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Position sensing device for sodium-cooled fast reactor refueling machine and signal conversion method of position sensing device

A sensing device and a technology for a sodium-cooled fast reactor, applied in the sensing field, can solve the problems of unfavorable converter action signal adjustment, voltage amplitude reduction, etc., and achieve the effects of increasing the amplitude, stabilizing the signal, and expanding the adjustment range.

Inactive Publication Date: 2011-09-14
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

Since the voltage signal output by the coil is relatively small (2~4V), the output voltage amplitude decreases after rectification, which is not conducive to the adjustment of the converter action signal in the comparator circuit.

Method used

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  • Position sensing device for sodium-cooled fast reactor refueling machine and signal conversion method of position sensing device
  • Position sensing device for sodium-cooled fast reactor refueling machine and signal conversion method of position sensing device
  • Position sensing device for sodium-cooled fast reactor refueling machine and signal conversion method of position sensing device

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] figure 1 It is the wiring mode of the position sensor and the power transformer in the position sensing device of the present invention, such as figure 1 As shown, a position sensing device for a sodium-cooled fast reactor refueling machine includes a position sensor 11, a power transformer 13 connected to the position sensor 11, and a signal output terminal of the position sensor 11 connected to a signal converter 14. In this embodiment, the signal output end of the position sensor 11 is set as the midpoint 12 of the sensor coil 15, and the midpoint 14 of the power transformer 13 is grounded. When the mechanical equipment is in place, the armature 16 connected to the equipment is displaced relative to the sensor coil 15, causing a change in the inductance of the coil, and the position sensing device of the refueling machine converts ...

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Abstract

The invention relates to a position sensing device for a sodium-cooled fast reactor refueling machine and a signal conversion method of the position sensing device. In the conventional position sensing device for the sodium-cooled fast reactor refueling machine, an output signal is unstable and a motion signal of a converter in a comparator circuit cannot be regulated. In the invention, the signal output end of the position sensor is set to be a midpoint of a sensor winding; and the midpoint of a power transformer is grounded. During conversion of the output signal of the position sensor, a signal of a winding of the sensing device is amplified at first, rectified and compared. By adoption of the device and the method, the signal output from the position sensor is stable; moreover, a voltage signal output from the winding is larger and rectified output voltage amplitude is increased, so the regulation range of the motion signal of the converter is expanded.

Description

technical field [0001] The invention belongs to the field of sensing technology, and in particular relates to a position sensing device for a sodium-cooled fast reactor refueling machine and a signal conversion method thereof. Background technique [0002] The refueling machine is the refueling equipment in the experimental fast reactor. It is composed of a gripper and a guide pipe. The gripper and the guide pipe can move up and down. A self-inductive position sensor is installed on the mechanical equipment to detect the gripper and the guide pipe. exercise position. When the mechanical equipment is in place, the armature connected to the equipment is displaced relative to the sensor coil, causing a change in the inductance of the coil. The position sensor signal converter of the refueling machine converts the change in inductance of the coil into an electric quantity proportional to the displacement. After the signal is amplified and compared, the relay switch signal is ou...

Claims

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Application Information

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IPC IPC(8): G01B7/02G01D5/20
Inventor 董升国朱皓唐基本马洪盛赵莉霞
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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