FIELD: devices for detection cleaning pistons in pipelines. SUBSTANCE: introduced in receiver circuit are differentiator, comparator, trigger, pulse generator, summing amplifier and setter of initial level. Flux-gate meter is provided with additional winding. Introduced circuit in steady-state conditions makes it possible to minimize the value of projection of resulting vector of magnetic field intensity on longitudinal axis of flux-gate meter. EFFECT: higher stability. 2 dwg
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Authors
Dates
1998-12-27—Published
1992-09-14—Filed