Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
temac
on Dec 21, 2016
|
parent
|
context
|
favorite
| on:
Why Are Ultrasound Machines So Expensive?
You typically do short pulses in most modes. You can use some form of PWM to apodize on the edges, when needed.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
