Compare our sensors
Not sure which sensor is the right fit? Select up to three sensors to view technical comparison.
Compact and precise miniature pressure sensors
Miniature pressure Sensors are expertly engineered to provide precise pressure measurements in applications where space is at a premium. These compact sensors, also known as mini pressure transducers, miniature pressure transmitters or small pressure transducers, deliver accurate and reliable performance without sacrificing quality, making them ideal for use in all sorts of applications where size constraints are critical. Despite their small form factor, our miniature pressure sensors are designed to handle demanding environments, offering a range of measurement capabilities to suit various industrial and commercial needs.
Versatile solutions for space-constrained applications
Our Miniature pressure sensors are built to meet the unique challenges of space-constrained applications while maintaining high standards of accuracy and durability. These sensors are available in various configurations, including piezoelectric, capacitive, and resistive technologies, to ensure compatibility with different pressure measurement requirements. Whether you need sensors for low-pressure monitoring in delicate systems or robust solutions for high-pressure environments, Althen’s miniature pressure sensors provide a reliable and efficient option, ensuring seamless integration into your designs.
Some things to consider when selecting a miniature pressure sensor
- Determine the pressure range: Select a sensor that can accurately measure the pressure range relevant to your application. Ensure it can handle both the minimum and maximum pressures expected in your system.
- Assess accuracy requirements: Consider the required level of accuracy, especially in critical applications like medical devices or aerospace. Ensure this sensor meets your precision needs.
- Evaluate space constraints: Ensure the miniature pressure sensor's dimensions and shape fit within the available space in your application. Miniature sensors are designed for tight spaces, so consider the installation environment carefully.
- Connector and mounting options: Check the sensor's or transducer's connection type and mounting options to ensure they align with your design needs.
- Temperature range: Ensure the transducer can operate effectively within the temperature range of your application, especially in environments with extreme temperatures.
- Material compatibility: Choose a pressure sensor made from materials that are compatible with the fluids or gases it will be measuring, especially if they are corrosive or reactive.
- Analog vs. digital output: Determine whether you need an analog or digital output signal based on your system's requirements. Analog signals might be easier to process in some systems, while digital signals offer more noise resistance and easier integration with modern control systems.
- Signal conditioning: Consider whether additional signal conditioning is required, such as amplification or filtering, and whether the sensor provides this functionality.
- Assess power needs: In battery-powered or portable applications, consider the sensor's power consumption. Low-power sensors are crucial for ensuring long battery life.
Naturally, you can always contact our team of technical experts, who always want to help you find the right miniature pressure sensor solution for your project or application.
Can we help you with your pressure sensor project?
Please feel free to contact us for questions and more information.
Frequently asked questions about Miniature pressure sensors
Answers to the most important technical questions
Are there miniature differential pressure transducers?
An example of a very small differential pressure transducer is the mp2.40 from Sensorade. It is particularly suitable for air as the medium and for aerodynamics applications. However, differential pressure transducers require two pressure connections by design and are therefore usually larger than a single miniature pressure transducer.
For applications with very limited installation space, it should therefore be checked whether a compact differential pressure transducer is sufficient or whether a customer-specific solution with miniature pressure sensors is required. Althen supports you in selecting the right design for your measurement task.
For which temperatures are miniature pressure transducers available?
Miniature pressure transducers from Althen are available for different temperature ranges depending on the model, from standard applications to high-temperature measurements in harsh environments. The exact temperature resistance depends on the sensor type, output signal, material, seal, cable and installation situation.
Examples from the Althen portfolio: The XPR46 miniature pressure sensor is designed for operating temperatures from -40 °C to +120 °C. The EPRB-1 can be used up to +150 °C. Ultra-miniature pressure sensors such as the MP-1.55 are available, depending on the version, for up to +100 °C or up to +185 °C. For particularly high temperatures, the XPC10 is suitable, with unamplified versions specified for -40 °C to +220 °C.
When selecting a sensor, engineers should consider not only the maximum temperature, but also the medium, pressure range, compensated temperature range and electrical connection type. Althen supports you in selecting a miniature pressure transducer that matches the temperature load and installation conditions of your application.
What bandwidth and natural frequency do miniature pressure transducers achieve?
The dynamic performance of miniature pressure transducers depends on the model and is specified either as bandwidth, resonance frequency or usable frequency range. In general, many miniature pressure transducers from Althen are also suitable for fast pressure changes and dynamic measurement tasks.
Examples from the Althen portfolio: The EPRB-1 has a bandwidth of 400 Hz (-3 dB), making it suitable for dynamic pressure measurements in test benches, vehicle applications or hydraulic systems. The XPC10 achieves resonance frequencies from 34 kHz to 250 kHz, depending on the pressure range; the datasheet specifies the usable frequency as approximately 20% of the resonance frequency, while the amplified A1 version has a bandwidth of 600 Hz. The MP-1.55 is designed for particularly fast measurements and has a resonance frequency of up to 2.7 MHz. The XPR46 is described as a high-bandwidth sensor for high-frequency applications.
The frequency actually achieved in the application depends on the sensor type, pressure range, output signal, amplifier, installation situation and the connected measurement system. Althen supports you in selecting a miniature pressure transducer with the right dynamic performance for your measurement task.