7.5Mhz A-scan Medical Ultrasonic Probe Ultrasound A-scan Biometry
Product Description
7.5Mhz A-scan Medical Ultrasonic Probe Ultrasound A-scan Biometry
Specification:
Name
| 7.5MHz A-Scan Probe
| ||||||
Model
| PH-7.5M | ||||||
Structure material
| Performance indicators ( underwater)
| ||||||
Piezo ceramics
| shape
| Ф5×0.27 mm | Center frequency
| 7.5MHz±10% | |||
material
| PZT-5 | relative bandwidth
| ＞50% | ||||
capacity
| 500pf ±20% | pulse width
| < 850ns | ||||
transmit-re ceive sensitivity
| -34dB
| ||||||
impedance：40Ω±15% | |||||||
shell
| size
| Ф8.5×9mm | |||||
materi al
| Black ABS | ||||||
Note | The lead wire is either 0.7mm coaxial cable or copper needle | ||||||
Working Principle:
The ultrasound A-scan works by projecting a sound wave through the eye and then measuring reflections. A reflection happens at the junction of two different densities, such as the interface between the posterior lens capsule and the vitreous. These echoes are shown as tall spikes of a high amplitude on the display, hence the name amplitude-scan, which is often abbreviated as A-scan.
A-scan ultrasound is used to take measurements for artificial lenses for cataract surgery. This quick and painless procedure can be performed in your doctor’s office.