FIELD: foundry. SUBSTANCE: device has detectors 2 characterized by high electric resistance, which are connected with power supply and registrar. Device has additional balanced bridges 3 connected to analog commutator 4, which is connected in series with scaling amplifier 5, analog-to-digital converter 6 and computer 7. Detectors 2 are connected into shoulders of the bridges and disposed in cavity of mould for its whole height. Registrar is made in form of plotter 8. Moreover, the detectors are disposed in cavity of the mould with pitch of 1/6-1/2 thickness of casting. EFFECT: improved truth of information in real time scale; improved precision. 2 cl, 2 dwg, 1 tbl
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