Method for digital detecting rotating equipment rotary speed and rotary direction with single sensor

A technology of rotating equipment and digital detection, which is applied to devices, instruments, and measuring devices using electric/magnetic methods, can solve the problems of increasing detection costs and sensor installation costs, and achieves the effect of simple structure and cost reduction.

Inactive Publication Date: 2008-10-01
JIANGSU DAJIANG WOOD IND
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Thus increasing detection cost and sensor installation cost

Method used

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  • Method for digital detecting rotating equipment rotary speed and rotary direction with single sensor
  • Method for digital detecting rotating equipment rotary speed and rotary direction with single sensor
  • Method for digital detecting rotating equipment rotary speed and rotary direction with single sensor

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Embodiment Construction

[0019] Such as figure 1 As shown, the present invention is provided with a turntable 1 installed coaxially with the rotating shaft on the rotating device, and sensor sensing sheets 21, 22, 23, sensing sheets 21 and 22 are arranged on different azimuth angles of the circumference of the rotating disk 1. Composed of T 小 Small azimuth; the T formed by the induction sheet 22 and the induction sheet 23 中 In the azimuth, the T formed by the induction sheet 23 and the induction sheet 21 大 Great azimuth. Azimuth T 小 中 大 . When the turntable rotates one circle, the sensor generates three different pulse signals corresponding to the installation angle of the induction sheet, the small interval time, the middle interval time and the large interval time, the pulse signal, through such as figure 2 The shaping circuit and arithmetic circuit in the electrical principle block diagram shown in the figure complete the calculation of the rotation speed, and the digital detection result is ...

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Abstract

The present invention relates to a method for detecting a rotation speed and a rotation direction of a rotating apparatus with the digital detection of a single sensor. In the method, a turnable which is connected with a rotation axis with a same axial center is provided on the rotating apparatus. Different directions of the circumference of the turnable are provided with a plurality of inducing pieces of a same sensor. The position angles formed by adjacent inducing pieces are not equal. The inducing pieces are arranged in the sequence of the magnitude of the position angle. When the turnable rotates, a sensor detects the pulse output generated by the inducing pieces. The pulse signal is obtained through a shaping circuit and is outputted to an arithmetic circuit and is connected to a display circuit. A time period S for rotating the turnable for a circle is the summation of a plurality of adjacent pulse interval lengths of a plurality of inducing piece compositions. The rotation speed of the turnable is digitally displayed. The arrival sequence of spacing interval of random adjacent pulse is obtained for determining that the rotation direction of the turnable is clockwise direction or counter-clockwise direction. The invention requires only one sensor for completing the digital detection to the rotation speed and rotation direction of the rotating apparatus. The installation position of the inducing piece of the sensor has no high requirement and the structure is simple. The cost for digital detection and the cost for installing the sensor are reduced.

Description

technical field [0001] The invention relates to a digital detection method for rotating equipment rotation speed and steering direction, in particular to a single sensor digital detection method for rotating equipment rotation speed and steering direction. Background technique [0002] At present, the digital measurement of the rotating speed and steering of the rotating equipment is to install the induction sheet on the rotating equipment under test, and generate pulses through the sensor induction, and obtain the digital measurement value through the operation circuit and the display circuit. Usually, the pulse signal generated by one sensor is used to calculate the speed, and the signal generated by another sensor is used to determine the steering direction of the rotating equipment. Therefore, two sensors must be installed separately to complete the digital measurement tasks of rotating equipment speed and steering. Thus, detection cost and sensor installation cost are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P3/44G01P13/04
Inventor 周国平朱典想时维铎刘江波于洋
Owner JIANGSU DAJIANG WOOD IND
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