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公开(公告)号：US4384262A
公开(公告)日：1983-05-17
申请号：US248443
申请日：1981-03-27
申请人： Sigeyuki Akita , Hiroaki Tanaka
发明人： Sigeyuki Akita , Hiroaki Tanaka
摘要： In an oscillator circuit responsive to a predetermined temperature and including an astable multivibrator, a switching transistor inverts an output voltage from a first transistor of the multivibrator with a predetermined time delay, and a feedback capacitor is responsive to the inverted output voltage from the switching transistor to bias a reference capacitor connected between the output terminal of the first transistor and the input terminal of a second transistor of the multivibrator at opposite voltage polarity relative to that of a terminal voltage across the reference capacitor, a capacitance of the feedback capacitor being determined to turn off the second transistor due to the bias of the feedback capacitor when ambient temperature becomes the predetermined one under exposure of the second transistor to the ambient temperature.
摘要翻译： 在响应于预定温度并包括不稳定多谐振荡器的振荡器电路中，开关晶体管以预定的时间延迟来反转来自多谐振荡器的第一晶体管的输出电压，并且反馈电容器响应于来自开关晶体管的反相输出电压 将连接在第一晶体管的输出端子和多谐振荡器的第二晶体管的输入端子之间的参考电容器相对于参考电容器两端的端子电压相反的极性偏压，将反馈电容器的电容确定为 当第二晶体管暴露于环境温度时，当环境温度变为预定值时，由于反馈电容器的偏置，关闭第二晶体管。
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公开(公告)号：US4370070A
公开(公告)日：1983-01-25
申请号：US234372
申请日：1981-02-13
申请人： Marcel H. Leroux
发明人： Marcel H. Leroux
摘要： An electronic digital thermometer is provided with temperature-responsive means for producing pulses at a frequency related in a known manner to a sensed temperature. A control means permits the transmission to a counting means for a fixed period of time only of a selected one only of at least two predetermined portions of the pulses. The portions of the pulses transmitted are selected to be proportional to the magnitudes of the sensed temperature as expressed in respective temperature scales, preferably the Celsius and Fahrenheit scales. Decoding and display means are coupled to the counting means for converting the number of pulses counted by the counting means during the fixed period of time into a digital display of the sensed temperature in the selected scale.
摘要翻译： 电子数字温度计设置有温度响应装置，用于以与已知方式相关的频率产生脉冲到感测温度。 控制装置允许只有脉冲的至少两个预定部分中的选定的一个传输到计数装置一段固定的时间段。 传输的脉冲的部分被选择成与感测温度的大小成比例，如各温度标度所表示的，优选摄氏和华氏度。 解码和显示装置耦合到计数装置，用于将在固定时间段期间由计数装置计数的脉冲数转换成所选择的刻度中感测温度的数字显示。
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公开(公告)号：US4217477A
公开(公告)日：1980-08-12
申请号：US856098
申请日：1977-11-30
申请人： Sigeo Matsubara , Tatsuya Tsuda
发明人： Sigeo Matsubara , Tatsuya Tsuda
CPC分类号： H05B6/6452 , G01K7/24 , G05D23/1909 , G05D23/24
摘要： The present invention is directed to a microwave oven which may operate in a temperature control mode, wherein the temperature of a food to be cooked is maintained between two selectable values. The food temperature is sensed by a probe adapted for insertion into food being cooked in the microwave oven. The probe is electrically communicated to a microwave generation control circuit through a plug which is removably engaged in a socket secured by a microwave oven wall. When the plug is engaged by the socket, the microwave oven is automatically placed in the temperature control mode.
摘要翻译： 本发明涉及一种微波炉，其可以在温度控制模式下操作，其中要烹饪的食物的温度保持在两个可选择的值之间。 通过适于插入到在微波炉中烹饪的食物中的探针感测食物温度。 探针通过插头电连接到微波产生控制电路，该插头可移除地接合在由微波炉壁固定的插座中。 当插头与插座接合时，微波炉将自动置于温度控制模式。
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公开(公告)号：US4210024A
公开(公告)日：1980-07-01
申请号：US964520
申请日：1978-11-29
CPC分类号： G01K7/24 , G01D3/0365 , G01K1/20
摘要： A temperature measurement apparatus comprising a temperature sensitive device such as thermistor and a reference resistor of small temperature coefficient of resistance, which are alternatively connected to an electric circuit which produces an output signal responding to change of resistance, and the apparatus comprises a memory which memorizes a reference output signal by a reference resistor at a predetermined reference environmental temperature and a reference voltage of a power source, and a calibration is made to a measured temperature value by use of said memorized reference output signal.
