Pressure Sensor Measurement
Pressure Sensor Measurement - Related Videos
09:04
Epidural Intracranial Pressure Measurement in Rats Using a Fiber-optic Pressure Transducer
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Cited by 30 •
2012
A novel technique to record the pressures within the skull is described. The minimally invasive method uses a fibre-optic pressure sensing system to accurately measure intracranial pressure (ICP) in anaesthetized rats without causing significant brain trauma. The technique may be used in a wide range of experimental models.
08:54
Measuring Blood Pressure in Mice using Volume Pressure Recording, a Tail-cuff Method
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Cited by 175 •
2009
The CODA 8-Channel High Throughput Non-Invasive Blood Pressure system measures the blood pressure in up to 8 mice or rats simultaneously. This tail-cuff system uses Volume Pressure Recording (VPR) to measure the blood pressure by determining the tail blood volume.
09:31
Noninvasive Blood Pressure Measurement Techniques
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2023
Source: Hamna J. Qureshi and Craig J. Goergen, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana Here we will highlight the key similarities and differences of noninvasive blood pressure measurement techniques between humans and rodents and examine the engineering principles that govern blood pressure. The principles that govern current cuff technology to acquire systolic and diastolic pressures will also be discussed. Commercially available cuffs that connect...
09:49
Measurement of the Pressure-volume Curve in Mouse Lungs
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Cited by 47 •
2015
Here we present a protocol to simply and reliably measure the lung pressure-volume curve in mice, showing that it is sufficiently sensitive to detect phenotypic parenchymal changes in two common lung pathologies, pulmonary fibrosis and emphysema. This metric provides a means to quantify the lung’s structural changes with developing pathology.
03:34
Spatial Measurement of Tumor Interstitial Fluid Pressure: A Method to Measure the Interstitial Fluid Pressure
0 Views •
2023
This video describes a technique of measuring the interstitial fluid pressure within a tumor by perfusion imaging using an image-guided robotic system. Measurements are compared to the intra-tumoral accumulation of liposomes, within a solid tumor.
FAQs
Pressure causes a flexible diaphragm to deflect, and that deformation changes an electrical property within the sensor. Depending on the design, the changing property may be resistance or capacitance. The resulting signal provides a measurable basis for determining pressure after calibration, allowing the same mechanical response to be interpreted in pressure units.
Calibration establishes the relationship between the sensor’s electrical signal and pressure units. Without that relationship, a change in resistance or capacitance cannot be reliably interpreted as a specific pressure. Calibrated measurements therefore support meaningful comparisons between readings and help researchers monitor reaction conditions, sealed vessels, flow systems, and other chemical processes.
Changes in pressure can provide information about gas reactions, vapor pressure, flow behavior, and phase changes. In a sealed vessel, pressure data may indicate that the chemical system is changing as a reaction proceeds or as volatile material behaves differently. This makes pressure a useful observable for characterizing processes involving gases, vapors, or high pressures.
A typical workflow places the sensor where gas or liquid pressure must be monitored, records the sensor’s electrical response, and uses calibration to convert that response into pressure units. The resulting measurements can then be followed over time or compared with operating conditions. This approach supports monitoring rather than relying only on indirect observations of the system.
Researchers may monitor a sealed vessel when gas reactions, volatile materials, or vapor pressure are important to the experiment. Recorded pressure can help reveal reaction progress and show whether operating conditions remain within the intended range. Because the vessel is closed, pressure measurement provides a direct way to follow changes associated with gases and phase behavior.
Pressure readings help maintain desired operating conditions in systems that contain gases, liquids, volatile materials, or high pressures. Monitoring can reveal changes that require process control and can identify departures from the intended state of a sealed vessel or flow system. The measurements therefore contribute both to process management and to safer handling of pressure-sensitive chemical operations.