So This Is Christmas

Merry Christmas is such an infectious feeling I like to feel that way all year around.

So if you are visiting just before Christmas, just after Christmas or even here on Christmas day I am sure you will find something of interest for you and in the spirit of Christmas.

It may be said that Christmas is no longer a celebration but this must be spoken by people that have never had trouble closing their eyes on Christmas Eve in an expectation of what maybe left for them on the carpet under the tree.

I continue to look forward to the surprise on my Grandchild's faces to this day at Christmas events.

Merry Christmas - Merry Christmas - Merry Christmas

Saturday, March 26, 2016

Facts To Know About A Slope Indicator

By Barbara Burns


There are many applications in real life situations that require the measurement of the slope, elevation, or depression of an object in respect to gravity. The instrument that is used for this purpose is referred to as a slope indicator. Other names used to refer to the instrument are level gauge, declinometer, gradient meter, slope alert, and roll indicator among several other names.

Declinometers have the ability to take both negative and positive slopes of the objects they are measuring. With that in mind, it means that both measurements when an observer is looking downwards and upwards on an object can be taken. Units of representation of measurements used are topo, percentages, and degrees. Modern inclinometers are an evolution of astrolabes, an old version of declinometer that was used in the Renaissance period.

The accuracy level in modern-day declinometers is very high. Various factors determine accuracy in these devices. Some of the determining factors include technology incorporated and the angle range. Output resolutions of over 0.0001 can be reached by those that incorporate modern technology. On the other hand, typical accuracy falls between 0.01 and positive or negative 2 degrees. Besides technology, accuracy is also dependent on temperature, repeatability, sensor linearity, sensitivity, and hysteresis.

Different technologies are incorporated in modern devices. Most commonly, these devices work by generating an artificial horizon with respect to which angular tilt is measured. Devices that use this technology are most commonly incorporated in automobile security systems, specialty switches, aircraft flight controls, and cameras. When one is in search for tilt sensors, the two fundamental factors to consider are the number of axes and the tilt angle range.

Modern life finds many uses for inclinometers. These devices are valuable in the monitoring of subsurface movements and/or deformations. In this application, they are utilized in the detection of motion to establish if motion is accelerating, constant, or responding to countermeasures. Also, deformations that are within limits can be told through the use of the instrument. This assists in ensuring that subsurface motion does not affect adjacent structures.

After an area has been impounded, the stability of structures such as dam abutments, dams, and upstream slopes must be verified. This verification is done by inclinometers. Settlement profiles of structures such as embankments and foundations can also be monitored using horizontal inclinometers. Therefore, from the various applications of inclinometers, it is obvious that it is a vital instrument in construction and related industries.

An inclinometer is usually composed of two components, that is, the measurement system and the casing. The casing component enables access to subsurface measurements. It contains grooves within it that control the orientation of the sensor of the device and offer the whole system with a uniform surface from which measurement can be taken.

Installation of inclinometer casings can be done on various platforms. Some of the platforms and methods include burying in trenches, attaching to structures, casting into concrete, embedding in fill, and fitting inside boreholes. Casing diameters, coupling style, and groove shape are the three major factors to be considered when buying this device.




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