The popularization of large scale central air conditioning system (CACS) has brought forward a new pro blem,i.e. how to measure the cooling and heating quantum accurately. This problem will directly affect the qua ...The popularization of large scale central air conditioning system (CACS) has brought forward a new pro blem,i.e. how to measure the cooling and heating quantum accurately. This problem will directly affect the qua lity of modern property management. So the study on the technology of measuring heat and cool is very necessary. In this paper, the detailed thermal analysis and the mathematical model of relative parameters that affect the measurement of heat and cool are discussed. A sample instrument based on the model is made, After the trial use by several customers, the device is proved to be practical, worthwhile and of good capacity.展开更多
Taking a specific production process as an example, this paper introduces the design of multi slot and unequal temperature PID controller based on single chip microcomputer. The mathematical implementation method...Taking a specific production process as an example, this paper introduces the design of multi slot and unequal temperature PID controller based on single chip microcomputer. The mathematical implementation method of PID algorithm and the design method of the hardware and software are discussed, The principle diagram of the hardware circuit implementing the control algorithm and the features of the software possessed are also presented.展开更多
Y2000-62040-953 0020850智能测量系统中软件元件的计量学评估=On themetrological evaluation of the software component of in-telligent measuring systems[会,英]/Balsamo,A.&Mari.L.//Proceedings of 16th IEEE Instrumentati...Y2000-62040-953 0020850智能测量系统中软件元件的计量学评估=On themetrological evaluation of the software component of in-telligent measuring systems[会,英]/Balsamo,A.&Mari.L.//Proceedings of 16th IEEE Instrumentationand Measurement Technolokay Conference,Vol.2.展开更多
文摘The popularization of large scale central air conditioning system (CACS) has brought forward a new pro blem,i.e. how to measure the cooling and heating quantum accurately. This problem will directly affect the qua lity of modern property management. So the study on the technology of measuring heat and cool is very necessary. In this paper, the detailed thermal analysis and the mathematical model of relative parameters that affect the measurement of heat and cool are discussed. A sample instrument based on the model is made, After the trial use by several customers, the device is proved to be practical, worthwhile and of good capacity.
文摘Taking a specific production process as an example, this paper introduces the design of multi slot and unequal temperature PID controller based on single chip microcomputer. The mathematical implementation method of PID algorithm and the design method of the hardware and software are discussed, The principle diagram of the hardware circuit implementing the control algorithm and the features of the software possessed are also presented.
文摘Y2000-62040-953 0020850智能测量系统中软件元件的计量学评估=On themetrological evaluation of the software component of in-telligent measuring systems[会,英]/Balsamo,A.&Mari.L.//Proceedings of 16th IEEE Instrumentationand Measurement Technolokay Conference,Vol.2.
