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A Dakota Delay Line is a small part fitted to a single element ultrasonic transducer to slow the sound pulse before it enters the test piece, allowing precision measurement on thinner materials. On thin sections the return echo arrives so quickly that it overlaps the transmit pulse and cannot be measured cleanly. The Dakota Delay Line separates the two in time, which is what makes accurate thickness readings on thin material possible.
Delay lines come in two materials, acrylic and graphite, and the material being measured determines which to use. Acrylic delay lines of the A Dakota Delay Line suit measuring on steel, aluminium and titanium with the gauge in Interface-Echo or Echo-Echo mode. Graphite delay lines suit thin plastics and other similar materials with the gauge set to Plastic Mode. Used with higher frequency single element transducers, a Dakota Delay Line improves resolution and the detectability of small flaws.
The range for the A Dakota Delay Line includes acrylic cone tip delay lines in 1/8 inch and 3/16 inch, a graphite cone tip in 3/16 inch, acrylic pencil tips in 1/16 inch and 1/8 inch diameter at 0.45 inch length, acrylic delay line tips of 1/4 inch diameter in 1/2 inch and 3/8 inch lengths, and a 1/4 inch graphite tip. These parts support precision ultrasonic thickness measurement and are supplied by BAMR, South Africa's authorised distributor.
Dakota Delay Line
A small part used with single element transducers to slow down the sound pulse to allow precision measurement on thinner materials.
- Two different materials of delay line - acrylic and graphite The material you are measuring will affect the material of the delay line you should use.
- Acrylic delay lines suitable for measuring on steel, aluminium, and titanium With the gauge in either Interface-Echo or Echo-Echo mode.
- Graphite delay lines for thin plastics and other similar materials With the gauge set to Plastic Mode.
- Higher frequency single element transducers Improve resolution and small flaw detectability.
When to use a Dakota Delay Line
Use a delay line when you are measuring thin material with a single element transducer and need the sound pulse slowed down for a clean reading. This small tip fits to the probe so you can take precision measurements that would otherwise be too thin to resolve.
- 1Reach thin materialIt slows the sound pulse to allow precision measurement on thinner materials, which is where a bare single element probe struggles.
- 2Match material to tipAcrylic suits steel, aluminium and titanium while graphite suits thin plastics, so choosing the right delay line keeps readings accurate on your substrate.
- 3Sharper small flaw detectionUsed with higher frequency single element transducers, it improves resolution and the detectability of small flaws.
Lower-budget alternatives
Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
Book a 10-minute callOr , our product assistant, for an instant answer.
When to use this
When to use a Dakota Delay Line
Use a delay line when you are measuring thin material with a single element transducer and need the sound pulse slowed down for a clean reading. This small tip fits to the probe so you can take precision measurements that would otherwise be too thin to resolve.
- 1Reach thin materialIt slows the sound pulse to allow precision measurement on thinner materials, which is where a bare single element probe struggles.
- 2Match material to tipAcrylic suits steel, aluminium and titanium while graphite suits thin plastics, so choosing the right delay line keeps readings accurate on your substrate.
- 3Sharper small flaw detectionUsed with higher frequency single element transducers, it improves resolution and the detectability of small flaws.
Lower-budget alternatives
Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
Book a 10-minute callOr , our product assistant, for an instant answer.
Specifications
Part Numbers
- X-132-0000
- Cone Tip Delay Line: Acrylic; 1/8"
- X-532-0000
- Cone Tip Delay Line: Acrylic; 3/16"
- X-533-0000
- Cone Tip Delay Line: Graphite; 3/16"
- X-152-0000
- Delay Line Tip (Pencil): Acrylic; 1/16" Dia x 0.45" L
- X-752-0000
- Delay Line Tip (Pencil): Acrylic; 1/8" Dia x 0.45" L
- F-000-7103
- Delay Line Tip: Acrylic; 1/4" Dia x 1/2" L
- F-000-7102
- Delay Line Tip: Acrylic; 1/4" Dia x 3/8" L
- X-633-0000
- Delay Line Tip: Graphite; 1/4"
Part Numbers
Part Numbers
| Description | Part Numbers |
|---|---|
| Delay Line Tip: Graphite; 1/4″ | X-633-0000 |
| Cone Tip Delay Line: Acrylic; 1/8″ | X-132-0000 |
| Cone Tip Delay Line: Acrylic; 3/16″ | X-532-0000X-533-0000 |
| Delay Line Tip (Pencil): Acrylic; 1/16″ Dia x 0.45″ L | X-152-0000 |
| Delay Line Tip (Pencil): Acrylic; 1/8″ Dia x 0.45″ L | X-752-0000 |
| Delay Line Tip: Acrylic; 1/4″ Dia x 1/2″ L | F-000-7103 |
| Delay Line Tip: Acrylic; 1/4″ Dia x 3/8″ L | F-000-7102 |
Frequently asked questions
Why do I need a delay line for measuring thin materials?
A delay line slows the sound pulse from the transducer, allowing precise measurement on material thicknesses that would otherwise be difficult to resolve accurately.
What Dakota Delay Line variants does BAMR stock?
Dakota Delay Lines are available in cone tip and pencil tip styles, in both acrylic and graphite materials, ranging from 1/16" to 1/4" in diameter. Confirm your measurement requirements when requesting a quote for the correct part number.
Are Dakota Delay Lines designed for single element transducers?
Yes, Dakota Delay Lines are designed specifically for use with single element transducers. Confirm your transducer type when requesting a quote to ensure compatibility.
How do I choose which part number to order?
Selection depends on your tip style (cone or pencil), material (acrylic or graphite), and diameter requirements specific to your application. Provide your transducer type and coating thickness when requesting a quote.
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Request a quote
Tell us about your application and we will send a quote with lead time and accessories.