摘要翻译： 一种温度测量装置，包括诸如热敏电阻的温度敏感装置和具有小的电阻温度系数的参考电阻器，其可选地连接到产生响应于电阻变化的输出信号的电路，并且该装置包括存储器 通过参考电阻器在预定参考环境温度和电源的参考电压下的参考输出信号，并且通过使用所述存储的参考输出信号对测量的温度值进行校准。
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公开(公告)号：US4182183A
公开(公告)日：1980-01-08
申请号：US910067
申请日：1978-05-26
CPC分类号： A61B18/08 , G05D23/2401
摘要： A thermistor circuit, wherein a thermistor, a current-limiting resistor, a complementary resistor and a desired-value variable resistor are connected together in the form of a resistance bridge, where the one diagonal of the resistance bridge is linked to a comparator, and the output of the comparator is connected to a bridge feed point of the other diagonal of the resistance bridge via an RC element consisting of a resistor and a capacitor and via a switching transistor.
摘要翻译： 一种热敏电阻电路，其中热敏电阻器，限流电阻器，互补电阻器和期望值可变电阻器以电阻桥的形式连接在一起，其中电阻桥的一个对角线连接到比较器，以及 比较器的输出经由电阻器和电容器以及开关晶体管组成的RC元件连接到电阻桥的另一个对角线的桥接点。
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公开(公告)号：US4175437A
公开(公告)日：1979-11-27
申请号：US916533
申请日：1978-06-19
申请人： Dennis W. Burt
发明人： Dennis W. Burt
摘要： A fire, temperature or heat detection system is disclosed which comprises a cable having at least two conductors separated by insulation whose electrical characteristics vary with temperature, and means connected to the conductors of the cable for detecting variations in the electrical characteristics of the insulation.
摘要翻译： 公开了一种火灾，温度或热量检测系统，其包括具有至少两个由电气特性随温度变化的绝缘体分开的导体的电缆，以及连接到电缆的导体的装置，用于检测绝缘体的电气特性的变化。
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57.发明授权
公开(公告)号：US4148220A
公开(公告)日：1979-04-10
申请号：US841524
申请日：1977-10-12
申请人： Walter R. Spofford
发明人： Walter R. Spofford
CPC分类号： G01K7/25
摘要： A thermistor temperature sensing system includes a conventional comparator having a constant reference threshold voltage and a linearized thermistor sensor which in combination detect a limited range of desirable temperatures. A means is also disclosed for extending the linearization of the thermistor in a piecewise manner at at least one temperature extreme where linearity typically severely deteriorates. In a thermistor temperature sensing system, linearization of thermistor characteristics with respect to at least one temperature within the temperature extreme is achieved by utilizing circuitry which makes the threshold voltage of the conventional comparator a function of the setting of a potentiometer for a desired temperature within the temperature extreme to be sensed by a thermistor sensor. The piecewise linearization technique disclosed allows easy interface with the thermistor temperature sensing system for detection of an optimum of selectable temperatures in the extended range of linearized characteristics of the thermistor.
