From ALOKA Co., Ltd.;
'A Platform for Pure Harmonic Detection
The SSD-5000 is the second platform in our ProSound™ line of superior ultrasound systems.
The Pure Harmonic Detection technology provides distortion-free fundamental frequency transmission, offering optimum Harmonic Echo™ image quality. This technology is especially effective for obese patients and in a variety of technically difficult scanning conditions.'

From ALOKA Co., Ltd.;
'A High-Quality, Portable Veterinary Ultrasound System.
The SSD-500V is a rugged, portable convex sector/linear scanner that offers versatility, superb image quality and reliable performance in a compact design. This 22 lb system has Electronic dynamic focus and 256 shades of gray that produces high-quality images.
The SSD-500V includes comprehensive measurement and analysis packages. Measurements include distance/depth, area, circumference, velocity, heart rate, ratio and angle. The system also included obstetrical analysis functions that can calculate estimated gestational age and expected date of confinement.
In addition, customized obstetrical tables can be easily created. The SSD-500V software package also includes left ventricular function software for M-mode Cardiac evaluation.
The 500V provides excellent clinical versatility − for use in both small and large animal applications − using a wide range of optional convex and linear array transducers.'

From ALOKA Co., Ltd.;
'A Platform for Pure Harmonic Detection
Harmonic Echo™ technology constructs images using second harmonic components, which contain far less artifacts and noise than fundamental-frequency components.
Pure Harmonic Detection is a technology to transmit distortion-free, fundamental-frequency ultrasound beams. And when the fundamental-frequency ultrasound beam is a pure sinusoidal wave, both the fundamental-frequency image and the Harmonic Echo™ image are much clearer with less noise. This technology is especially effective for obese patients and in a variety technically difficult scanning conditions.'

From ALOKA Co., Ltd.;
'Innovative Image Quality in a Compact Size
Featuring design concepts inherited from our higher end systems along with Aloka's latest proprietary electronic technologies, the compact SSD-900V delivers superb images.
Traditionally, portable units suffer from hardware and software limitations that affect image quality. Aloka's SSD-900V sets new standards for what's possible in a portable unit. Incorporating over 50 years of experience and unique micro-chip technologies, the SSD-900V generates incredibly high-resolution images.
The SSD-900V offers a full range of measurement functions for professional ultrasonic examination. And unlike conventional portable systems, the SSD-900V includes annotation labeling and 15-channel preset functions as standard features.
The system also use Super High Density transducers (found our high-end systems) to enhance imaging resolution. These multi-frequency transducers provide a broad range of imaging frequencies to optimize scan frequency for depth of view.'

An array transducer is composed of multiple piezoelectric crystal elements arranged in an array. Arrays are transducer assemblies with a row of elements, used to focus the beam.

Types of array transducers:

See also Amplitude Shading, Transducer Types, and Transducer Assembly.