NDT for Non-experts
Dolphicam is a family of mobile and ergonomic ultrasound camera systems designed for NDT inspection of CFRP (Carbon Fiber Reinforced Plastics). Unlike traditional phased array ultrasound, we have developed a unique 2D matrix transducer design that deliver extremely high resolution images, making it possible for even non-experts to perform NDT inspections.
Sometimes, the use of coupling gel or water is not acceptable or possible. Dolphicam features a dry coupling membrane that provides a large contact area and good mechanical coupling on painted or shiny surfaces.
Coupling fluids may be used to improved contact and reduce noise on rougher surfaces.
Phased Array vs Dolphitech Matrix transducers
Phased array transducers contain a number of individual transducers that can be pulsed individually to steer and focus the sound beam in a specific direction. Linear arrays are typically used in combination with an encoder system matching the signal with positional information to build an 2-dimensional image. Price will increase with added number of elements and as element gets smaller in size.
Dolphitech Matrix transducers includes transducer elements placed in a 2-dimensional array. Since the transducer directly cover the area of inspection, no encoder system is needed to provide the position of each element. This reduces the risk of positional errors due to faults or imprecision in the encoder system. Our transducers have extremely high resolution, with a transducer density of 16 elements per square millimeter (10.322 per square inch)!
Substantial improvements in resolution is to be expected from a Dolphicam Ultrasound camera system compared to a Olympus MX phased array system.
|Dolphicam CF08||Olympus MX|
Our transducer technology is very flexible, opening up for transducers in any shape, any size.
The analogue electronics deliver the electrical signals to the transducer that transforms the electrical pulses to acoustic pulses. Furthermore, the received ultrasound echoes are amplified by the electronics through a low-noise, high frequency receiver chain.
The digital processing algorithms convert the ultrasound echoes into ultrasound images. The image and signal processing algorithms are developed to be optimal for the transducer design and object for inspection under different conditions.
Concepts and components are combined into a unique analogue electronics system especially designed for low cost and high performance. Learn more from our technical white papers.
- Matrix transducer design in any shape, any size.
- Ultrasound dry coupling membrane
- Adaptive backing
- Modular electronics for optimal number of TX and RX channels
- Varying element numbers, resolution and matrix form
- High resolution
- Combined transmit / receive elements
- Optimized for composite materials (CFRP)
- Very price and performance competitive