摘要翻译： 热敏电阻温度感测系统包括具有恒定参考阈值电压的常规比较器和线性化热敏电阻传感器，其组合地检测期望温度的有限范围。 还公开了一种用于将热敏电阻的线性化以分段方式延伸至至少一个通常严重劣化的线性度的极端温度的手段。 在热敏电阻温度感测系统中，热敏电阻特性相对于温度极限内的至少一个温度的线性化是通过利用电路来实现的，所述电路使常规比较器的阈值电压成为电位计的设定的函数， 温度极限由热敏电阻传感器检测。 所公开的分段线性化技术允许与热敏电阻温度感测系统的容易的接口，用于在热敏电阻的线性化特性的扩展范围内检测最佳可选温度。
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公开(公告)号：US4122322A
公开(公告)日：1978-10-24
申请号：US816196
申请日：1977-07-15
申请人： Masaru Ohkubo , Akihiko Ueno
发明人： Masaru Ohkubo , Akihiko Ueno
IPC分类号： G01K3/00 , G01K7/00 , G01K7/16 , G01K7/24 , G01K13/00 , H01R24/58 , H05B6/68 , H05B6/80 , H05B9/06
CPC分类号： H05B6/6452 , G01K13/00 , G01K3/005 , G01K7/00 , G01K7/16 , G01K7/24 , H01R24/58 , H01R2103/00
摘要： A temperature detecting unit extended, through a cable, from an inside wall of the microwave oven has a probe formed at end portion thereof for inserting the probe into an object such as food items to be heated for detecting the temperature of the object during the heating, so as to produce a signal indicative of the temperature of the object. The cable of the temperature detecting unit is formed by comparatively thin wires having sufficient flexibility and durability so as to facilitate the manipulation of the unit during inserting thereof into the object.
摘要翻译： 通过电缆从微波炉的内壁延伸的温度检测单元具有在其端部处形成的探针，用于将探针插入诸如待加热的食物的物体，以在加热期间检测物体的温度 ，以产生指示物体的温度的信号。 温度检测单元的电缆由具有足够的柔韧性和耐久性的相对细的线形成，以便于在将单元插入物体期间的操纵。
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公开(公告)号：US4121462A
公开(公告)日：1978-10-24
申请号：US656427
申请日：1976-02-09
申请人： Raymond F. Mohrman
发明人： Raymond F. Mohrman
CPC分类号： G01R13/405 , G01K1/04 , G01K13/002 , G01K7/24
摘要： Temperature indicating apparatus having a sensor for introduction into a region having a temperature to be measured. Circuitry responsive to the sensor supplies an electrical signal representative of the temperature in the region. A display provides a visual indication of the temperature in the region and includes a plurality of temperature indicators each of which represents a discrete temperature level. Circuitry responsive to the electrical signal selectively illuminates at any one time only that indicator which corresponds to the temperature represented by the electrical signal at that time.
摘要翻译： 温度指示装置具有用于引入到具有待测温度的区域中的传感器。 响应于传感器的电路提供表示该区域中的温度的电信号。 显示器提供该区域中的温度的可视指示，并且包括多个温度指示器，每个温度指示器表示离散的温度水平。 响应于电信号的电路在任何一个时间仅选择性地照亮与当时由电信号表示的温度相对应的指示符。
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公开(公告)号：US4114447A
公开(公告)日：1978-09-19
申请号：US656428
申请日：1976-02-09
申请人： Wally E. Creach
发明人： Wally E. Creach
CPC分类号： G01R13/405 , G01K1/02 , G01K13/002 , G01K7/24
摘要： Temperature indicating apparatus having a sensor for introduction into a region having a temperature to be measured and for supplying an analog signal whose amplitude is a function of the temperature therein. The analog signal amplitude is compared with a reference level which represents a preselected temperature level, and a signal is supplied when the analog signal amplitude reaches the reference level which thereby causes pulses to be supplied at a predetermined rate. A timer responsive to the pulses counts from zero to a preselected value and supplies a timing signal when the preselected value is reached. The time required for the timer to count from zero to the preselected value establishes a predetermined timing interval at the end of which a converter responsive to the timing signal converts the analog signal to a digital signal representative of the temperature in the region. Display circuitry responsive to the digital signal provides a visual indication of the temperature in the region being measured, this temperature being displayed only at the end of the predetermined timing interval.
摘要翻译： 温度指示装置具有用于引入到具有待测温度的区域的传感器，并且用于提供振幅是其中的温度的函数的模拟信号。 将模拟信号幅度与表示预选温度电平的参考电平进行比较，并且当模拟信号幅度达到参考电平时提供信号，从而使脉冲以预定速率提供。 响应于脉冲的定时器从零计数到预选值，并且当达到预选值时提供定时信号。 定时器从零计数到预选值所需的时间建立一个预定的定时间隔，在其结束时，响应于定时信号的转换器将模拟信号转换成代表该区域中的温度的数字信号。 响应于数字信号的显示电路提供了被测区域中的温度的可视指示，该温度仅在预定定时间隔结束时显示。
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