| 摘要 |
<p>PURPOSE:To provide a dispenser capable of easily and certainly detecting the residual amount of an emitting material. CONSTITUTION:The plunger 3 received in a syringe barrel 2 so as to be displaceable in the axial direction of the barrel is displaced to an emitting orifice 4A by predetermined quantity to emit a predetermined amount of the emitting material 5 in the syringe barrel 2 from the emitting orifice 4A. A magnet 6 is formed to the plunger 3 and a magnetic proximity sensor 8 detecting the displacement position of the magnet 6 along the axial direction within the syringe barrel 2 is provided.</p> |
