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公开(公告)号：US4587399A
公开(公告)日：1986-05-06
申请号：US683499
申请日：1984-12-19
CPC分类号： B41J2/345
摘要： A thermal head is provided with a heat accumulating member disposed on a substrate, a plurality of heating resistors juxtaposed on the heat accumulating member in a manner to be spaced from each other, electrodes for supplying electric power to the heating resistors, and a protective member for preventing oxidation and wear of the heating resistors and the electrodes, these constituents being formed as layers. When the electric power is supplied to the electrodes, heat is generated by a heating portion of the heating resistor corresponding to the electrodes, and it is transmitted to a head surface via a thermally conductive member disposed in a printing dot portion of the protective member. The heat from the printing dot portion is used for effecting printing on a medium to-be-recorded through a thermosensitive sheet which lies in contact with the head surface.
摘要翻译： 热敏头设置有设置在基板上的蓄热构件，以与彼此间隔开的方式并置在蓄热构件上的多个加热电阻器，用于向加热电阻器供电的电极和保护构件 为了防止加热电阻器和电极的氧化和磨损，这些成分被形成为层。 当向电极提供电力时，由对应于电极的加热电阻器的加热部分产生热量，并且通过设置在保护部件的印刷点部分中的导热部件将其传递到头部表面。 来自打印点部分的热量用于通过与头表面接触的热敏片在要记录的介质上进行印刷。
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公开(公告)号：US4672392A
公开(公告)日：1987-06-09
申请号：US798245
申请日：1985-11-08
CPC分类号： B41J2/36
摘要： In order to adapt a thermal head for a thermal printer to a raised speed, the thickness .delta.(.mu.m) of a heat accumulating layer in the head is set at: ##EQU1## where k: temperature conductivity of the heat accumulating layer,t.sub.p : heating duration of the thermal head, andt.sub.O : printing cycle of the thermal head.
摘要翻译： 为了使热敏打印机的热敏头适应于升高速度，头部中蓄热层的厚度Δ（μm）设定为：其中k：蓄热层的温度传导率，tp ：热头的加热持续时间，以及tO：热敏头的打印周期。
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公开(公告)号：US4881185A
公开(公告)日：1989-11-14
申请号：US30606
申请日：1987-03-27
申请人： Koji Murakami , Kazuya Higeta , Hachiro Touchi
发明人： Koji Murakami , Kazuya Higeta , Hachiro Touchi
摘要： In a method and apparatus for measuring temperature by using a state change of a working fluid, a temperature measurement is executed in a manner such that the working fluid is initially supplied at a constant mass flow rate into a flow channel having a throttle portion at a temperature-sensitive portion. Upon the measurement of a pressure difference between opposite ends of the throttle portion, the temperature can be determined through a calculation using the measured pressure difference. The temperature measuring apparatus includes a source of a working fluid and a probe. The probe includes an external cylinder closed at one of its ends and an internal cylinder which is accommodated in the external cylinder and has a capillary tube at its forward end. The apparatus further includes a supply tube for introducing the working fluid from the source into either the internal cylinder or the external cylinder, and a pressure control device. A mass flow control device is further disposed in series with the supply tube to control the mass flow rate. A differential pressure gauge for detecting a pressure drop across the capillary tube and a temperature determining device for determining the temperature in accordance with a signal output from the differential pressure gauge is included in the temperature measuring apparatus.
摘要翻译： 在通过使用工作流体的状态变化来测量温度的方法和装置中，以这样的方式执行温度测量，使得工作流体最初以恒定的质量流量供应到具有节流部分的流动通道 温度敏感部分。 在测量节流部分的相对端部之间的压力差时，可以通过使用测量的压力差的计算来确定温度。 温度测量装置包括工作流体源和探针。 探针包括在其一端封闭的外筒和容纳在外筒中并在其前端具有毛细管的内筒。 该装置还包括用于将来自源的工作流体引入内筒或外筒中的供给管和压力控制装置。 质量流量控制装置还与供应管串联设置以控制质量流量。 用于检测毛细管上的压降的差压计和用于根据从差压计输出的信号确定温度的温度确定装置包括在温度测量装置中。
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