J. Kissel

The HAM-A driver chassis (D1100687) seems to now be the go-to, favored, coil driver for any and all new SUS stages that come along (see G1100968 for tabulated summary). However, each of these new SUS stages have different actuation requirements, so the actuator systems are often tailored to have the drivers with different output impedance, driving AOSEMs or BOSEMs, and then a bespoke magnet size.

As such, here, in prep for an update to the Controls Design Summary Table (again, G1100968), I demonstrate the output of a new, quick, comparison script 
    /ligo/svncommon/SusSVN/sus/trunk/Common/MatlabTools/
         compare_OSEM_actuator_strength.m (rev 11998)
that compares the output of our trusty "have to get it right, or else the IFO doesn't work" function that returns properties of SUS stages,
    /ligo/svncommon/SusSVN/sus/trunk/Common/MatlabTools/
make_OSEM_filter_model.m (rev 11997)
which I've just today updated to make sure that the HATS and OFIS information was correct when used.

Here's the output, sorted by total actuation strength per actuator (individual channel coil driver transconductance * single magnet+coil force coefficient):
    {'susType'}    {'isoStage'}    {'Osem Type'}    {'Magnet Size'}    {'Force Co [N/A]'}    {'Driver Type'   }    {'Driver TC [mA/V]'}    {'Total Strength [N/V]'}
    {'HATS'   }    {'M1'      }    {'B'        }    {'4.0Dx4.0T'    }    {[       0.39254]}    {'-v1 (100 Ohm)' }    {[          9.1059]}    {[           0.0035744]}
    {'BHSS'   }    {'M1'      }    {'A'        }    {'2.0Dx6.0T'    }    {[        0.0309]}    {'-v1 (100 Ohm)' }    {[          10.055]}    {[          0.00031069]}
    {'OFIS'   }    {'M1'      }    {'A'        }    {'3.0Dx6.0T'    }    {[        0.0695]}    {'-v2 (1.2 kOhm)'}    {[          0.9133]}    {[          6.3474e-05]}
    {'OPOS'   }    {'M1'      }    {'A'        }    {'2.0Dx6.0T'    }    {[        0.0309]}    {'-v2 (1.2 kOhm)'}    {[          0.9133]}    {[          2.8221e-05]}
    {'HTTS'   }    {'M1'      }    {'B'        }    {'2.0Dx3.0T'    }    {[         0.021]}    {'-v2 (1.2 kOhm)'}    {[         0.90474]}    {[          1.8999e-05]}
    {'HAUX'   }    {'M1'      }    {'A'        }    {'1.9Dx3.2T'    }    {[        0.0158]}    {'-v2 (1.2 kOhm)'}    {[          0.9133]}    {[           1.443e-05]}
    {'HATS'   }    {'M3'      }    {'A'        }    {'2.0Dx0.5T'    }    {[       0.00281]}    {'-v2 (1.2 kOhm)'}    {[          0.9133]}    {[          2.5664e-06]}

Notes: 
    - this is *per actuator*. One must go a step further and count number of actuators and lever arms if you want to convert to actuation strength in the Euler basis.
    - the magnet size is n.nDxn.nT for Diameter and Thickness (where thickness is aka length).

Just interesting to see "on paper," all in one place; not even the controls design summary table summarizes the information in this way.