Lost-grain detector for harvesting machine
AssigneeClass OHG
InventorsNorbert Diekhans, Willi Behnke
Life of this patent
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Abstract
The grain-loss detector according to this invention usable in combination with a harvesting machine having an output passage comprises an impact plate having a front face exposed in the passage for direct contact by crop exiting the machine and an opposite back face and an electroacoustic transducer capable of converting vibration into an electrical output and having a side directly engaging the back face of the impact face. According to this invention the side of the transducer is retained in direct contact with the back face of the impact plate and electronic elements spaced from the transducer serve to convert the output of the transducer into a usable data signal.
Claims11
In combination with a harvesting machine having an output passage, a grain-loss detector comprising:
- an impact plate having a front face exposed in the passage for direct contact with crop exiting the machine and an opposite back face;
- an electroacoustic piezoelectric quartz crystal transducer capable of converting vibration into an electrical output and having a side directly engaging the back face of the impact plate;
- means retaining the side of the transducer in direct contact with the back face of the impact plate;
- and
- means including electronic elements spaced from the transducer for converting the output of the transducer into a usable data signal.
In combination with a harvesting machine having an output passage, a grain-loss detector comprising:
- an impact plate having a front face exposed in the passage for direct contact by crop exiting the machine and an opposite back face;
- an electroacoustic transducer capable of converting vibration into an electrical output and having a side directly engaging the back face of the impact plate;
- means retaining the side of the transducer in direct contact with the back face of the impact plates;
- means including electronic elements spaced from the transducer for converting the output of the transducer into a usable data signal;
- one of the flaps formed with bent-over tabs;
- cabling extending from the elements and secured under the tabs.
In combination with a harvesting machine having an output passage, a grain-loss detector comprising:
- an impact plate having a front face exposed in the passage for direct contact by crop exiting the machine and an opposite back face;
- an electroacoustic transducer capable of converting vibration into an electrical output and having a side directly engaging the back face of the impact plate;
- means retaining the side of the transducer in direct contact with the back face of the impact plate;
- means including electronic elements spaced from the transducer for converting the output of the transducer into a usable data signal;
- mounting struts for supporting the impact plate in the passage and extending only between the flaps.
Dependencies are inferred from the claim text.