Static Pressure Sensor and Transmitter Features and Applications

The static pressure sensor or static pressure transmitter is based on atmospheric pressure or absolute vacuum, and compares the difference between the measured pressure and atmospheric pressure or absolute vacuum.

The application of Static Pressure Sensors and Transmitter in industry is not only to measure the pressure of pipelines or tanks, but also to measure liquid level. Let’s look at it in detail below.

RFQ Pressure Sensors
Static Pressure Sensor and Transmitter

What is a static pressure sensor?

Static pressure sensors are often used to measure static air pressure. Such as the static pressure on air filters and cooling coils, the input and discharge pressure of blowers, etc.

In ventilation systems, static pressure is the pressure of the air inside the building relative to the air outside when the exhaust fans are turned on. Measuring and maintaining proper negative pressure allows ventilation systems to more effectively mix outside air with inside air.


Diaphragm pressure sensors are based on the structure of the sensor. According to the sensing principle, diaphragm pressure sensors can be divided into different types such as piezoresistive, strain gauge, inductive, capacitive, and piezoelectric.

Among the above-mentioned pressure sensors with different principles, piezoelectric pressure sensors are only suitable for measuring dynamic pressure, so dynamic calibration is required;

Other dynamic and static pressures can be measured, and the most widely used one belongs to the quasi-static measurement with very low frequency. Therefore, static calibration is the most widely used calibration form. When the measured pressure frequency band is wide, all kinds of pressure sensors should be calibrated for frequency response.

Learn more about: Pressure Transmitter Calibration Formula

Hydro Static Level Transmitter

Hydrostatic level transmitters are based on the principle that the measured static pressure of a liquid is proportional to the height of the liquid. A device that converts static pressure into electrical signals by using the piezoresistive effect of diffused silicon or ceramic sensitive elements.

After temperature compensation and linear correction, it is converted into 4-20mADC standard current signal output.

The sensor part of the submersible static pressure liquid level transmitter can be directly put into the liquid. The transmitter part can be fixed by flange or bracket, which is very convenient to install and use.


For deep well level measurement, especially deep wells, we recommend submersible hydrostatic level transmitters.

The submersible hydrostatic pressure level transmitter is based on the principle of hydrostatics, which is converted into liquid level height through the measurement of liquid pressure. Fully sealed submerged measurement, integrated structure and standardized output signal. It provides convenience for on-site use and automatic control.

Then through reasonable selection and design of liquid-wetted materials, cables, protective tubes, etc. The liquid level of different media can be measured. It is suitable for deep mine liquid level measurement, groundwater level, hydrological detection, long-term underwater measurement of reservoirs, rivers, oceans, etc.

It is very important to ensure the full water level of the fire water tank and the high fire water tank, and to be able to monitor remotely in the fire control room.

Using the drop-in water level sensor, the water level probe is directly put into the bottom of the fire pool or water tank. In the fire control center, the real-time water level of the fire water tank can be monitored in real time. It also has a high and low liquid level alarm function to ensure that the fire water tank operates at a full water level.

Sino-Inst offers reliable pressure transmitter, level transmitter, and flowmeters for fire water tank/water treatment monitoring applications. Such as water management, sewage treatment, water purification treatment, etc.

High Temperature Pressure Sensor is used in industrial fields such as water plants, oil refineries, sewage treatment plants, building materials, light industry, machinery, etc. to achieve the measurement of liquid, gas and vapor pressure.

Application examples:

  • Industrial field process pressure detection
  • Laboratory pressure calibration system
  • Nautical and shipbuilding
  • Aviation and aircraft manufacturing.
  • Air separation equipment and thermal power units

Cryogenic pressure transducer has small size, high measurement accuracy, high dynamic response frequency, strong corrosion resistance and long working life.

Our professional technical group provides you with customized services. This product is mainly used for: low temperature scientific experiment, liquid Oxygen, liquid nitrogen, liquid hydrogen, liquid helium, etc. Pressure and low temperature measurement of cooling tanks, cryogenic storage tanks, propellants, etc.
Cryogenic storage tanks for aerospace, aviation, naval vessels, etc.

Most of our liquid level sensors can output liquid level signals, such as 4-20mA signal, 0-10V signal, RS485 and so on.

However, the liquid level transmitter alone cannot calculate the liquid volume of tanks of different sizes. It’s too complicated. A separate recorder is required to calculate it.

Therefore, the digital display volume meter can collect, display and convert the liquid level of various regular and irregular tanks in the industrial field into the corresponding tank volume. It is suitable for monitoring, controlling and collecting various process parameters.

Read More about: Common Pressure Sensor Applications

More Pressure Measurement Solutions

Flow Pressure Transducers for Fluid Pipelines

Flow Pressure Transducers are measurements of fluid pressure within a pipeline. When fluid flows through a pipe, pressure acts on the pipe wall. The medium in the pipeline can be…

Sino-Inst is a manufacturer of Static Pressure Sensor and Transmitters. We offer more than 50 types of pressure sensors. Main products include compact pressure transmitters, industrial pressure transmitters, differential pressure transmitters, single pressure crystal silicon transmittance pressure transmitters, diff pressure transmitter, high temperature pressure transmitter, explosion-proof pressure transmitter, pressure transmitter, custom pressure transmitter, with remote pressure transmitter, 316 diaphragm pressure transmitter.

Read more about: What is Diaphragm pressure gauge?

The static pressure sensor or static pressure transmitter is based on atmospheric pressure or absolute vacuum, and compares the difference between the measured pressure and atmospheric pressure or absolute vacuum.

For static, slowly changing pressure measurement. The sensor usually uses a high stability, thin film piezoresistive sensing element. The stability of the sensor and the accuracy of the measurement can meet the requirements of the industrial control field. There are a variety of connectors, electronic connections, signal output formats, accuracy and a wide range of ranges to choose from. These components are an ideal match for process monitoring and control, liquid level measurement, hydraulic system test studies and test cell requirements.

Sino-Inst’s entire team is well trained, so we can ensure that each customer’s needs are met. If you need any help with your product requirements, whether it is a Static Pressure Sensor and Transmitter, level sensors, or other equipment, please give us a call.

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This entry was posted in Pressure Measurement Sloutions, Blog by KimGuo11. Bookmark the permalink.

About KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects. Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.