深圳湾边贸易代理gammex 1430 le 模体价格优惠.多普勒和灰阶扫描仪超声图像分析体模体 rmi 1430 le 1 美国，gammex公司 原装美国直接进口。

 comes in either 0.5【敏感词】0.7 attenuation (please specify)

 general:

 the 1430 le is designed to provide a sonographer with advanced design features that allow for both doppler【敏感词】b-mode ultrasound system tests in one unit.  this product consists of the flow system, phantom,【敏感词】electric flow controller meter.

the b-mode phantom component of the 1430 le is based on our 404gs le model that provides advanced technology for measuring image quality on small parts【敏感词】intracavity ultrasound scanning systems. with added grey scale targets this small parts phantom also measures contrast, temporal resolution【敏感词】system linearity. the phantom incorporates the gammex tissue mimicking gel which provides a smoother background texture【敏感词】composite film scanning surface that has improved transmission properties.

unique to the 404gs le phantom are the closely spaced pin targets. by spacing them closer together, our targets are ideal for testing a range of high frequency transducers. resolution patterns【敏感词】all vertical【敏感词】horizontal pins are made of 0.1 mm nylon fibers for better detail definition【敏感词】spatial resolution. three grey scale targets of -6 db, +6 db【敏感词】+12 db

relative to the background material are included. a series of anechoic cysts with diameters of 1, 2, 4【敏感词】7 mm permit easy evaluation of system noise【敏感词】distortion parameters.

two 4 mm vessels are incorporated into the system to meet with fda doppler sensitivity recommendations.  one vessel is parallel to the scan plan at 2 cm,【敏感词】the other vessel descends 35 degrees from the surface【敏感词】is used for measuring doppler sensitivity【敏感词】for developing scanner techniques.

this self-contained system provides a broad range of available flow rates【敏感词】test objects. the enhanced microprocessor-based flow controller meter produces accurate flow rates from 1 to 17 ml/sec corresponding to 0 to 174 cm/sec measurable velocities with a 1％ full scale (fs) accuracy.

the 1430 le provides a realistic test medium for assessing:

• maximum signal penetration

• channel isolation of directional discrimination

• registration accuracy of duplex sample gates【敏感词】similarities between b-mode【敏感词】 color flow images.

• flow rate readout accuracy

the gammex 1430 le is an all-in-one portable system powered by a built-in li/ion rechargeable battery. the universal charger is included with the system.

specifications:

tissue mimicking material

speed of sound . . 1540 ±10 m/s

attenuation . . . . 0.5【敏感词】0.7 ±0.05 db/cm/mhz

grey scale targets

contrast . . . . . . . -6, +6, & +12 db relative to background

diameter . . . . . . 7 mm

speed of sound . . 1540 ±10 m/s

attenuation . . . . 0.5【敏感词】0.7 ±0.05 db/cm/mhz

anechoic cysts

diameters . . . . . 1, 2, 4,【敏感词】7 mm

speed of sound . . 1540 ±10 m/s

attenuation . . . . 0.05 ±0.01 db/cm/mhz

blood mimicking fluid

density . . . . . . . 1.03 g/cc

speed of sound . . 1550 ±10 m/sec

scatter size . . . . 4.7 micron average

vessels

size. . . . . . . . . . 4 mm inside diameter

location . . . . . . horizontal 2 cm below surface; diagonal at 35 degrees from 1.5 cm below surface

electronic flow control system

measurable

velocities . . . . . . 0-174 cm/sec pulsatile

flow mode . . . . . preprogrammed for 0.25-2 seconds/pulse

pin targets

diameter of nylon lines . . . . . 0.1 mm (0.004 in)

vertical spacing. . 5 mm at 1 cm to 9 cm deep

horizontal

spacing . . . . . . . 10 mm at 1 cm【敏感词】5 cm  deep

container construction

size. . . . . . . . . . 22.9x15.9x21.9 cm  

                           (9x6.25x8.625 in)

weight. . . . . . . . 4.4 kg (9.5 lbs)

ac input voltage.....110 vac - 240 vac 50-60hz

battery. . . . . . . li-ion, rechargeable,universal charger and plugs included

all acoustic measurements at 4.5 mhz, 22° c

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