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

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 ...

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Problems solved by technology

Thus increasing detection cost and sensor installation cost

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