度变化。 用于避免干扰效应的简单方法是本发明的电路，其将加热交流电压分成若干级，并将荧光信号装置的电源电压的负端连接到加热交流电压的中间级之一 取决于信号点，即在有关瞬间恰好被点亮。
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14.发明授权
公开(公告)号：US4382480A
公开(公告)日：1983-05-10
申请号：US283035
申请日：1981-07-13
CPC分类号： G01G7/04 , G01G21/244
摘要： A weighing machine employing electromagnetic forces having a weighing pan which is mounted at the top portion thereof. An electromagnetic coil is employed in an air gap of a stationary permanent magnet system for generating a compensating force. The coil has a rectangular shape while the permanent magnet system consists of rectangular plates of magnetically active material with the vertical direction of magnetism being above or below the longer sides of the coil. A horizontal compensating force results.
摘要翻译： 一种称重机，其采用具有安装在其顶部的称重盘的电磁力。 在用于产生补偿力的固定永磁体系统的气隙中采用电磁线圈。 线圈具有矩形形状，而永久磁铁系统由磁性活性材料的矩形板组成，其垂直方向的磁性高于或低于线圈的长边。 产生水平补偿力。
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公开(公告)号：US4884645A
公开(公告)日：1989-12-05
申请号：US323892
申请日：1989-03-15
申请人： Erich Knothe , Franz-Josef Melcher
发明人： Erich Knothe , Franz-Josef Melcher
摘要： In an electric precision balance with scale on top, protected against the penetration of foreign bodies and with a low-displacement measuring system (1), a parallel-guided balance scale carrier (3) for a balance scale (11) which is guided without contact through a housing opening (4) of a surrounding system housing (2) or protective cap, the balance scale carrier (3) is designed for its part with its part running upward outside of the system housing (2) as a protective hood (8) which covers the system housing (2) at least at the top and the sides and which comprises receiving bearings (9) at the low edge (8') for intermediary members (10) which support the balance scale (11), said intermediary members are surrounded without contact by casings (12) which form foreign-body baffles open at the top and the bottom which are a component of a general housing (7) surrounding the system housing (2) and said general housing comprises drainage openings (17,17') located in its low bottom parts.
摘要翻译： 在具有顶部的刻度的电精密平衡中，防止异物的穿透和低位移测量系统（1），用于平衡秤（11）的平行导向平衡秤（3），其被引导而不 通过周围的系统外壳（2）或保护盖的外壳开口（4）接触，平衡秤托架（3）被设计为其部分，其部分在系统壳体（2）的外侧向上延伸，作为保护罩 8），其至少在顶部和侧面覆盖系统壳体（2），并且包括在用于支撑平衡秤（11）的中间构件（10）的低边缘（8'）处接收轴承（9），所述中间构件 中间构件被包围而不与壳体（12）接触，壳体（12）形成在顶部和底部敞开的异物挡板，该外部挡板是围绕系统壳体（2）的一般壳体（7）的部件，并且所述一般壳体包括排水开口 17,17'）位于其低底部。
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16.发明授权Method for storing data in an electrically erasable memory for carrying out this method 失效用于将数据存储在用于执行该方法的电可擦除存储器中的方法
公开(公告)号：US4811293A
公开(公告)日：1989-03-07
申请号：US852726
申请日：1986-04-15
申请人： Erich Knothe , Franz-Josef Melcher
发明人： Erich Knothe , Franz-Josef Melcher
摘要： Method and apparatus of storing data in an electrically erasable memory connected to a microprocessor to effectively protect data stored in the memory from being unintentionally overwritten in cases of defective operation of the microprocessor, an overwrite protection system consisting of a write protect flip-flop (1) whose two logical states signify "with write protection" and "without write protction" and also a gate (3) in the write line which is controlled by the write protect flip-flop and in whose logical "with write protection" state, write errors are prevented from being conducted to the individual memory locations, and, finally a mechanical switch element (5) whereby these components are connected in such a manner that the write protect flip-flop (1) can only be brought into the one logical "with write protection" state by the microprocessor, while it can only be brought into the other logical "without write protection" state, if and when the mechanical switch element (5) is actuated. The overwrite protection can apply depending on the embodiment to the entire electronically erasable memory or only to the subareas thereof.
摘要翻译： 在连接到微处理器的电可擦除存储器中存储数据以有效保护存储在存储器中的数据的方法和装置在微处理器的故障操作的情况下被无意地重写;由写保护触发器（1） ），其两个逻辑状态表示“具有写保护”和“无写保护”，以及由写保护触发器控制并且在逻辑“具有写保护”状态的写行中的门（3），写 防止误差被传导到各个存储器位置，最后是机械开关元件（5），由此这些部件以这样的方式连接，使得写入保护触发器（1）只能被带入一个逻辑“ 具有写保护“状态，而只有当机械开关元件（5）为 致力于 根据实施例，覆盖保护可以应用于整个电子可擦除存储器或仅对其子区域。
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公开(公告)号：US4688898A
公开(公告)日：1987-08-25
申请号：US697882
申请日：1985-02-04
IPC分类号： G01G23/37 , G02F1/1343 , G09F9/00 , G02F1/13
CPC分类号： G02F1/134327 , G01G23/3721 , G09F9/00
摘要： LCD display boards for electronic balances frequently also comprise, alongside the digits for the digital display of the weighing result, additional fields in which additional information is displayed by means of alphanumeric signs. The invention suggests that the segments of the digits for displaying the weighing result be individually provided with a line and controlled in parallel in order to achieve a very good display quality and that the segments for the display of the alphanumeric signs of the additional field, e.g. a 5.times.7 matrix, be connected in such a manner that they can be serially controlled in order to prevent the number of lines required from becoming too great.
