Mass Airflow Sensor Operates For Mass Gas Flow Across The Surface Of The Sensing Element

Prepare laptop computer to collect data through Logger Pro software. Open file “06B Enzyme (Pressure)” from Biology with Vernier folder in Logger Pro, and connect the gas pressure sensor to the computer using the USB port. Once Logger Pro is set up, connect the Gas Pressure Sensor to the plastic tubing through the valve on the sensor.

When recording the data one must be very cautious when matching the data with the correct temperature and make sure that the temperature is both accurate and precise. Also when collecting the data on the computer with gas pressure sensor you must wait make sure that it is fully configured to prevent from repeating the experiment, moreover, one should make sure that the rubber stopper is secured so no gas can escape and affect the data. Finally, more trials should be done to have more conclusive data.

When conducting this experiment we mixed 3 ml of of 3% H2O2 and 1 ml of room temperature deionized water. By adding these two mixtures into a beaker, we would then add one drop of catalase and cap it with the gas pressure sensor cork. By doing so, we were able to measure the amount of pressure being released

The purpose of this lab is to find the molar mass of mixed gases in a lighter, and to calculate the exact mixture of gases in the lighter. While collecting the volume of Butane gas in a lighter, the molar mass can also be determined. When attempting to find the molar mass, water displacement is the best method to use. This can be determined because the equal volumes of all gases contain equal number of particles, so long as they are measured at the same temperature and pressure. Ideal gas law is the chemistry involved with this experiment. The equations M=mRT/PV and PV=nRT can be seen throughout this experiment.

This is because of gas laws. In this lab two main gas laws were used. Dalton’s Gas Law was used to find the pressure (in ATM) on the inside of the eudiometer. Dalton’s law states that the pressure of more then one gas in a certain volume can be calculated simply by adding all the individual pressures together. The pressure on the inside of the eudiometer is different because some water vapor will enter the eudiometer. There for the amount of water vapor pressure( found via chart) and the pressure out in the room must be subtracted to find pleasure on the inside. The second formula used the most is the ideal gas law. This is the only gas law that has particles in the equation. The equation is (V)(P)=(n)(.0821)(T). (V)(P)=(n)(.0821)(T) Using this equation one can find any of the unknown if all other parts are filled in. In this lab the n (number of particles was missing. The number of hydrogen moles were found. Then the number of hydrogen moles were converted by using the formula mass of hydrogen to go from moles to

in the gas mixture was measured in a controlled way using a RH sensor and is shown in figure~\ref{fig:6_Water_vapor_quantity}. Throughout

Respiratory rate is very important in indicating the progression of illness and predicting the rapid decline in health conditions. Any negligence in monitoring respiration rate or diagnosing respiratory failure can lead to life threatening incidences within a short period of time. Hence nurses and doctors need to be more aware of the importance of an abnormal respiratory rate as a marker of serious illness. To better analyze and interpret the breathing rate, a solution for long-term monitoring is required. Currently used methods involve invasive techniques which are inconvenient for patients and thus not suitable for long term use. Hence in this project, a digital respiration rate meter is designed and developed for better monitoring of respiration rate. This meter is distinguished from other monitoring techniques in the way that it is customizable according to the age and can be used by any person irrespective of his gender and age. Also, it is a low cost device involving simple digital electronics

In this lab, I worked with three other partners: Alexis Koch, Scott Webb, and Nicholas Coffey. In the first portion of the lab, our goal was to discover the relationship between pressure and volume. We began the experiment by plugging in the Vernier computer interface and the Vernier Gas Pressure Sensor to the computer and started the Logger Pro software. We prepared the 20-milliliter gas syringe to be placed into the Vernier Gas Pressure Sensor by putting approximately 12 milliliters of air into it.

The Joule-Thomson apparatus (Leybold Didactic, Huerth, Germany) consisted of a glass cylinder with five outlets and a glass filter subdivision. One side of the division was connected to the helium or carbon dioxide gas pressure cylinder that was supplied in the laboratory, a pressure sensor, and a NiCr-Ni thermocouple, which measures the temperature inside that chamber. The other chamber contained outlets for another thermocouple and for the transferred gas. A temperature controlled water bath was used to set the system to the

For all of the tests conducted, the same apparatus was used, and the sample materials in the system were not altered between any of the tests. Seeing as the same apparatus was used for all tests, the inner chamber diameter of 2 inches remained constant for all tests. Additionally, the apparatus was purged with nitrogen immediately before the start of each trial to ensure that diffusion did not begin before the start of the timer. The information that was recorded for each test included the elapsed time, the weight of the condenser both before and after collecting the vapors, and the distance from the point of collection to the gas-liquid interface. In addition, the room temperature and pressure was recorded each day due to the role of these measurements in calculating the predicted values.

Precautions: to ensure high quality of the data presented, precautions regarding data collection and instrument calibration will be followed (pressure transducers, cobra probes, laser sensors, and accelerometers, etc.). All data will be routinely checked for precision, accuracy and variability. Experimental procedures will be checked for accuracy and quality, and instruments will be calibrated. CFD models will be validated with experimental results.

The sudden rise in combustion chamber pressure coincides with the location of SOC. The indicator of SOC was chosen to be

In part 3 of the experiment, the plots of Matlab were exported, the size of the plots was chosen to be: 3in x 3in, and the font was chosen to be 10 points, Times new roman style. In part4 on the experiment the linear regression was performed using Matlab’s basic fitting tools. after modifying the code to create two plots that represent the two types of force of sensors, the code is shown below:

A detailed study of secondary flows and separation in S- duct diffusers, their detection and control was done. The experimental investigations were also studied given in various references. The experiments were carried out with and without inflow distortion. The subject over which the flow is visualized is an S-Duct diffuser which is an essential feature of a combat aircraft inlet system. Due to space limitations, a short duct is required, resulting in high center-line curvatures. Due to centerline curvature, there are cross-stream pressure gradients giving rise to secondary flows. Control of secondary flows and separation has been explored by a number of investigators. Guo and Seddon investigated the swirl in an S-

To date many papers have reported the design and implementation of micro-sensors for airflow or air-velocity measurement using micromachining techniques [10-11]. Among these, Chen et al. reported the design and implementation of an array of hot-wires