The accelerometer is shaped as {HEAD ~ a torus} with the center hole providing {TAIL ~ center hole bolt mounting} 
The accelerometer is shaped as { HEAD ~ a torus } with the center hole providing { TAIL ~ center hole bolt mounting }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL