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公开(公告)号：US5697322A
公开(公告)日：1997-12-16
申请号：US593578
申请日：1996-01-30
CPC分类号： G01R1/08 , B60K37/02 , G01D13/28 , G04B19/305 , B60K2350/408 , Y10S116/06 , Y10S116/35 , Y10S116/36
摘要： An analog display includes a dial and a movable EL pointer positioned adjacent the dial for indicating a measured value. The pointer is an elongated EL lamp having a conductive pin extending through one end of the lamp and about which the lamp pivots. The pin is mechanically secured to the lamp and is electrically connected to the front electrode of the lamp. A hole larger than cross-sectional diameter of the pin is formed in the rear electrode and in the phosphor layer to prevent the pin from shorting the front electrode to the rear electrode. A conductive spring rests on the pin to provide electrical power to the front electrode. Power is supplied to the rear electrode either through a conductive ferrule attached to the rear electrode or through a resilient wiper. The wiper can be attached to the pointer or to the face of the dial. For plural pointers, concentric conductive pins are used with a sliding contact for the rear electrodes.
摘要翻译： 模拟显示器包括表盘和位于表盘附近的用于指示测量值的可移动EL指针。 指示器是具有延伸穿过灯的一端并且灯枢转的导电针的细长EL灯。 该销被机械地固定到灯上并且电连接到灯的前电极。 在后电极和荧光体层中形成大于销的横截面直径的孔，以防止引脚将前电极短路到后电极。 导电弹簧靠在销上以向前电极提供电力。 通过连接到后电极的导电套圈或通过弹性擦拭器将功率提供给后电极。 刮水器可以连接到指针或表盘的表面。 对于多个指针，使用同心导电引脚用于后电极的滑动接触。
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公开(公告)号：US5079509A
公开(公告)日：1992-01-07
申请号：US364626
申请日：1989-06-09
申请人： Hugh R. Marsh
发明人： Hugh R. Marsh
IPC分类号： G01R1/08
CPC分类号： G01R1/08
摘要： A scale is disclosed for a measuring instrument in which a plurality of display elements, specifically liquid crystal display elements which are energizable to a visible condition or an enhanced visible condition selectively to provide a linear scale or a logarithmic scale. The scale is divided into decades which specifically have twelve display elements of which ten are selectively energizable to provide the linear scale and then to provide the logarithmic scale.
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公开(公告)号：US4968930A
公开(公告)日：1990-11-06
申请号：US315669
申请日：1989-01-27
申请人： Joachim Grupp , Yves Ruedin , Fridolin Wiget , Jean-Pierre Haring
发明人： Joachim Grupp , Yves Ruedin , Fridolin Wiget , Jean-Pierre Haring
摘要： A device for displaying the value of a quantity represented by input data comprises a mobile indicator member (24) driven by a stepping motor (20), a control circuit (18) for this motor for delivering drive pulses to the motor in response to the input data to move the indicator member to a position corresponding to the value of the quantity, and a dial (26) for showing an indexing system, for example a scale, which cooperates with the indicator member to indicate the value at least approximately. The dial comprises a liquid crystal, electrochromic or electroluminescent electrooptical display device (26) which displays the indexing system in response to signals from another control circuit (28) when the latter receives an activation signal. The device enables values of a single quantity situated in different ranges or values of distinct quantities to be indicated, by making the cell selectively display corresponding indexing systems. A specific application of the device is for automobile dashboards.
摘要翻译： 用于显示由输入数据表示的数量值的装置包括由步进电动机（20）驱动的移动指示器构件（24），用于该电动机的控制电路（18），用于响应于 输入数据以将指示器元件移动到与数量值相对应的位置，以及用于显示索引系统（例如刻度）的刻度盘（26），其与指示器构件协作以至少近似地指示该值。 表盘包括液晶，电致变色或电致发光电光显示装置（26），当液晶，电致变色或电致发光电光显示装置接收到激活信号时，其响应于来自另一控制电路（28）的信号显示分度系统。 通过使单元格选择性地显示相应的索引系统，该设备使得位于不同范围或不同量的值中的单个量的值能够被指示。 该设备的具体应用是汽车仪表板。
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公开(公告)号：US4717871A
公开(公告)日：1988-01-05
申请号：US826381
申请日：1986-02-05
申请人： Young J. Yoo
发明人： Young J. Yoo
CPC分类号： G01R13/403 , G01D7/00 , G01R1/08
摘要： A measuring symbol driving circuit drives the measurement symbols on a liquid crystal display in a digital multimeter. This measuring symbol driving circuit includes a rotary measuring range changeover switch which selects the respective measuring symbols to be displayed. A control signal generating circuit receives the backplane pulse signal supplied to the common electrode of the liquid crystal display, and phase inverts this signal through the use of an exclusive OR gate in order to develop a control signal supplied to the measuring symbol selected by the measuring range changeover switch. Further, the driving circuit includes a circuit for monitoring the presence of a short circuit between the input jack and common electrode of the digital multimeter to selectively display a short circuit indicator symbol. This input comparing circuit receives the backplane pulse signal at one terminal of an exclusive OR gate and supplies the other terminal of an exclusive OR gate the output of a comparator which is logically high when a short circuit is detected in order to reverse the phase of the backplane signal to produce a control signal for application to the display symbol, and supply the logical low signal to the input of the exclusive OR gate to apply a signal equivalent to the backplane pulse signal to the control terminal of the short circuit symbol to maintain this symbol in a non-displayed state.
