FLAT FILM PRESSURE TRANSDUCER

Excellent silicon wafer, Wheatstone-bridge and pressure-sensitive diaphragm are sealed in a steel house filled with glycerine or silicone to encase the interior components of the sensor. diaphragm sensors are very sensitive to rapid pressure changes. -- they are commonly used in very corrosive environments or with extreme over-pressure situations.

SENSOR SELECTION CRITERIA, A GOOD FLAT PRESSURE SENSOR SHOULD HAVE THE PROS UNDER BELOW

Diaphragm pressure transducerare able to give accurate and precise readings for controller to control electronic instrument to prevent overflow or avoid empty run damage, which are good for energy effectively and achieve long-term operating, However, some factors influence the suitability of pressure sensors: the characteristics of the measured media, environmental conditions, pressure range, and the level of precision in measurements made.

CHARACTERISTICS OF THE MEASURED MEDIA

The flat pressure sensor(elastic element) will be exposed to the medias used in the measuring process, therefore corrosion resistant metal diaphragms or foil are optimal for very harsh environments. The materials which might react with the process substances or degrade in corrosive media are unsuitable for use in the sensor.

ENVIRONMENT CONDITIONS

Corrosive environments, vibrations near pipe fittings, or extreme high temperatures are vital for the selecting of pressure sensors for the purpose of protect the pipes and facilities in very harsh environments.

PRESSURE RANGE

Pressure sensors or pressure transducers are designed with a limit of certain pressure ranges for different equipment and facilities. Because Large and complex equipment requires multiple sensors with high accuracy, but small civilian equipment may only need one sensor with ordinary accuracy, to choose the right pressure transducer is very important in the process.

SENSITIVITY

The more precise the pressure transducer, the more expensive it is, thus choosing pressure transducers that available to reach the wanted precision at the most suitable price is quite worthy. The compromise between accuracy and measuring time is also quite important, is unadvisable to use sensors that take a lot of time to give accurate pressure readings, High accuracy measure reading at short measuring time is viable when the price is very high.

OLD SCHOOL PRESSURE MEASURING METHODS

Old school pressure measuring methods have been developed and utilized in decades ago and some of them are still applied in some uncomplicated, small sized and low precision equipment.

The height of a liquid with known density is used to measure pressure. Using the equation P = ρgh, the gauge pressure can be easily calculated. These types of pressure measuring devices are usually called manometers. Mercury is used when you desire higher pressure measurements and not as great sensitivity.

This pressure measuring method is based on the idea that deformation of an elastic material is directly proportional to the pressure being measured. Such as Bourdon-tubes or Bourdon Gauge.

Bellows elements are cylindrical in shape and contain many folds. They deform in the axial direction (compression or expansion) with changes in pressure. Bellows can only be applied to low pressures with low accuracy

Electrical methods used for measuring pressure utilize the idea that dimensional changes in a wire affect the electrical resistance to the conductor. These devices that use the change in resistance of the wire are called strain gauges.

TYPES OF PRESSURE

Pressure is defined as force per unit area and is in calculate units of psi, Pa, Kpa, and Bar. Three type of reference pressures are used in pressure measuring industries.

Absolute pressure -Pressure measured in vacuum zero pressure environment, atomospheric pressure plus gauge pressure.

Gauge Pressure - Pressure measured in ambient atmosphere. absolute pressure minus atmospheric pressure.

Differential Pressure - pressure measurement based on same medias or in same facility in two positions.

APPLICATION

Flat pressure sensors are widely used in a variety of industries such as petrochemical, water purify ink, paint, mud and Dairy products with a certain possibility of viscous measurement.

LEFOO provide pressure differential monitor, differential pressure transmitter, peristaltic liquid pump, ro water purifier pump, etc. Contact us to know more.

Other supplier products

	STEPPER MOTOR PERISTALTIC PUMP	Lefoo Industrial Co., Ltd. was established in 2005, with fifty thousand square meters of floor space. Since its establishment, Lefoo has been commi...
	LEFOO STEPPER MOTOR PERISTALTIC PUMP	LEFOO STEPPER MOTOR PERISTALTIC PUMP Peristaltic pumps are very popular fluid transfer equipment with a wide range of applications. Peristaltic pu...
	LEFOO DIGITAL PRESSURE SWITCH	Pressure Range: -100~100kpa Pressure Accuracy: 1%FSO Work Temperature: 0~50 °C Measure media: Non-corrosive dry gas Output: digital 4~20ma/...
	HVAC PRESSURE SWITCH	HVAC Pressure Transducer Pressure Range: <16Bar~47Bar Adjustable Pressure Setting One-piece interface welded bellows element Fast rebound ...
	LEFOO PRESSURE TRANSMITTER MANUFACTURER	A pressure Transmitter (pressure transducer) converts the physical quantity 'force per area' into an industry-standard signal that machines can rea...

供应产品

Same products

	蔓越橘提取物	卖方: 永州菁木生物科技有限公司	蔓越莓主要生长在北美，含有独特的原花青素，可以防止细菌（尤其是大肠杆菌）粘附在身体细胞上，从而降低感染风险。它们还可以改善动脉粥样硬化，增强心血管健康。蔓越莓富含维生素 C、铁、抗氧化剂和原花青...
	水飞蓟提取物	卖方: 永州菁木生物科技有限公司	奶蓟草，也称为水飞草或水飞蓟，是一种菊科植物，其药用历史已有 2000 多年。它的名字来源于其压碎的叶子的乳白色汁液。其提取物富含水飞蓟素、水飞蓟宾、黄酮类化合物和其他抗氧化剂，可对抗自由基、增...
	槐米提取物	卖方: 永州菁木生物科技有限公司	槐米提取物源自中国、日本、韩国和越南盛行的槐树花，富含芦丁和槲皮素等黄酮类化合物。这些黄酮类化合物具有有效的抗氧化、抗炎和血管保护特性。因此，该提取物广泛用于传统医学和保健品中，以增强心血管健康...
	人参提取物	卖方: 永州菁木生物科技有限公司	人参提取物是从五加科植物人参的根、茎、叶中精心提取和精制而成。该提取物富含18种人参单体皂苷，可溶于80°C的水，易溶于乙醇。人参的使用已有数百年历史，人参皂苷是其研究最广泛的活性成分之...
	银杏叶提取物	卖方: 永州菁木生物科技有限公司	银杏叶提取物 (GBE) 是从银杏树的叶子中提取的，银杏树在中国的药用历史已有数百年历史。该提取物包含银杏叶总黄酮、银杏内酯和其他活性物质。 GBE具有多种健康功效，包括扩张血管、保护血管内皮组...