DESIGN AND CONSTRUCTION OF DIGITAL DISTANCE MEASURING INSTRUMENT
Abstract
In business, research, and engineering, measuring distance is crucial. Always measure the distance between two points. In most cases, measuring distance requires making physical touch with the object whose distance needs to be determined. However, this project explores measuring distance using a digital measuring device. A wheel with a circumference of roughly one meter is used to do this. Here, the distance is determined by multiplying the wheel’s complete circumference by the number of revolutions or cycles. In order to calculate the distance and display it on a seven section display, this device also uses a microprocessor. The digital measuring device has a 1000 meter maximum measurement range. The outcome of a practical distance measurement revealed that this digital distance measuring tool is quicker and simpler to use than a tape rule. However, because the fraction of revolutions is not identified, the mistake rate is larger. It is advised that a software be used to directly translate the number of rotations to the distance in order to increase the effectiveness of this device.
Introduction to Chapter One: Background to the Study, Version 1.0
Since humans first started dealing with their neighbors, measuring things has been necessary. Early cultures required to be able to measure in order to carry out many other jobs in addition to commerce. Other measurements, including the measuring of land and building materials, were significant when people began to settle down rather than live nomadic lifestyles (Crease, 2011). Our understanding of early measuring comes from historians and archaeologists, which has made us aware that while many of the early units of measurement shared similar origins, their actual values and methods of use varied from one nation to the next. The quality of measurements has improved throughout time as our societies grow more technologically oriented due to the requirement for higher measurement precision in numerous fields.
A measuring instrument is a tool used to quantify physical values. Measurement is the process of gathering and comparing physical quantities of actual objects and events in the physical sciences, quality control, and engineering (Kirch and Wilhelm, 2008). The process of measuring yields a number associating the subject under investigation and the referred unit of measurement, and established standard objects and occurrences are utilized as units (Kirch and Wilhelm, 2008). Measuring devices and formal test procedures that specify an instrument’s use are the way through which these numerical relationships are discovered. There are different levels of instrument error and measurement uncertainty with every measuring device (Creased, 2011).
Analog and digital measuring devices are the two main categories. The analog instruments use pointer movement to show the amount of the quantity. Since these instruments have specific markings on the scale, one must learn how to interpret them. They typically give values in whole numbers, although readings can also be obtained up to one or two decimal places. Given that there is always a chance of human error when reading, the readings taken to decimal places may not always be totally accurate. 2012 (B.H. engineers). The values of the quantity are displayed by digital measuring devices as easily readable numbers in digital format. Since these instruments directly display the information in numerical form, reading them requires no prior knowledge. The readings can be provided with one or more decimal places. These instruments are more accurate than analog measuring equipment since there is no human error involved in reading them. 2012 (B.H. Engineers)
Due to the high cost of this equipment, electronic measuring devices are still not commonly employed in the construction industry. Therefore, it is necessary to create designs for inexpensive measurement devices that are accurate. Distance measurement is now regarded as a time-consuming task in the construction industry or for indoor measuring activities since it requires at least two people to use a measuring tape to determine the distance between two points. Additionally, due to parallax and occasionally because of the existence of impediments like trees, linear measurements in the field are not always accurate.
Some items that use infrared light emitters and receivers to calculate an object’s distance have undergone improvements. Other devices feature systems based on lasers that are more accurate and precise. At the moment, distance measuring and obstruction detection have seen widespread use of the detection methods of laser, radar, and infrared ray. Laser and radar-based measurement instruments are expensive to construct and operate, hence they are not frequently used. With a range of only 4–30 cm, infrared sensors have an extremely limited measurement window (Crease, 2011). Therefore, a design that may improve quick and precise distance measurement at a reasonable price is required.
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