High-pressure sensors can measure the pressure, flow rate, or liquid level of high-pressure media. High-pressure sensors use conical threaded interfaces or spherical threaded interfaces to ensure the sealing of high-pressure systems.
In this article, we will introduce the relevant knowledge of high-pressure sensors.
Sino-Inst Featured Product
What is a High Pressure Sensor
A high-pressure sensor is an instrument that converts pressure signals into electrical signals. It is similar to a common pressure sensor, but uses a specially customised method to measure greater pressures.
A common pressure sensor can withstand pressures of 0-60 MPa. A high-pressure sensor can be customised to measure pressures of 100 MPa to 1000 MPa.
High Pressure Sensor Features
Ultra High Pressure Resistance and Structural Stability
By adopting high-strength materials and special sealing structures, the sensor can effectively resist the impact and penetration of high-pressure media.
For example, in the high-pressure mud system of oil drilling platforms, the sensor needs to withstand the transient pressure of a high pressure, and its shell and core components must have anti-fatigue, corrosion-resistant characteristics, to ensure that there will be no leakage or structural deformation in long-term use.
Fast Response and Long-Term Reliability
High-pressure sensor response time can be as low as 1ms. It can capture real-time pressure fluctuations.
Through regular calibration, it can stably measure accurate results.
Anti-interference and environmental adaptability
High-pressure media are often accompanied by strong electromagnetic interference, high temperatures, vibration and other complex conditions, so high-pressure sensors must have a strong anti-interference ability. Through the built-in electromagnetic shielding layer, the use of digital signal transmission technology (such as RS485, CAN bus) and other ways to effectively reduce the influence of external electromagnetic signals on the measurement results.
In addition, it also adapts to severe vibration and shock, and other harsh environments.
High Accuracy and Wide Measuring Range
Our high pressure sensors can measure with an accuracy of ±0.5% FS, which can satisfy the stringent requirements for data accuracy in scientific research experiments, precision manufacturing and other fields.
At the same time, it covers a wide range of measurements. Users can choose the appropriate range according to the actual working conditions to avoid measurement errors or equipment damage caused by mismatched ranges.
High Pressure Sensor Working Principle
The working principle of high pressure sensors is based on the conversion of physical quantities. The specific principle is to convert the pressure of the high pressure medium into an electrical signal through the sensitive components, and then after amplification, filtering, calibration of the signal processing circuit, the output of standard electrical signals (such as 4 ~ 20mA, 0 ~ 10V) or digital signals for subsequent display, recording or control system use.
According to the different sensitive components, common high-voltage sensors can be divided into the following categories: strain gauge high-pressure sensors, capacitive high-pressure sensors, and piezoelectric and other high-pressure sensors.
Read More about 7 Types of Pressure Sensors: Different Types, Working Principles, and Definitions.
High Pressure Sensor Applications
High pressure sensors can adapt to a variety of high pressure resistant media due to their special customized materials and construction. For example:
1. Petrochemical industry
High pressure sensors play a key role in oil drilling, oil and gas transportation, chemical reactors and other processes.
For example,
Real-time monitoring of drilling fluid pressure is required during the drilling process to ensure the pressure balance at the bottom of the well and prevent blowout accidents.
in the long-distance oil and gas pipeline, the sensor can monitor the pressure changes in the pipeline and detect leakage or clogging problems promptly.
The high-pressure reaction environment in the chemical reaction kettle requires precise pressure control to ensure the efficiency of the reaction and the quality of the product.
2. Energy and Power Industry
In the fields of thermal power generation, hydroelectric power generation and nuclear power generation, high-pressure sensors are used to monitor the pressure parameters of steam pipelines, turbines, boilers and other equipment.
For example,
The thermal power plant’s main steam pipeline pressure is up to a high pressure, the sensor needs to monitor the pressure change in real time to ensure the stable operation of the turbine;A
nuclear power plant’s reactor cooling system pressure monitoring is more related to nuclear safety, which requires the sensor to have a very high reliability and anti-radiation ability.
3. Aerospace field
Aircraft engines, rocket propulsion systems and other equipment in the work will produce very high pressure.High-pressure sensors are used to monitor fuel pressure, hydraulic system pressure. It is useful to provide real-time data for the flight control system.
In the aerospace field, sensors also need to adapt to high pressure environments to ensure the safety of spacecraft during launch, flight and recovery.
