Pressure Control System
Pressure Control System - Related Videos
07:55
Pressure Controlled Ventilation to Induce Acute Lung Injury in Mice
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Cited by 7 •
2011
A murine model for ventilator induced lung injury is an important tool to study an acute lung injury in vivo. Here, we report an easy applicable in situ model for acute lung injury using high-pressure mechanical ventilation to induce acute failure of the lung.
07:26
Synthesis and Microdiffraction at Extreme Pressures and Temperatures
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Cited by 5 •
2013
The laser heated diamond anvil cell combined with synchrotron micro-diffraction techniques allows researchers to explore the nature and properties of new phases of matter at extreme pressure and temperature (PT) conditions. Heterogeneous samples can be characterized in situ under high pressure by 2D mapping and combined powder, single-crystal and multigrain diffraction approaches.
10:28
Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique
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Cited by 1 •
2023
A simple and cost-efficient fabrication method based on the solvent evaporation technique is presented to optimize the performance of a soft capacitive pressure sensor, which is enabled by porosity control in the dielectric layer using different mass ratios of the molding PDMS/toluene solution.
11:35
Constant Pressure-controlled Extrusion Method for the Preparation of Nano-sized Lipid Vesicles
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Cited by 29 •
2012
This protocol describes an extrusion method for preparing lipid vesicles of sub-micron sizes with a high degree of homogeneity. This method uses a pressure-controlled system with controlled nitrogen flow rates for liposome preparation. The lipid preparation1,2, liposome extrusion, and size characterization will be presented herein.
02:34
Vapor Pressure
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2020
When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules move randomly about, they will occasionally collide with the surface of the condensed phase, and in some cases, these collisions will result in the molecules re-entering the condensed phase. The change from the gas phase to the liquid is called condensation. When the rate of condensation becomes equal to the rate of vaporization, neither the amount of the liquid nor the amount of the vapor...
FAQs
A Pressure Control System uses a feedback sequence: a pressure sensor measures the current condition, the controller compares that measurement with a defined setpoint, and an actuator such as a valve, pump, or gas-flow control changes the system. This measurement-and-correction cycle reduces deviations from the target, supporting stable experimental conditions rather than relying on a single manual adjustment.
Pressure deviations trigger the controller’s corrective function: it uses the comparison between measured pressure and the setpoint to adjust an available control element. Depending on the equipment, that element may be a valve, pump, or gas-flow pathway. This coordinated response helps preserve the intended condition when the system drifts, which is important for experiments requiring reproducible pressure exposure.
Stable pressure is important because biological samples and experimental platforms can be sensitive to mechanical conditions. Regulation helps protect sensitive samples and equipment while keeping the environment consistent across experiments. That consistency allows investigators to examine pressure-dependent biological processes more reliably, because the pressure conditions remain controlled rather than changing unpredictably during the study.
To configure a Pressure Control System, an experimenter defines the desired pressure setpoint, uses a sensor to measure the relevant environment, and connects the feedback controller to a corrective device. The controller compares measurements with the setpoint and directs a valve, pump, or gas-flow adjustment. Monitoring the measured pressure verifies that the intended condition is maintained.
Biological applications include bioreactors, perfusion platforms, microfluidic devices, and experiments examining cellular or tissue responses to mechanical forces. In these settings, controlled pressure can help maintain process conditions, regulate the environment experienced by samples, or create reproducible pressure-related experimental conditions. Its role varies with the platform and the biological question being investigated.
Measurements from the system can show whether the experimental environment remains near its defined target and whether pressure regulation is functioning as intended. The main value is not simply a pressure reading: controlled conditions improve reproducibility and support consistent investigation of pressure-dependent biological processes. These outcomes help researchers interpret cellular or tissue responses within a more stable experimental framework.