第二次工业革命则是让人类进入了机械时代，其能源以石油为主，截止到今天为止，煤炭和石油依然是当今世界主要能源。在甘肃庆阳发现特大型油田，其储量达50亿吨，资源总价值超4万亿，甘肃大油田的发现，我国石油的发展打下了坚实的基础，让我国在进口石油之时有了踏实的底气。  兰州市、嘉峪关市、金昌市、白银市、天水市、武威市、张掖市、平凉市、酒泉copy市、庆阳市、定西市、陇南市,等地区的很多油田开采上都有广泛的使用方向,并且在庆阳市在2019年发现的大油田,在不久的将来会被广泛的使用.

立足西北,发展西北工业自动化使命感的西安华恒仪表制造厂家:目前拥有三大技术实力，一是全隔离的智能电路处理单元技术，二是金属电容传感器的制造技术，三是全系列节流装置的多参量技术。
在突出的液位/流量使用变送器使用有着超过40年的技术优势和使用范畴.
单法兰液位变送器是一种直接安装在管道或容器上的现场变送器。单法兰液位变送器可对各种容器进行液位、密度的准确测量，分为平法兰和插入式法兰两种，由于隔离膜片直接与液体介质相接触。无须将正压侧用导压管引出，因此适用于高温、高粘度、易结晶、易沉淀和强腐蚀等介质的测量。
单法兰变送器分插入式和平法兰两种，两种变送器的测量原理和安装方式基本相同，但不同的工艺条件对变送器的测量数据影响是非常大的。以制盐行业蒸汽冷凝水闪发桶为例，A为蒸汽冷凝水进口，B为闪发蒸汽出口，C为单法兰变送器安装位置．D为蒸汽冷凝水排水管道，E点为单法兰变送器的负压侧取压点。
插人式单法兰液位变送器还是平法兰液位变送器归根结底都属于差压变送器，其测量液位的原理都是通过公式P=pgh计算出介质在满液位时的压强， 然后将变送器的量程负迁移后通过差压计算容器内液位的高度。所以，只有压力测量准确了，液位才有可能是正确的。插人式单法兰液位变送器的优点是在黏度高，颗粒大的介质中不易发生堵管现象， 但在应对流体冲击较为严重的环境中还是显得有些乏力
单法兰液位变送器也需要连续测量界面和密度，要在卫生清洁要求很高的场合使用。如食品、饮料和医药工业生产中，不仅要求变送器接触介质部位符合卫生标准，并且应便于冲洗，以防止不同批量介质的交叉污染。可消除导压管泄漏污染周围环境，可免去采用隔离液时，因测量信号的不稳定，需要经常补充隔离液的繁琐工作。
从中东各国以及美国的反应来看，随着世界石油资源的消耗，在未来石油紧缺之时，或许将爆发更大的资源争夺战，在这种背景之下，国内石油的储量是越多越好，总之一句话，石油在手，天下我有。单法兰液位变送器也需要连续测量界面和密度，要在卫生清洁要求很高的场合使用.也能够使用.
华恒变送器厂家研发出传感器和智能电路板两项核心技术，不仅所有产品的核心部件技术全部掌握，工业自动变送器厂家的精确度也在不断提高，由0.2级提高到0.1级。还可通过对所掌握核心技术进行延伸，变形出测流量、测温度的其他产品。

The second industrial revolution is to let human beings enter the mechanical age. Its energy is mainly oil. Up to now, coal and oil are still the main energy sources in the world. The discovery of large oil fields in Qingyang, Gansu Province, has a reserves of 5 billion tons and a total resource value of more than 4 trillion. The discovery of large oil fields in Gansu Province has laid a solid foundation for the development of China's oil industry, which provides a solid foundation for China to import oil. Lanzhou City, Jiayuguan City, Jinchang City, Baiyin City, Tianshui City, Wuwei City, Zhangye City, Pingliang City, Jiuquan copy City, Qingyang City, Dingxi City, Longnan City and many other areas have a wide range of oil field exploitation directions, and the large oil field found in Qingyang City in 2019 will be widely used in the near future
Based on the northwest, Xi'an Huaheng instrument manufacturer, which develops the sense of mission of northwest industrial automation, now has three major scientific and technological strengths, one is the technology of fully isolated intelligent circuit processing unit, the other is the manufacturing technology of metal capacitance sensor, and the third is the multi parameter technology of full series throttling devices.
It has more than 40 years of technology advantages and application scope in outstanding liquid level / flow transmitter
Single flange liquid level transmitter is a kind of field transmitter installed directly on the channel or vessel. The single flange liquid level transmitter can accurately measure the liquid level and density of various vessels, which can be divided into two types: flat flange and plug-in flange. Because the isolation diaphragm is in direct contact with the liquid medium. It is not necessary to lead the positive pressure side out with a pressure pipe. This method is applicable to the measurement of high temperature, high viscosity, easy crystallization, easy precipitation, strong corrosion and other media.

There are two kinds of single flange transmitters: plug-in type and flat flange type. The measurement principle and installation mode of the two transmitters are basically the same, but different process conditions have a great influence on the measurement data of the transmitter. Taking the flash drum of steam condensate in salt industry as an example, a is the inlet of steam condensate, B is the outlet of flash steam, C is the installation position of single flange transmitter, D is the drainage pipe of steam condensate, and E is the pressure tapping point on the negative pressure side of single flange transmitter.
Plug in single flange liquid level transmitter or flat flange liquid level transmitter are all differential pressure transmitters in the final analysis. The principle of measuring liquid level is to calculate the pressure of medium at full liquid level through the formula P = pGH, and then calculate the height of liquid level in the vessel through differential pressure after the range of transmitter is negatively shifted. Therefore, only when the pressure measurement is accurate can the liquid level be correct. The advantages of plug-in single flange liquid level transmitter are that it is not easy to block the pipe in the medium with high viscosity and large particles, but it still appears to be weak in the environment with severe fluid impact
The single flange liquid level transmitter also needs to continuously measure the interface and density, which should be used in the occasions with high requirements of sanitation and cleaning. For example, in the production of food, beverage and medicine industry, it is not only required that the contact medium part of the transmitter meet the health standard, but also should be flushed to prevent cross contamination of different batches of media. It can eliminate the leakage of the impulse pipe and pollute the surrounding environment. It can avoid the tedious work of replenishing the isolation liquid frequently because of the instability of the measurement signal when using the isolation liquid.
From the reactions of the countries in the Middle East and the United States, with the consumption of world oil resources, in the future when the oil is in short supply, there may be a greater battle for resources. In this context, the more domestic oil reserves, the better. In a word, oil is in hand, and I have it all over the world. The single flange liquid level transmitter also needs to measure the interface and density continuously. It should be used in the places with high requirements of sanitation and cleanness. It can also be used

華恒變送器廠家研發出感測器和智慧電路板兩項核心技術，不僅所有產品的核心部件科技全部掌握，工業自動變送器廠家的精確度也在不斷提高，由0.2級提高到0.1級。還可通過對所掌握核心技術進行延伸，變形出測流量、測溫度的其他產品。