APA ITU RAMBU UKUR DAN BAGAIMANA CARA MEMBACA RAMBU UKUR SECARA MUDAH BAGI PEMULA

Summary

This video explains the use of a measuring stake, a tool made of lightweight, durable aluminum, used for measuring vertical height differences and horizontal distances. The stake is marked with scales for accurate readings, and it is used in construction or surveying tasks to determine elevation differences or the distance between a point and the instrument. The video demonstrates how to set up and read the measuring stake, including how to calculate height differences and distances using a level instrument. Additionally, the video explains the importance of proper setup to ensure accurate measurements.

Takeaways

• 😀 The *rambu ukur* is a measurement rod made of lightweight aluminum with scales marked in centimeters, ranging from 3 meters to 7 meters.
• 😀 The tool is used to measure height differences and horizontal distances in surveying, particularly when used with a leveling instrument like a *pesawat sifat datar*.
• 😀 The *rambu ukur* has color-coded blocks (red, white, black) where each block represents 1 cm, and every 5 blocks represent 5 cm.
• 😀 The rod's height can be adjusted and locked by pulling and securing it, ensuring that it stays upright during measurements.
• 😀 The base of the *rambu ukur* must be placed directly on the benchmark or surface being measured, and it should remain straight for accurate readings.
• 😀 The *rambu ukur* is helpful in determining the elevation of surfaces like construction sites or existing ground levels.
• 😀 The rod comes in different lengths (e.g., 3 meters, 7 meters), with precise scales marked for easier reading of measurements.
• 😀 The reading process involves using a leveling instrument to determine the position of the top, middle, and bottom threads (benang atas, benang tengah, benang bawah) on the rod.
• 😀 Correcting measurements involves averaging the readings of the top and bottom threads, or using a formula to double-check the accuracy.
• 😀 Horizontal distance between the leveling instrument and the *rambu ukur* can be calculated using the formula: *Jarak = (benang atas - benang bawah) x 100*.
• 😀 To measure the difference in elevation, subtract the *benang tengah* reading from the tool's height to determine the height difference.

Q & A

What is a 'rambu ukur' and what is its main function?

A 'rambu ukur' is a measuring tool made of lightweight aluminum, used primarily for determining height differences and horizontal distances. It helps in accurate measurements with the aid of a leveling instrument, often a survey tool called 'pesawat sifat datar'.

What are the key features of a rambu ukur?

The rambu ukur is marked with a scale in centimeters, with different colored blocks (red, white, black) indicating units of measurement. Each block represents 1 cm, and larger blocks are used to indicate 5 cm. The rambu ukur is available in different sizes, ranging from 3 meters to 7 meters in length.

How does the scale of a rambu ukur work?

Each centimeter on the rambu ukur is marked by small color-coded blocks. The scale is designed to make it easier to read measurements when using a leveling instrument, where the small blocks represent single centimeters, and the larger blocks (shaped like the letter 'T') indicate 5 cm.

What is the correct way to set up the rambu ukur for measurements?

To use the rambu ukur, first set its base directly over a benchmark or point to be measured, such as a stake or flat surface. Ensure that the rambu ukur is vertical and not leaning, as this could affect the accuracy of the readings.

How is the rambu ukur typically used in construction?

In construction, the rambu ukur is commonly used to determine elevation differences during tasks such as pouring concrete or measuring the existing ground level for excavation. It can also be used to measure horizontal distances from the leveling instrument to the point of measurement.

What are the steps to read the scale on the rambu ukur?

To read the rambu ukur, identify the position of the leveling instrument’s crosshairs. The position of the top, middle, and bottom lines (or 'benang' in the transcript) gives the precise measurement. The reading can be calculated by noting the value corresponding to each of these lines.

How is the height difference (elevation) measured using the rambu ukur?

The height difference is determined by measuring the position of the leveling instrument’s crosshairs relative to the rambu ukur's scale. For example, the height of the instrument (like the 'pesawat' or surveying tool) minus the value read at the middle crosshair ('benang tengah') gives the elevation difference.

What does the term 'benang' mean in the context of using a rambu ukur?

In the context of a rambu ukur, 'benang' refers to the lines seen in the leveling instrument. These lines represent different elevation markers: 'benang atas' (top), 'benang tengah' (middle), and 'benang bawah' (bottom), which are used to calculate the elevation or height difference.

How do you correct the reading if the 'benang tengah' seems off?

To correct the reading, you can calculate the 'benang tengah' by averaging the values of the top ('benang atas') and bottom ('benang bawah') lines. Alternatively, you can double the value of 'benang tengah' and check if it matches the sum of the top and bottom lines.

What formula is used to calculate the horizontal distance between the surveying tool and the rambu ukur?

The horizontal distance can be calculated using the formula: Distance = (Benang atas - Benang bawah) × 100. This formula helps in determining the gap between the survey instrument and the point where the rambu ukur is placed.