4 Types of Measuring Tapes Used in Surveying

Posted on November 10, at 4:21 pm by /

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Surveying involves gathering measurements and dimensions of a physical area, a critical process for various applications. These range from defining property boundaries for construction to conducting geographic studies. A plethora of methods exists for data collection, each supported by specific tools. Here, we discuss four popular types of measuring tapes used in surveying and their specific applications.

1. Heavy-Duty Steel

Steel measuring tapes are prevalent among surveyors. They are versatile tools utilized in different tasks such as construction, woodworking, chain standardization, and manufacturing. The steel tape's robust material ensures high durability and reliable structural readings. In surveying, these tapes are essential for taking measurements over flat, level terrain, where precision and distance coverage are paramount.

2. Vinyl

Vinyl measuring tapes offer a flexible alternative to steel tapes. They are generally lighter, which facilitates ease of handling and transport. Surveyors often employ vinyl tapes for offset and topographical measurements, particularly on uneven surfaces that don't require highly precise results.

3. Precise Invar

Invar tape measures are celebrated for their accuracy. Composed of a unique alloy made of steel and nickel, these tapes maintain their shape while adapting to curved or sloped surfaces. Their composite structure withstands the elements, minimizing expansion and contraction due to temperature shifts, while also resisting water damage. Cleaning is straightforward, making them practical for muddy environments.

4. Synthetic Tape

Synthetic tapes blend characteristics from various types, mirroring both steel and invar tapes. Made from fiberglass coated in vinyl, they are especially suited for outdoor conditions. Their flexibility and durability shine in the presence of conductive objects such as electric fences or railway tracks, making them ideal for challenging terrains.

These four measuring tape types each offer distinct advantages for surveying tasks. They facilitate accuracy in measurement regardless of the environmental conditions encountered. If you want to explore a wide range of tape options, Perfect Measuring Tape Co. features a selection that includes tapes specifically designed for surveying. Discover the right measurement tool tailored to your needs.

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Tapes are essential tools in surveying for capturing linear measurements. Offered in various lengths and made from multiple materials, here are the five most common types.

Types of Tapes Used in Surveying

The five types of tapes typically utilized for linear measurements in surveying include:

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1. Linen Tape
2. Woven Metallic Tape
3. Steel Tape
4. Synthetic Tape
5. Invar Tape

1. Linen Tape

Linen tape, also referred to as cloth tape, comprises a closely woven varnished linen strip typically 12 to 16 mm wide. It comes in various lengths such as 10m, 20m, 30m, and 50m. Both ends feature metallic handles, and it is often housed in a leather or metal case.

Linen tapes are lightweight and user-friendly. However, they may shrink when wet and elongate under pulling stress, making them unsuitable for precise measurement requirements. Instead, they are better utilized for offset measurements and general purposes.

2. Woven Metallic Tape

The metallic woven tape enhances the traditional linen tape using brass or copper wires for reinforcement, resulting in a more robust alternative. A brass ring at the end is included in the total length.

These tapes are available in lengths of 2m, 10m, 15m, 20m, 30m, and 50m and are commonly employed in surveys such as topographic work, where minor inaccuracies are tolerable.

3. Steel Tape

Steel tapes consist of either steel or stainless steel strips ranging from 6mm to 16mm in width. They are offered in various lengths including 1m, 5m, 8m, 10m, 20m, 30m, and 50m, with metrics graduated directly on the steel.

Steel tapes usually come with a metal case featuring an automatic winding mechanism. Users can pull out the tape by hand for measuring and rewind it using a button on the case. These tapes are rigid, making them ideal solely for flat surfaces, although they are susceptible to corrosion from moisture. Regular cleaning and oiling after use are advised to maintain their condition.

4. Synthetic Tape

Synthetic tapes, constructed from fiberglass coated with PVC, are lightweight and flexible. They come in lengths of 5m, 10m, 20m, 30m, and 50m. However, these tapes may stretch under tension, making them less favorable for accurate surveying tasks. Nonetheless, they are recommended over steel tapes when measuring near conductive structures like electric fences and railways.

5. Invar Tape

Invar tapes consist of an alloy composed of 36% nickel and 64% steel. They typically feature a 6mm wide strip and are available in lengths of 30m, 50m, and 100m.

Remarkably, invar has a low coefficient of thermal expansion, rendering it unaffected by temperature fluctuations, which makes these tapes ideal for high-precision surveying tasks such as baseline measurement and triangulation surveys. Despite being more costly than other types, invar tapes require careful handling to avoid bends or kinks.

Also Read: Methods of Measurements and Units of Civil Construction Works
Also Read: Modern Surveying Instruments and Their Uses

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