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Pressure sensors
We offer various standard sensors in multiple variations and qualities for all applications.
Consult us and we will find the perfect solutions for your task with you.
Pressure sensors – our core expertise, your advantages
Pressure sensors are used across a wide range of industries and applications, enabling precise measurement and monitoring of pressure conditions. They convert the physical quantity of pressure into an electrical signal. Since the first developments in the 1950s, pressure sensors have evolved from simple silicon components into highly precise MEMS systems – a progress that All Sensors has actively shaped for decades.
There are different types of pressure sensors, each distinguished by the way pressure is measured. The choice of the right sensor depends on the specific application area and the required accuracy. At All Sensors, you will find a broad selection of pressure sensors that can also be tailored to your individual requirements. What they all have in common is high quality, reliability and reproducibility.
Your benefits with pressure sensors from All Sensors
- Highest accuracy at low pressures, reliable MEMS pressure sensors
- Decades of experience in the development and production of pressure sensors
- Innovative CoBeam²™ technology and dual-die technology
- Optimised solutions for mobile applications with low power consumption, resistant to position and acceleration changes
- Standard solutions based on modular product platforms
- Tailor-made product adaptations
- Individual system solutions for optimum integration of measurement technology in demanding applications
Modern pressure sensors also stand out due to their miniaturisation, robustness in harsh environments, long-term stability and low energy consumption – key factors for mobile and medical applications. Thanks to decades of specialisation in the low-pressure range and innovative technologies such as CoBeam²™, All Sensors today ranks among the leading specialists for customised sensor technology.
Our range of pressure sensors
Pressure sensors are used in a wide variety of industries – from industrial processes and medical technology to aerospace. In industrial applications they monitor filters, pumps and pipelines; in medical technology they ensure the reliable operation of life-saving equipment such as ventilators or infusion pumps. In the automotive and aerospace sectors, they guarantee safety, efficiency and performance even under extreme conditions.
- Absolute pressure sensor: Used in industrial systems to measure and monitor system pressure. They are deployed in environments where ambient pressure has no influence on the system, such as closed compressed air systems. They are also suitable for pressure measurement in gas cylinders and pneumatic systems like compressors.
- Relative pressure sensor: These instruments measure the pressure of a gas or liquid relative to atmospheric pressure. They are ideal for monitoring and controlling pressure conditions in industrial processes, such as in the oil and gas industry, chemical industry, power generation and water treatment.
- Differential pressure sensor: These sensors measure the pressure difference between two separate points within a system. They detect even the smallest variations with high accuracy and convert them into an electrical signal for further processing by other devices or systems.
With the rise of semiconductor technology in the 1970s, pressure sensors found their way into an increasing number of industries. Bulky mechanical systems in the automotive and aerospace sectors were replaced by compact silicon sensors – setting new standards in precision and reliability.
The different pressure measurement techniques
Choosing the right pressure sensor is not only about selecting the right type, but also about using the appropriate measurement technology. Naturally, you will find all options in our portfolio.
Piezoresistive pressure sensors
These are among the most widely used pressure sensors thanks to their relatively simple design and excellent linearity between applied pressure and output signal. A piezoresistive pressure sensors consists of a silicon-based Wheatstone bridge as the measuring element. When pressure is applied, the element expands slightly and its electrical resistance changes – this is known as the piezoresistive effect.
Piezoelectric pressure sensors
These sensors rely on crystals such as quartz. When pressure is applied, they generate a measurable, proportional electrical charge – the so-called piezoelectric effect. Piezoelectric pressure sensors are especially suitable for dynamic pressure measurements, small pressure fluctuations under high static pressure, and quasi-static measurements at very high or very low temperatures.
Capacitive pressure sensors
Capacitive pressure sensor operate on a different principle. They are essentially plate capacitors consisting of a membrane and a substrate, acting as hermetically sealed anode and cathode. Pressure on the membrane reduces the distance between the plates, resulting in a measurable change in capacitance directly corresponding to the applied pressure.
Despite the different principles, all technologies share a common structure: at their core is a microstructured silicon chip. A thin membrane deforms under pressure, while piezoresistive or capacitive elements change their electrical properties. Integrated signal conditioning ensures that raw signals are reliably processed and output – whether in analogue or digital form.
Digital pressure sensors vs. analogue pressure sensors
A digital pressure sensor measures pressure and converts the measurement into a digital format. In this process, analogue data are transformed into discrete digital values, often represented in binary code (0 and 1).
In contrast, an analogue pressure sensor directly measures pressure and provides a continuous output signal proportional to the measured value, without discretisation or digital conversion.
The main advantage of digital pressure sensors lies in their easy adaptability to different tasks or customer-specific requirements. Thanks to modern MEMS miniaturisation, both analogue and digital outputs can now be flexibly integrated into a wide range of control systems.
The ideal pressure sensor for your project – let us advise you
Do you need a digital differential pressure sensor using the piezoresistive effect? Or would an analogue relative pressure sensor operating on the capacitive principle be the better choice? Whatever your requirements, All Sensors has the right solution. Our experts are happy to advise you and adapt the sensors to your specific needs. Contact us today!
Looking ahead, pressure sensors will continue to become smaller, more energy-efficient and smarter. Future generations will offer integrated data processing, self-calibration and wireless communication – making them a key technology for the Internet of Things (IoT) as well as the next generation of medical devices. All Sensors is actively shaping these developments and ensures that your project already benefits from the technology of tomorrow.
High-precision sensors
Highest precision for lowest pressures, reliable MEMS pressure sensors.
Innovative technologies
Innovative CoBeam²™ technology and dual die technology.
Customised system solutions
Individual system solutions for perfect integration of measurement technology in sophisticated applications.
Comprehensive product range
Standard solutions on a modular product platform.