摘要翻译： 用于电子天平的LCD显示板通常还包括用于数字显示称重结果的数字，附加字段，其中附加信息通过字母数字符号显示。 本发明提出，用于显示称重结果的数字段被分别设置有一条线并且被并行控制，以便实现非常好的显示质量，并且用于显示附加字段的字母数字符号的段，例如， 5x7矩阵以这样的方式连接，以便它们可以被串行控制，以便防止所需的线数变得太大。
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公开(公告)号：US4487280A
公开(公告)日：1984-12-11
申请号：US480721
申请日：1983-03-31
CPC分类号： G01G23/48
摘要： A correction of temperature errors of the measured value receiver is generally necessary in high-resolution electronic balances. This can be accomplished in a known manner by directly influencing the measured value receiver with the aid of an analogous temperature sensor or by digitizing the output signal of the temperature sensor in a digitizer on the output side and performing the correction in the digital signal processing part. The invention has the task of indicating a circuit which permits the high-resolution digitizer which is present in the balance in any case to be used for digitizing the temperature signal without diminishing its preciseness. A switch (25 in FIG. 1) is provided to this end which feeds the output signal of a temperature sensor (27) to the input of the digitizer (15) in addition to the signal of the measured value receiver (1 . . . 13) at certain times controlled by the digital signal processing unit (22). The sensitive measuring path of the balance is therefore not reversed as it is in the case of customary selector switches, but the temperature signal is added to the measured signal of the balance at certain times and calculated by the digital electronic elements.
摘要翻译： 在高分辨率电子天平中，通常需要校正测量值接收器的温度误差。 这可以以已知的方式通过借助于类似温度传感器直接影响测量值接收器或通过在输出侧的数字转换器中数字化温度传感器的输出信号并且在数字信号处理部分中进行校正来实现 。 本发明的任务是指示允许在任何情况下存在于天平中的高分辨率数字转换器用于数字化温度信号而不降低其精确度的电路。 除了测量值接收器（1）的信号之外，还提供了一个开关（图1中的25），用于将温度传感器（27）的输出信号馈送到数字转换器（15）的输入端。 在某些时刻由数字信号处理单元（22）控制。 因此，平衡的灵敏测量路径不会像常规选择开关那样反转，而是在某些时间将温度信号加到天平的测量信号上，并由数字电子元件计算。
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19.发明授权Measuring system having a balance with digital display having digit appearance modifying circuit 失效与具有数字外观修改电路的数字显示器具有平衡的测量系统
公开(公告)号：US4344494A
公开(公告)日：1982-08-17
申请号：US146399
申请日：1980-05-05
CPC分类号： G01G23/3707 , Y10S177/03
摘要： A balance is provided with a digital readout, a display device and transfer device for transferring measured values to the display device at a selected frequency. The frequency can be varied. An accessory circuit is provided for modifying at least the last digit appearing on the display device in response to an arrest criterion or a condition of the balance, such as an open measuring chamber or position of a draft shield. The criterion can be developed from comparing successive measured values.
摘要翻译： 提供了数字读出器，显示装置和传送装置的平衡，用于以所选择的频率将测量值传送到显示装置。 频率可以变化。 提供辅助电路，用于响应于暂停标准或平衡状态，例如打开的测量室或防风罩的位置，至少修改出现在显示装置上的最后一个数字。 该标准可以通过比较连续的测量值来开发。
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20.发明授权
公开(公告)号：US4758069A
公开(公告)日：1988-07-19
申请号：US860576
申请日：1986-05-07
CPC分类号： G09G3/18
摘要： The invention is relative to a method of statically (non-multiplexed) actuating a liquid crystal display which comprises several segments and a common back electrode, using a microprocessor which serially outputs the data to be displayed, and using a serial/parallel converter which statically makes the data to be displayed available for each segment of the liquid crystal display. The invention has the task of achieving recognition of functional error as follows: The data to be displayed is outputted approximately every 0.1 second by the microprocessor and the data for the individual segments and for the back electrode is inverted at every second data output. The failure of components then results in a blinking of the particular segment and is conspicuously indicated in this manner. In the case of alternating voltage actuation of the liquid crystal display, it is advantageous if the clock pulse of the alternating voltage actuation is also inverted at every second data output.
摘要翻译： 本发明是相对于静态（非多路复用）致动液晶显示器的方法，该液晶显示器包括若干段和公共背电极，使用串行输出要显示的数据的微处理器，以及静态地使用串行/并行转换器 使数据显示可用于液晶显示器的每个段。 本发明的任务是实现功能错误的识别如下：由微处理器大约每0.1秒输出要显示的数据，并且每秒数据输出反转各个段和背电极的数据。 组件的故障导致特定段的闪烁，并以这种方式显着地表示。 在液晶显示器的交流电压驱动的情况下，交流电压致动的时钟脉冲在每秒的数据输出也被反转是有利的。
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