Guidance Of Pressure Compressions

How are the photographs taken with a 3D microscope different than those taken with a regular camera? How are they similar?

As previously mentioned, upon an applied strain to the silicon elastomer sensor, there is a reduction in the channel geometry cross-sectional area and subsequent increase in the length of the channels. These proportional changes in channel dimensions provide a consistent and measurable change in the resistance of the sensor vs. the amount of strain applied as represented by the following relationship: ΔR = ρ [((L + ΔL)/(w + Δ w)(h + Δ h)) – (L/w h)] where ΔR is the change in resistance, ρ is electrical resistivity, L, w, and h are the length, width, and height of the channels, and ΔL, Δ w, and Δ h are the changes in length, width, and height (Menguc, 2014). Because measuring the actual changes in height and width of the channels is unrealistic, Poisson’s ratio is utilized in order to relate the relative changes in length of the channels with that of the width and height. The ratio for EcoFlex 0030 is ν = 0.499. This ratio for change in length relating to subsequent width and height changes is defined by the strain, EL = ΔL/L, such that Δ w = -ν EL w and Δ h = -ν EL h, which simplifies the aforementioned equation down to ΔR = (ρ EL L (8 - EL))/(w h (2 - EL)^2) (Menguc, 2014).

In accession to the binary images, the proposed method may be tested on discrete color images also. These type of

Therefore, a theoretical uncertainty value that accommodates both uncertainties of the measurement and the equipment is calculated. The theoretical uncertainty calculation is primarily based on the propagation of error formula. The theoretical uncertainty calculation is as follows.

According to our percent error computations, the graphical method is more accurate than the experimental method. For instead, the percent difference between experimental to

Grzegorz Krajewski and Adam Wo´zniak proposed a method to determine dynamic error of CMM by scanning simple shape master artifact. The artifact is assembly of two flat plates with provision to adjust the angle between the plates. The experiment is carried out on ZEISS ACCURA Bridge CMM with VAST XXT (Passive) scanning probe and VAST Gold (Active) scanning probe. The dynamic error is determined by scanning the plate parallel to the scan axis first then the plate inclined at some angle. The sudden change in direction causes acceleration which leads to dynamic errors. At high scanning speed, the dynamic error is more in passive probe than active probe. The proposed method can also use for optimization of measurement process.

The first run with a 50 gram added mass and stretch of 50mm produced consistent results. The accuracy tended to decrease with increasing stretch distance.

1.) Gather and position materials in a flat area a few meters long. Use tape to label the starting point of

There were two methods used in this exercise, including plot measurement and point sampling. Each followed the following procedure:

In this experiment, we used a Syscal Kid resistivity meter, cord clips, four electrodes, battery cables, two hammers, one yellow plastic survey peg, two fiberglass long tape, a long white rope (Figure 1 and 2) and analysis was done on laptop using CD. First, we put a long white rope and two fiberglass long tape in the ground. Measuring tape gave us the total distance of 18.4 m. Then, we set up a yellow plastic survey peg in middle of the ground. Second, in conducting an expanding-spread Wenner survey (see Figure 4), we move all electrodes along a straight line after every reading. So, the spacing between electrodes remains equal and takes on certain preselected values.

Still, several software companies have developed software that allows estimators to import a drawing, set a scale, and begin measurements and takeoffs digitally. This works great in the office, but does not have a good practical application in the field. In fact, we have joked that “you can’t set your monitor on the hood of a truck.”

projection of x-rays plays a major role in how the image is going to look like. X-rays with

Using the tools on logger pro, the force sensors were calibrated. A 20-cm string was attached to the hooks connected to the end of each sensor. After being attached, logger pro started collecting the data and the two sensors were pulled apart by one person. Logger Pro automatically provided a graph with the data provided with the sensors. This part was repeated with an elastic band that was attached to the two ends of the sensors. The graphs provided were saved and was used to analyze the force pairs.

Finally, the beam strikes a fluorescent screen. The magnified image of the object can be seen on the screen of a television-like monitor. The images formed by a transmission electron microscope are black and white like an X-ray picture. Computers can be used to translate the image information into a three-dimensional colored image.

The resolution power of an eye is about 0.2 mm. However, utilizing a microscope magnify this resolution power. The modern light microscope has a magnifying power of 1000x. The wavelength of the light used can alter the resolving power of the microscope. Visible light as compared to an electronic beam can focus the minute details of the surface. The signals that are derived from electron ample interaction displays information about the physico chemical structure, crystalline morphology and orientation of the arrays of molecules that make up the sample. A dimensional image is generated showing spatial changes in properties (1) .