4. Metallurgy and Manufacturing
Metallurgical processes require high pressure sensors for pressure control.
For example,
Steel plate rolling process, the pressure of high-pressure water descaling system needs to be maintained at a high pressure, in order to effectively remove the oxide skin on the surface of the steel plate.
10,000-ton hydraulic presses working pressure can reach hundreds of MPa, and the accurate measurement of the sensor is to ensure the premise of the workpiece processing accuracy.
5. Scientific research experiments
In materials science, fluid mechanics and other scientific research experiments, often need to simulate a high-pressure environment. A high-pressure sensor is an important tool to simulate high-pressure data.
For example, In ultra-high-pressure phase change experiments, the sensor needs to measure the pressure up to thousands of MPa to study the physical properties of materials under extreme conditions;
In fluid dynamics experiments, by monitoring the pressure distribution of the high-pressure flow field, the theoretical model can provide data support for the verification.
6. HVAC industry
In heating, ventilation and air conditioning (HVAC) systems, high-pressure sensors are used to measure operating pressures of refrigeration compressors, heat pump units and other equipment.
For example,
Compressor discharge pressure in the refrigeration system directly affects the refrigeration efficiency and equipment life. Real-time monitoring of pressure through high-pressure sensors can be used to timely adjust compressor operating parameters, to avoid damage to the equipment due to high pressure.
In the central air-conditioning system of a large-scale commercial building, the sensor also monitors the static and dynamic pressure inside the pipeline to optimize the distribution of airflow and to improve the efficiency of energy use and indoor comfort.
Why High Pressure Sensors are High Pressure Resistant
The high-pressure sensor’s elastic body is made of special materials and features an integrated structure design. It will not burst during ultra-high pressure measurement and control processes.
Our high-pressure sensors can be used for pressure measurement and control in large hydraulic equipment, etc., and feature spherical or conical seals to ensure the sealing of high-pressure systems.
Sino-Inst Customized Case
Our products have undergone multiple product tests and are guaranteed to be of high quality. We have relevant inspection reports. Recently, one of our customers ordered a high-pressure pressure sensor from us. The following are its parameters.
- Pressure Transmitter
- Model: SI702Q
- Measuring Range: 0-1000 MPa
- Accuracy: 0.5% FS
- Output Signal: 4-20 mA
- Threaded Connection: M20 x 1.5 mm Ball Joint with Hirschmann Connector
There are some other cases:
High Pressure Sensor and Normal Pressure Sensor Difference
| Parameters | Normal Pressure Sensor | High Pressure Sensor |
| measure range | 0-7Mpa | 0-100,150,200,250,300,500,700-1000MPa |
| accuracy | 0.10% | 0.50% |
| working temperature | -40-200℃ | -20-75℃ |
| Threaded interface | chuck, union, flange, or customized. | Cone head M20×1.5, ball head M20×1.5, M22×1.5, etc. Other threads can be designed according to customer requirements. |
| price | 100-300USD | 700-2000USD |
What is a pressure sensor also known as?
Pressure Sensor also known as Pressure Transducer and Pressure Transmitter. But they have some differences.
A pressure sensor is a probe that transmits the information it senses to a secondary instrument.
A pressure transducer consists of a sensitive element and a circuit. It converts pressure signals into electronic signals.
A pressure transmitter contains a pressure sensor and a signal conditioning circuit that amplifies, filters, and linearises signals to ensure signal stability and accuracy. It is suitable for complex working conditions.
What are the examples of pressure sensor in everyday life?
Pressure sensors can be found everywhere in everyday life.
For example, cell phones have built-in pressure sensors that measure altitude and atmospheric pressure. Tire pressure detection systems detect the air pressure of tires in real time, helping drivers to know the air pressure of tires in real time to ensure driving safety. In smart home appliances, such as floor sweepers, washing machines and water purifiers, there are pressure sensors to ensure their proper functioning.
What data do pressure sensors collect?
Pressure sensors can be used to measure pressure in absolute, gauge, differential and vacuum. It collects pressure values and pressure changes in real time to ensure the stable operation of the equipment.
In conclusion, high pressure sensors are very important in ensuring smooth factory operations and preventing accidents.
Sino-Inst’s decades of experience in pressure measurement can recommend the most suitable equipment for measuring high pressures.
Our high pressure sensors support customization and can meet your needs. We have perfect after-sales service with a one-year warranty. We support international express delivery, and our products can reach you quickly.
