We select ni / cr alloy resistor as element together with ceramic embedding hearth ; select small flat - and - disc heat - even hubby ceramic sample holder , select ni / cr & ni / si thermoelectric couple ( type k ) as thermoscope with threads 0 . 5 mm in diameter which is installed in the middle of the holders symmetrically ; select aluminum silicate fire - retardant fiber as materials for heat preservation ; design some hardware , for example temperature controller & transporter , signal amplifier etc ; design controlling curve to heat stove ; and introduce the method of least squares nonlinear regression and subsection function to deal with data . in order to obtain the reasonable operation conditions and operation curve , we have also done many theory analysis and experiment discussions 通过理论和试验探讨，选用镍铬合金电阻丝作为加热元件，配以陶瓷质埋入式炉膛；选用陶瓷质小尺寸扁平?圆盘均热块体型样品支持器；选用0 . 5mm丝径镍铬?镍硅热电偶( k )作为测温元件；热电偶对称安置在样品支持器容器的中部；选用硅酸铝耐火纤维作保温材料；合理选用和设计了温度控制器、温度变送器、信号放大电路等硬件；采用升温曲线来控制炉膛供热过程；采用最小二乘法非线性回归与分段函数相结合的曲线模拟方法，进行图形处理。
Then it analyzed and discussed on circuit design of temperature transmittal , low consume circuit design , intrinsic safty circuit design , anti - jamming design , response of manifold signal , signal calibration , signal linearization and application of each layer from software and hardware . chapter1 : technology background and thesis research content chapter2 : fieldbus and associated technology chapter3 : total dissect of hart protocol chapter4 : concrete ways of how to realize hart protocol smart temperature transmitter chapter5 : frontier of fieldbus development - summary of ff protocol smart temperature transmitter 然后从硬件和软件两个方面分析和论述了hart协议智能温度变送器的温度变送电路（ a / d 、 cpu及外围、 d / a 、 v / i ）设计、低功耗电路设计、本安电路设计、抗干扰设计、多种输入信号响应、信号补偿、输入信号线性化处理、 hart协议数据链路层、应用层和物理层以及层间接口的实现。
This thesis discussed something about applying the technology of microprocessor and hart communications protocol to temperature transmitter , to realize temperature transmitter ' s signal compensating , self - calibration , self - diagnose , remote management , remote calibration , remote configuration , remote maintenance , remote control 本文论述了将微处理技术和hart协议通信技术引入温度变送器中，实现温度变送器的信号补偿、自适应校正、自诊断、远程管理、远程校正、远程组态、远程维护、远程监控等功能。
Academy of sciences of russia to develop jointly . with the constant renovated and perfected by the enterprise oneself afterwards , the company has developed a series of steady and reliable , good and cheap , being suitable for kinds of industrial automation observe and control pressure transmitter and temperature transmitter , has become a professional factory professional factory producing transmitter 以后经企业自身不断更新完善，开发出一系列稳定可靠价廉物美适合各种工业自动化测控的压力变送器温度变送器和液位变送器，成为一家专业的变送器生产的厂家。
We have many industry automize instruments such as temperature transmitter ( integrate temperature transmitter module ( double temperature transmitter module ) , integrate temperature transmitter , track isolation temperature transmitter , hanging temperature transmitter , pressure transmitter ( expanding silicon pressure transmitter , sapphire pressure transmitter , spraying ( metal slim film ) pressure transmitter , strain pressure transmitter , ceramic resistor , capacitance pressure transmitter , 1151 and 3151 series pressure transmitter , fluid location transmitter module ( specializing for fluid location meter ) , collocated electricity meter ( sigle round , double round ) , signal isolation ( single round , double round ) , transducer ( temperature , pressure ) , display head ( showing 100 % scale , lcd fluid crystal , led digital display ) , numerical instrument and so on 产品有温度变送器（一体化温度变送器模块（双支温变模块） 、一体化温度变送器、导轨式隔离温度变送器、壁挂式温度变送器、架装式温度变送器） 、压力变送器（扩散硅压力变送器、蓝宝石压力变送器、溅射式（金属薄膜）压力变送器、应变式压力变送器、陶瓷电阻、电容压力变送器、 1151 、 3151系列压力变送器） 、液位变送器模块（专为液位计厂配套） 、配电器（单回路、双回路） 、信号隔离器（单回路、双回路） 、传感器（温度、压力） 、配变送器的显示表头（ 100刻度显示、 lcd液晶显示、 led数码显示） 、数字仪表等工业自动化仪器仪表。
