Hi permibility metal for dynamometer
Hi permibility metal for dynamometer
(OP)
What type of metal is suitable for the dynamometer?
I have a "self" designed dynamometer for testing our motors; it allows me to load up to 36 in-lb torques. Currently, the metal disc used in the dynamometer is a low carbon steel 1018 and it might too soft. As a new requirement of 48 in-lb torques applied, the dynamometer gets hot and the disc starts to deform. I need to find a metal which can withstand the temp. and get better performance. Some one suggested to used 430 steel which has Hi permeability; I have not tried it yet.
I have a "self" designed dynamometer for testing our motors; it allows me to load up to 36 in-lb torques. Currently, the metal disc used in the dynamometer is a low carbon steel 1018 and it might too soft. As a new requirement of 48 in-lb torques applied, the dynamometer gets hot and the disc starts to deform. I need to find a metal which can withstand the temp. and get better performance. Some one suggested to used 430 steel which has Hi permeability; I have not tried it yet.





RE: Hi permibility metal for dynamometer
What is your definition of permeability?
Regards,
Cory
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RE: Hi permibility metal for dynamometer
The heat is generated by magnetic force. I did not measure the heat temp. but by touching the body of dynamometer which has a coil installed in the metal case.
In general, soft magnetic alloys are materials that can be easily magnetized - thus exhibiting high permeability - and just as easily demagnetized. Permeability is a ratio of the magnetic induction output (B) to the magnetic field strength input (H) that produced the induction. The higher the permeability, the better the magnetic performance. This permeability allows to generate force on disc or toeque to simulate a load on motor.
Thanks
Harry
RE: Hi permibility metal for dynamometer
Regards
StoneCold
RE: Hi permibility metal for dynamometer
The thickness of disc is 1/8" with 7" dia. It is a flat disc. Compare with other dynamometer, the inner portion of disc should be thicker than outer portion to prevent the deformation. Since this is an old self designed machine, there is no room for the changes and there is no drawing for the information. I just hope that I can find a different type metal to improve the performance.
Thanks
Harry
RE: Hi permibility metal for dynamometer
RE: Hi permibility metal for dynamometer
rp
RE: Hi permibility metal for dynamometer
Harry
RE: Hi permibility metal for dynamometer
Harry
RE: Hi permibility metal for dynamometer
Just my $.02
Mike
RE: Hi permibility metal for dynamometer
Thanks,
Harry