|type||Integration wedge single array probe|
|crystal size||Ø 2mm|
|-6dB central frequency||20MHz (±10%)|
|-6dB relative sensitivity||≥ -40db|
|-6dB relative bandwidth||≥ 50%|
|Echo pulse width||<0.4μs|
|-20dB pulse width||≤150ns|
|investigation depth||≥ 20mm|
|test precision||± 0.02mm|
|repeated accuracy||± 3%|
|Minimum test thickness||0.15mm (steel)|
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.
Technology parameters :
|Echo pulse width||<0.7μs||<0.55μs||<0.4μs||<0.35μs|
|Main use||For pets, livestock measuring fat||For pets, livestock measuring fat||For measuring distance in ophthalmology||For measuring thickness in ophthalmology|
The sensor used for measuring thickness of fat of Pet or livestock, and measuring distance or measuring thickness in ophthalmology.