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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.
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Frequently asked questions about Miniature pressure sensors
Answers to the most important technical questions
Are miniature differential pressure sensors available?
Yes. A compact example is the Sensorade mp2.40 differential pressure transducer, which is particularly suitable for measuring differential pressure in air and for aerodynamics applications.
Because a differential pressure sensor requires two pressure connections, it is generally larger than a single miniature pressure sensor. For applications with very limited installation space, it is therefore important to determine whether a compact differential pressure sensor provides sufficient space savings or whether a custom solution using miniature pressure sensors is more appropriate.
Althen can help select the most suitable differential pressure sensor or compact pressure measurement solution for the available installation space and measurement requirements.
What temperature ranges are available for miniature pressure sensors?
Althen offers miniature pressure sensors for a range of operating temperatures, from standard industrial applications to high-temperature pressure measurement in demanding environments. The exact temperature capability depends on the sensor model, output signal, materials, seals, cable and installation conditions.
Examples include the XPR46 miniature pressure sensor, which is specified for operating temperatures from -40 °C to +120 °C, and the EPRB-1, which can be used at temperatures up to +150 °C. Ultra-miniature pressure sensors such as the MP-1.55 are available, depending on the version, for temperatures up to +100 °C or +185 °C. For particularly demanding high-temperature applications, unamplified versions of the XPC10 high-temperature pressure transducer are specified for operating temperatures from -40 °C to +220 °C.
When selecting a miniature pressure sensor, the maximum operating temperature is not the only factor to consider. The process medium, pressure range, compensated temperature range, electrical connection and installation conditions should also be taken into account. Althen can help select a miniature or high-temperature pressure sensor that matches the temperature and installation requirements of the application.
What bandwidth and resonance frequency are available for miniature pressure sensors?
The dynamic performance of miniature pressure sensors and pressure transducers depends on the model and may be specified as bandwidth, resonance frequency or usable frequency range. Many miniature pressure sensors are suitable for fast pressure changes and dynamic pressure measurements.
Examples from the Althen portfolio include the EPRB-1, with a bandwidth of 400 Hz (-3 dB) for dynamic pressure measurements in test benches, vehicle applications and hydraulic systems. Depending on the pressure range, the XPC10 has resonance frequencies from 34 kHz to 250 kHz. Its datasheet specifies a usable frequency of approximately 20% of the resonance frequency, while the amplified A1 version has a bandwidth of 600 Hz. The MP-1.55 ultra-miniature pressure sensor is designed for particularly fast measurements and has a resonance frequency of up to 2.7 MHz. The XPR46 is designed for high-bandwidth pressure measurement and high-frequency applications.
The usable frequency in the actual application also depends on the sensor type, pressure range, output signal, amplifier, installation conditions and connected measurement system. Althen can help select a miniature or dynamic pressure sensor with the appropriate frequency response for the measurement task.