providing a signal representative of {HEAD ~ a reference rate} of change of {TAIL ~ the utensil content weight} 
providing a signal representative of { HEAD ~ a reference rate } of change of { TAIL ~ the utensil content weight }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL