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我也要发布信息 当前位置: 首页 » 供应 » 电工电气 » 电线、电缆 » 排线

砂岩浮雕模具硅胶 高耐烧 易脱模 抗撒拉

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品牌: 宏图
单价: 38.00元/千克
起订: 1000 千克
供货总量: 9000000000000000 千克
发货期限: 自买家付款之日起 3 天内发货
所在地: 广东 深圳市
有效期至: 长期有效
最后更新: 2020-06-25 10:04
浏览次数: 46
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公司基本资料信息
详细说明

Mark 4 Plus弦线式多普勒,美国jja-instruments Mark 4 Plus详细描述  
The Mark 4 Plus Doppler phantom is a very accurate device for testing Doppler ultrasound scanners. It is especially useful for checking sample volume registration, color registration, directional discrimination, and Doppler velocity accuracy.
Superior accuracy is provided by using a string target that never changes (unlike suspended scatterers in fluid flow phantoms), and a crystalco待删除信息olled stepper motor. The motor speed is adjusted 1000 times per second,allowing realistic reproductions of human blood flow velocity patterns and a wide range of constant velocities.
Included with the Mark 4 Plus is an RS-232 remote co待删除信息ol interface. This new port can be used to co待删除信息ol and monitor all functions of the phantom using automated testing equipment or any computer.
The Mark 4 Plus has been designed for ease of use. It can be set up quickly and easily with ordinary tap water, it is simple to use, and almost no maintenance is required. Ultrasound technologists, biomedical technicians,
researchers, and manufacturers all rely on the Mark 4 Plus for hassle-free, reliable testing.
RS-232 Interface
RS-232 upgrade 待删除信息ailable
for existing customers

Mark 4 Plus Features:
? Flow simulation speeds of 10 to 200 cm/sec, bidirectional flow.
? W待删除信息eform simulations:
? Sine w待删除信息es with peak speeds of 100, 150, and 200 cm/sec
? Triangle w待删除信息es with peak speeds of 100, 150, and 200 cm/sec
? Stepped ramp w待删除信息e with stops at 0, 20, 40, 60, 80, and 100 cm/sec
? Physiological w待删除信息eforms including common carotid, femoral, aortic, pediatric umbilical,
stenotic common carotid, pediatric renal, pediatric ductus arteriosus, pediatric
middle cerebral, and pediatric descending thoracic
? Speed drift crystal locked to 20 parts per million.
? Speed accuracy co待删除信息olled to ± 1% of stated speed.
? RS-232 remote co待删除信息ol interface for automation.
? ‘Super Clamp’ probe positioner accepts all probes.
? Target angles from 15° to 90°.
? Power supply: 120V, 50W standard.
? Weight: 10 pounds (4.5 kg).
? Dimensions:
? Tank: 10" x 12" x 9" (25 x 30 x 23 cm)
? Co待删除信息oller: 8" x 9" x 4" (20 x 23 x 10 cm)

RS-232 Upgrade:
The Mark 4 has provided reliable Quality Assurance for health care providers, manufactur-ers and researchers for several years. It has now been upgraded to the Mark 4 Plus with the addition of a fully functional RS-232 interface port. This new port can be used to co待删除信息ol and monitor all functions of the phantom. This is useful for many applications, including final QC testing at manufacturing facilities. A process co待删除信息ol computer can run the Mark 4 Plus through a battery of tests while downloading the Doppler spectrum from the scanner being tested. Comparison of the measured w待删除信息eforms and the Doppler target confirms proper operation.
Existing Mark 4’s can be upgraded to include the RS-232 interface. Please contact us for more information.

信息来源:http://zhongguoguijiao.tpys.cn/
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