Mainly on the automatic control system for greenhouse design, on the temperature, humidity, light intensity of the principles and methods of measurement.
主要介绍了对温室大棚自动控制系统的设计。阐述了温度,湿度,光照强度的测量原理和方法。
The new pressure switches with many advantages such as simple circuit and manufacturing technique, lower cost, can be used in measurement, alarm, control of pressure and temperature.
这种新型压力开关具有电路和制造工艺简单、成本低等优点,可应用于压力与温度的检测、报警和控制领域中。
This paper discussed on how to improve the accuracy of coal true relative density measurement in temperature control, blank experiment, process control and enhancing management.
从温度控制、空白试验、操作过程和加强管理等方面,阐述了如何在煤的真相对密度的测试过程中提高测定的准确度。
The PLC is used in automatic pressure surge control, oil temperature control, product test control, and automatic measurement of pressure, flow, temperature, speed, torque, etc.
PLC下位机完成转向泵的压力冲击自动控制、油温自动控制、出厂试验自动控制和压力、流量、温度、转速、转矩等参数的自动测试。
It is more suitable for the continuous temperature measurement and intellectualized control of melting, transfering, pouring and solidification for forming of hot molten metal.
它适用于高温熔体在熔炼、转运、浇注及凝固成型等过程的温度连续测量及其智能控制。
The measurement of temperature adopts DS18B20 temperature sensor and the measurement value is displayed by LEDs. The Fuel Cell temperature is controlled by cooling fan which adopts PWM control.
温度的测量用DS18B20温度传感器测量,并用数码管显示测量值,用PWM控制冷却风扇控制温度到恒定值。
The instruments for measurement of temperature, pressure, flow, level and concentration, control valves supplied for DCS and relative DCS used in sulphuric acid plants of China are described.
介绍目前我国硫酸装置DCS使用的温度、压力、流量、液位、 成分分析仪表和调节阀以及相关的DCS 系统。
This system was composed of a temperature controlled tank , switch measurement circuit , temperature control circuit , interface circuit , an industrial manipulative computer, and so on.
本文介绍了温度继电器自动测试系统的设计,此系统由温控箱、开关量检测电路、温度控制电路、接口电路及工控机等硬件组成。
The part on hardware consists of the main control circuit, environment data collecting, temperature measurement and alarm circuit, and power control circuit, etc.
其第一部分为硬件设计:主要控制电路、数据采集、测温报警、调功电路等组成。
The measurement and the control of temperature difference are briefly introduced.
简单介绍了温差的检测与控制。
An inexpensive microcomputer assisted system has been presented for on-line measurement and real-time control of temperature and pressure in vapor-liquid equilibrium determinations.
本工作建立了微机联机的温度和压力实时控制系统。
This paper reviews the work principle of the reactor for deposition temperature, pressure and gas flow control, and the measurement theory of the measurement devices.
其中着重描述了反应腔对反应温度,反应压力和气体流量的控制方法,以及测量设备对淀积薄膜性能的测量原理。
In the present system of fire controlling and alarming, it is essential to take the exact measurement and effective control of the actual temperature and its ascending speed in the detecting area.
在当前的消防报警控制系统中,对被探测区域温度的准确测量和有效控制是消防工作质量的根本保证。
Proficiency with methods of level, temperature, pressure and flow measurement is required, as well as knowledge relating to process control, and safety systems.
需要精通液位,温度,压力和流量测量的方法,以及有关过程控制和安全系统方面的知识。
Absrtact: in the field of temperature monitoring and measurement system design, the traditional temperature display and control center equipment are PC.
摘要:在温度监测系统的设计工作中,传统的温度显示和设备控制中心都是在PC机上。
Conversion and read data through a unified 89c51 microprocessor, Finally, the digital control demonstrated by numerical measurement of the temperature.
转换和读取的数据通过微处理器89c51进行统一处理,最后通过数码管显示出所测量的温度数值。
Meanwhile, the system control of the distributed optical fiber temperature sensor plays an important role in ensuring the sensor stability and providing a good support for the accurate measurement.
同时,光纤传感器的系统控制对保证传感器稳定工作、为准确测量提供良好支撑具有重要的作用。
In order to meet the needs of high accuracy of temperature measurement for a data process and control device, a simple calibration method for the bridge circuit measuring resistances is proposed.
针对“数据处理和控制装置”测温电路的高精度 要求,提出了一种分档电桥电路的标定方法。该方法 不仅简单实用,在电桥分档位较多时,能有效减少标定 的工作量,而且能达到较高的精度。
A heating element is designed using resistance heating silk and printed board, and an instrument of temperature measurement and control is designed using transistor as the temperature sensor.
介绍利用电阻加热丝、印制基板材料设计制做的加热元件和用晶体管作温度传感器设计制做温度测量控制器的电路工作原理及其在物理实验中的应用。
It owns the most advanced production lines of industrial temperature probes and Heat-meter probes on the world and can provide the customers with entire solutions on measurement and control.
公司拥有世界最先进的工业探头及热量表探头生产线,可为客户提供测量及控制领域完整的解决方案。
Temperature measurement and control technology has a wide-spread application in various fields of industry engineering as well as daily lives.
温度测控在日常生活、工业生产工程各领域均具有广阔的应用前景。
The thesis introduces a long-distance temperature measurement and control system which is based on the LM35 temperature sensor. It mainly discusses the frame and the work theory of the whole system.
本文介绍了一种应用LM 35温度传感器开发的远程温度测量与控制系统,重点阐述了整个系统的结构及其工作原理。
The basic theory of laser remanufacturing need to be developed deeply, which limited the application of it , such as temperature measurement and measurement control, and so on.
但其中的许多基础理论问题尚需深入开展研究,如激光再制造过程中温度及尺寸精度控制检测等问题,使激光再制造技术的应用受到了很大限制。
The temperature control system with high precision and fast response was used for the aided experiment on measurement of water activity, and it achieved a good control effect.
该温度控制系统用于水分活度测量辅助实验,精度高、响应快,获得了良好白勺控制效果。
The measurement and control system of 3D high-temperature& high-pressure complicated replacing physical simulator is introduced, which includes structural design and developmental mode.
本文主要介绍了高温高压复杂驱动体系三维物理模拟装置测控系统的结构设计和开发方法。
The measurement and control system of 3D high-temperature& high-pressure complicated replacing physical simulator is introduced, which includes structural design and developmental mode.
本文主要介绍了高温高压复杂驱动体系三维物理模拟装置测控系统的结构设计和开发方法。
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