摘要翻译： 测量符号驱动电路驱动数字万用表中的液晶显示器上的测量符号。 该测量符号驱动电路包括旋转测量范围切换开关，其选择要显示的各个测量符号。 控制信号发生电路接收提供给液晶显示器的公共电极的背板脉冲信号，并且通过使用异或门使相位反相，以便产生提供给通过测量所选择的测量符号的控制信号 量程切换开关。 此外，驱动电路包括用于监视数字万用表的输入插孔和公共电极之间的短路的存在的电路，以选择性地显示短路指示符号。 该输入比较电路在异或门的一个端子处接收背板脉冲信号，并且在检测到短路时将异或门的另一端提供逻辑高的比较器的输出，以便反相 背板信号以产生用于显示符号的控制信号，并将逻辑低电平信号提供给异或门的输入，以将相当于背板脉冲信号的信号施加到短路符号的控制端，以保持该 符号处于非显示状态。
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公开(公告)号：US2970562A
公开(公告)日：1961-02-07
申请号：US79236959
申请日：1959-02-10
申请人： TELEFUNKEN GMBH
IPC分类号： G01R1/08
CPC分类号： G01R1/08
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公开(公告)号：US2772498A
公开(公告)日：1956-12-04
申请号：US28393352
申请日：1952-04-23
申请人： BENDIX AVIAT CORP
发明人： MILES GEORGE S
CPC分类号： G02B6/0046 , G01R1/08 , G02B6/005
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公开(公告)号：US1070310A
公开(公告)日：1913-08-12
申请号：US1909527098
申请日：1909-11-09
发明人： WESTON EDWARD
CPC分类号： G01R1/08
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公开(公告)号：US4745813A
公开(公告)日：1988-05-24
申请号：US26044
申请日：1987-03-16
申请人： Daniel C. MacManus
发明人： Daniel C. MacManus
摘要： An electric gage driving a pointer has an extended spindle so that the gage movement can be substantially spaced from the pointer. The gage includes a spindle, an armature driving the spindle, a bobbin supporting a bearing for the spindle and electrical coils around the bobbin. An outrigger support remote from the bobbin and adjacent the pointer holds another spindle bearing which may be misaligned with the bobbin. The bearing on the bobbin accommodates the misaligned spindle.
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公开(公告)号：US4415855A
公开(公告)日：1983-11-15
申请号：US230557
申请日：1981-02-02
申请人： Thomas A. Dubauskas
发明人： Thomas A. Dubauskas
CPC分类号： G01R5/02 , G01R1/00 , G01R1/08 , G01R13/02 , G01R13/407
摘要： An electrical indicator device for providing simultaneous relatively coarse analog, and higher-resolution, digital readings of a particular electrical parameter, all in one instrument. The device includes either a d'Arsonval meter movement or a servo-motor or other motivated electro-responsive device which carries a pointer movable over a predetermined portion of a calibrated meter scale plate, and a liquid crystal display having multiple digits, each digit being constituted of multiple segments. The segments are disposed completely within the confines of the meter scale plate, but lie substantially completely outside of the said predetermined portion thereof. The display is driven or energized by a digital voltmeter having its terminals connected to receive and monitor the same parameter that is being measured by the motivated electro-responsive device. The arrangement is such that the individual segments of the digital display are always completely visible regardless of the position which the pointer occupies with respect to the said predetermined portion of the scale plate.
摘要翻译： 一种用于在一个仪器中提供特定电参数的同时较粗略的模拟和更高分辨率数字读数的电指示器装置。 该装置包括d'Arsonval仪表机构或伺服电动机或其他动作电动响应装置，其携带可在校准的仪表刻度板的预定部分上移动的指针，以及具有多位数字的液晶显示器，每个数字为 由多个部分组成。 这些段完全设置在仪表刻度板的范围内，但基本上完全位于其所述预定部分的外部。 显示器被数字电压表驱动或激励，其数字电压表的端子被连接以接收和监视由激励的电响应装置测量的相同参数。 该布置使得数字显示器的各个段总是完全可见，而不管指针相对于刻度盘的所述预定部分占据的位置如何。
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公开(公告)号：US3996880A
公开(公告)日：1976-12-14
申请号：US599374
申请日：1975-07-28
申请人： Jack D. Cauldwell
发明人： Jack D. Cauldwell
CPC分类号： G01R21/01 , G01R1/08 , H04N17/00 , G01R15/002
摘要： A signal strength meter indicates signal level directly in dBmV. The signal under test is attenuated to a level which centers a meter indicator, and the attenuator movement is translated into numerical direct reading information of signal level. Push button switches select a channel for testing, and each switch incorporates gain compensation for the frequency of the signal to be tested. Within each channel the operator can select between audio and video carrier frequency.
摘要翻译： 信号强度表直接以dBmV表示信号电平。 被测信号被衰减到以仪表指示器为中心的水平，衰减器运动被转换成信号电平的数字直读信息。 按钮开关选择一个通道进行测试，每个开关都会对待测信号的频率进行增益补偿。 在每个通道内，操作者可以在音频和视频载波频率之间进行选择。
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