Automated soil measurement device
First Claim
1. A measurement chamber for determining a characteristic of a liquid extractant-soil mixture, the measurement chamber comprising:
- a first surface having a first orientation, the first surface including a first measurement window holder including a first measurement window allowing transmission of at least ultraviolet light;
a second surface having the first orientation, the second surface having a second measurement window holder including a second measurement window allowing transmission of at least ultraviolet light, the second measurement window having a specified distance from the first measurement window; and
a third surface having a second orientation perpendicular to the first orientation, the third surface coupled to the first surface and to the second surface; and
a first angular surface coupled to the third surface in an orientation which directs particles away from the separation between the first measurement window and the second measurement window.
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Accused Products
Abstract
A system and a method are disclosed for combining a soil sample and extractant in a mixing chamber to produce a liquid extractant-soil mixture. A portion of the liquid extractant-soil mixture is directed from the mixing chamber through a sample measurement chamber coupled to the mixing chamber. The sample measurement chamber is coupled to a light source so that light propagates from the light source through the portion of the liquid extractant-soil mixture to an optical detector which generates an attenuation spectrum indicating light received by the detector at different wavelengths. The sample measurement chamber may include an attenuation cell having a specified optical path between a first measurement window and a second measurement window and angular surface directing particulates in the liquid extractant-soil mixture away from the attenuation cell.
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Citations
20 Claims
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1. A measurement chamber for determining a characteristic of a liquid extractant-soil mixture, the measurement chamber comprising:
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a first surface having a first orientation, the first surface including a first measurement window holder including a first measurement window allowing transmission of at least ultraviolet light; a second surface having the first orientation, the second surface having a second measurement window holder including a second measurement window allowing transmission of at least ultraviolet light, the second measurement window having a specified distance from the first measurement window; and a third surface having a second orientation perpendicular to the first orientation, the third surface coupled to the first surface and to the second surface; and a first angular surface coupled to the third surface in an orientation which directs particles away from the separation between the first measurement window and the second measurement window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A soil analysis device comprising:
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a measurement chamber for determining a characteristic of a liquid extractant-soil mixture, the measurement chamber comprising; a first surface having a first orientation, the first surface including a first measurement window holder including a first measurement window allowing transmission of at least ultraviolet light; a second surface having the first orientation, the second surface having a second measurement window holder including a second measurement window allowing transmission of at least ultraviolet light, the second measurement window having a specified distance from the first measurement window; and a third surface having a second orientation perpendicular to the first orientation, the third surface coupled to the first surface and to the second surface; and a first angular surface coupled to the third surface in an orientation which directs particles away from the separation between the first measurement window and the second measurement window; and a mixing chamber coupled to the measurement chamber, the mixing chamber configured to receive a soil sample and to receive extractant, the mixing chamber configured to produce and store the liquid soil-extractant mixture by combining the soil sample and the extractant, the mixing chamber configured to transmit the liquid soil-extractant mixture to the measurement chamber. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A measurement chamber for determining a characteristic of a liquid extractant-soil mixture, the measurement chamber comprising:
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a first surface having a first orientation, the first surface including a first measurement window holder including a first measurement window allowing transmission of at least visible light; a second surface having the first orientation, the second surface having a second measurement window holder including a second measurement window allowing transmission of at least visible light, the second measurement window having a specified distance from the first measurement window; and a third surface having a second orientation perpendicular to the first orientation, the third surface coupled to the first surface and to the second surface; and a first angular surface coupled to the third surface in an orientation which directs particles away from the separation between the first measurement window and the second measurement window. - View Dependent Claims (18)
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19. A measurement chamber for determining a characteristic of a liquid extractant-soil mixture, the measurement chamber comprising:
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a first surface having a first orientation, the first surface including a first measurement window holder including a first measurement window allowing transmission of at least near-infrared light; a second surface having the first orientation, the second surface having a second measurement window holder including a second measurement window allowing transmission of at least near-infrared light, the second measurement window having a specified distance from the first measurement window; and a third surface having a second orientation perpendicular to the first orientation, the third surface coupled to the first surface and to the second surface; and a first angular surface coupled to the third surface in an orientation which directs particles away from the separation between the first measurement window and the second measurement window. - View Dependent Claims (20)
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Specification