High resolution pressure transducers with an analog voltage output for detecting very small changes in pressure or measuring pressure to a high precision.
Our high-resolution pressure transducers are engineered to provide exceptional precision and sensitivity, detecting the most subtle pressure variations. Utilizing a 16-bit digital amplifier and an analog voltage output, these transducers are optimized for integration with high-performance data acquisition systems, making them ideal for demanding industrial and research applications where precise pressure measurement is critical.
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Find out more about High Resolution Pressure Transducers to determine which product options and capabilities will best meet your application requirements.
High-resolution pressure transducers are specifically designed to detect minute pressure variations or measure pressure with exceptional precision, far exceeding the capabilities of standard transducers. These transducers are critical in applications where even subtle pressure fluctuations have significant implications.
The key to achieving this high resolution lies in the integration of advanced digital signal processing, typically employing a 16-bit digital amplifier. This amplifier plays a crucial role in maximizing the effective resolution. It takes the analog signal from the pressure-sensing element and conditions it before digitization.
This 16-bit resolution means the output signal can represent 65,536 discrete levels (2^16). This fine granularity allows the transducer to discern extremely small changes in pressure that would be lost with lower-resolution devices. The amplified signal is then perfectly prepared for interface with the analog-to-digital converters (ADCs) commonly found in precision data acquisition systems.
The high bit depth amplifier is paired with precise, and low noise front end analog signal conditioning to ensure minimal signal degradation, before conversion to a digital value for processing.
These transducers are purposely engineered to complement high-performance data acquisition cards and other instrumentation incorporating high-resolution ADCs. The synergy between the transducer’s high-resolution output and the data acquisition system’s capabilities ensures that the full potential of the sensor is realized.
Unlike general-purpose pressure transducers, these units are often optimized for specific pressure ranges and operating conditions. This focused design allows for tighter tolerances and improved performance characteristics within the intended application. This can be seen during in-process checks for leaks, where very small pressure deviations would be seen when compared to a control.
Consider a scenario in precision manufacturing, such as semiconductor fabrication, where maintaining an ultra-stable pressure environment is paramount. Or, when used in an end of production line testing rig that is proving the functionality of a high precision micro-pump, these types of transducers play a critical part of maintaining quality standards. A high-resolution pressure transducer would be essential for monitoring and controlling the pressure within a process chamber with the required degree of accuracy.
Another application lies in research laboratories, specifically in experiments involving fluid dynamics or microfluidics. In these settings, researchers might need to measure incredibly subtle pressure changes to understand the behavior of fluids at a microscopic level.
These transducers often incorporate advanced temperature compensation techniques to minimize the impact of temperature variations on measurement accuracy. This is particularly important in industrial environments where temperature fluctuations can be significant.
The voltage output provided is crucial to integrating the transducer signal to existing instrumentation, and the sensitivity of the amplified output is tuned to provide a good signal to noise ratio, while optimising the available input signal range to the external instrumentation.
Product Help
What is the resolution of a pressure transducer
How do I determine the resolution of a transducer, since I am looking for a pressure transducer that is granular enough to read one pascal change or better? The measured change in pressure has to be below 0.00004 psi at 20 psi.
Most pressure transducer data sheets don’t speak about the resolution of the output, and it is not something you can work out without requesting it from the manufacturer.
Pressure transducers without signal conditioning such as the millivolt strain gauge output pressure transducers are considered to have infinite resolution theoretically. However because the noise level becomes prominent at high resolution, this normally limits the practical measurement resolution of a sensor. The level of noise will depend on the sensor technology. For example lower output sensitivity thick film or bonded foil strain gauges pressure transducers have low signal to noise ratios compared to higher output sensitivity semiconductor strain gauge pressure transducers, and both are used extensively in the build of pressure transducers.
0.00004 psi of a 20 psi range is 0.0002 % FS resolution, for which you would need around 23 bit resolution output signal conditioning, and that is much greater than anything typically available.
If they have 23 bit or better data acquisition then you could try a millivolt output semiconductor strain gauge technology which normally has very high signal/noise ratio in theory.