Hi all,
beside using a 555 timer to drive or to send a ping in the transmitting circuit, is there any other ways? Please help!
I came accross with frequency modulation from the net, but I'm really have no idea with this method (freq Modulation). Could anyone pls help?
Cheers
HI,
I'm currently working on the drive circuits for both transmitting and receiving circuits.
I'm trying to implement the phase-delay method to steer the scanning beams of 4 ultrasonics transmitters and there will be a receiver to pick up the signal reflected.
Most of the circuits that I...
Hey guys,
We need to design a mobile work platform for the use in servicing wind powered generators.
Here is the requirements for the mobile work platform:
Max working height 85m
Max working distance(horizontal) 30m
Safe working load: 300kg
Any type of system may be used, for example telescoping...
if impossible, i would prefer an exchanger of size 0.5X 0.5X 1m.
The problems is adding more rows of tubes, the larger the size of the exchanger.
Thanks man
No. The air flow is fixed. What i need to consider is the arrangement of the finned tubes in order to get the smallest size of the exchanger. The size of the exchanger according to my calculation is too big (1.7mx0.8mx9m).
SO, any other idea to reduce the size?
anyone have a idea to built a heat exchanger which can heat up an airflow of 3kg/s from 20degree celcius to 28 celcius. The air is heat up by Aluminium pipes with finns which carry 95 degree celcius of water. Pretty hard to design an exchanger which is small size.
Cheers
