| 摘要 |
PURPOSE:To check the form of a magnetic matter with a simple constitution by distributing the magneto-electric conversion elements in a matrix form toward X and Y axes. CONSTITUTION:Hall devices 34... are actuated by magnetic matters 15-15''' set at the bottom parts of tableware 14-14''' containing foods on a tray 6 set on a form detecting plate 30. The electric signals are produced from a sense wire according to an area {(2a+2b)c} of matters 15-15'''. These electric signals are supplied to waveform shaping circuits 39 and 40 and compared with a reference power supply 45 by a comparator 46. The result of the comparison is stored to a memory element 47 to obtain a binary signal. For a coincidence detecting circuit 41, the signals in the direction of the Y axis are supplied to AND circuits 51.... While the signals in the direction of the X axis are switched every piece by a switch 52 and supplied to the circuits 51.... Then a signal of ''1'' is delivered when both input signals are set at ''1'' and then switched for each signal in the direction of the X axis to be stored into a memory 42 of the corresponding address. |
