Cereal flow transducer based on optical-electricity encoder

Abstract

A photoelectric encoder-based grain flow sensor belongs to the grain flow sensors and comprises an outer shell, a spacer plate, two fixed frames and a wiring socket; the bottom of the outer shell is the spacer plate; the wiring socket is fixed on the top part of the outer shell; the two fixed frames are arranged inside the outer shell and fixed on the spacer plate; the optical encoder-based grain flow sensor also comprises a rotating shaft, a retaining flake, a bearing and a photoelectric encoder; wherein, the photoelectric encoder comprises a detection part and a signal transmission module; the detection part comprises an outer detection ring and an inner detection ring; one end of the rotating shaft is fixed on the two fixed frames through the bearing, while the other end of the rotating shaft is extended to the external of the outer shell; the retaining flake is fixed with the other end of the rotating shaft; the detection part is arranged on the rotating shaft between the two fixed frames; the outer detection ring is fixed with the two fixed frames; the inner detection ring is fixed with the rotating shaft; the positive output end and the negative output end of the detection part are respectively connected with the input end of the signal transmission module; the signal transmission module is fixed on the inner surface of the outer shell; and the output end of the signal transmission module is connected with the wiring socket. The invention is accurate in detection.

Description

technical field [0001] The invention relates to a sensor, in particular to a grain flow sensor based on a photoelectric encoder. Background technique [0002] The precision harvesting link is not only the end of a complete precision agriculture process, but also the beginning of the next round of precision agriculture process. The information obtained from it, such as crop yield distribution, can be used to feed back the previous practice results of each link of precision agriculture and provide a basis for the next round of precision agriculture. Precision agriculture provides important basic information, so it is the most critical technical link in the production process of precision agriculture. The grain mass flow sensor is the core component in this link, and it is also the focus of this research. Of course, the intelligent yield measurement system composed of this sensor as the core will also be studied at the same time. [0003] The public number CN1702438A published...

AI Technical Summary

Problems solved by technology

When the strain resistance is disturbed by the field temperature, its resistance value will change accordingly, which will affect the measurement accuracy

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