SU885940A1 - Pulse fluxmeter calibration method - Google Patents

Description

The invention relates to magnetic measurements and can be used for calibrating webermeters with primary induction converters. A known method for calibrating pulsed webermeters in which a pulsed signal is applied to the input of a webermeter. In the known method, the use of graded coils with a known constant leads to a large error, since this method involves measuring the current in a graduated coil in a steady state. There is another method for calibrating pulsed webermeters, which involves calibrating the measuring channel of a webermeter with a pulse signal equivalent to incrementing the magnetic flux linkage 2. A disadvantage of the known method is that calibration is carried out separately for the measuring channel using pulse signals With a known value of volt-second area and calculated or experimental determining a constant primary induction converter, which reduces the accuracy of the calibration. The purpose of the invention is to improve the accuracy of calibration. This goal is achieved by the fact that in a known method of calibrating pulsed webermeters, including calibrating the measuring channel of a webermeter, a pulsed signal equivalent to the increment of magnetic flux linking moves the primary converter of webermeter from the first region with a zero value of magnetic inductance through a local region with a known magnetic induction value the second area with a zero value of magnetic induction. The drawing shows one of the possible options for the device.

Claims (1)

SUMMARY OF THE INVENTION A primary induction converter is located in a through channel. The method is as follows. Using an electromagnet in local area 5 between poles 1 and 2 1S A method for calibrating pulse web meters, including calibration from the measuring channel of the web meter ^{1 by a} pulse signal equivalent to. 20 magnetic flux linkage, creates a magnetic field with a predetermined value of magnetic induction. The primary induction transducer 6 is placed in the first region 3 with a zero value of magnetic induction. Then, the primary induction transducer 6 is successively moved through a local one, characterized in that, in order to increase accuracy, the primary transducer of the webmeter is moved from the first region with zero magnetic induction value 25 through the local region with a known magnetic induction value to the second region with zero magnetic region value 5 s the well-known value of Mai — nitric induction into the second region 4 with zero value of magnetic induction. The signal induced in this case in the primary induction transducer 6 is equivalent to the signal from the magnetic induction pulse with amplitude. no induction.