Method and apparatus for standardization of a measuring instrument

• US 20080168822A1
• Filed: 04/27/2007
• Published: 07/17/2008
• Est. Priority Date: 09/19/2002
• Status: Active Grant

• Current Assignee: FOSS Analytical A/S
• Original Assignee: FOSS Analytical A/S
• Inventors: Nilsson, Sven-Anders, Ebelin, Anders, Buchmann, Bo, Westerhaus, Mark
• Granted Patent: US 7,486,388 B2
• Time in Patent Office: Days
• US Class Current: 73/1.01
• CPC Class Codes: G01N 2021/3155 Measuring in two spectral ranges, e.g. UV and visible
• CPC Class Codes: G01N 21/274 Calibration, base line adjustment, drift correction
• CPC Class Codes: G01N 21/278 Constitution of standards
• CPC Class Codes: G01N 21/359 using near infrared light
• CPC Class Codes: G01N 2201/0221 Portable; cableless; compact; hand-held

Abstract

A method, a portable device and a measuring instrument for standardization of a satellite measuring instrument to a corresponding master measuring instrument are disclosed. The portable device includes a device for containing a reference material, and an information unit for storing information about the reference material and measurements of the reference material on the master measuring instrument. When placed in a satellite measuring instrument, information from the master instrument stored in the information unit of the portable device is transmitted automatically and wirelessly to the satellite instrument and, together with measurements by the satellite instrument of the reference masterial in the portable device, a standardization model for the satellite instrument and the sample type is obtained.

Claims

45. A measuring instrument for routine measurement of a sample material, comprising

a receiving means for receiving a sample container containing said sample material;

a means for measuring said sample material when said sample container is located in said receiving means, and for measuring a reference material being contained in a portable device when said portable device is located in said receiving means;

a means for reading information from an information unit of said portable device containing said reference material when said portable device is located in said receiving means, wherein said information is about said reference material and corresponding measurements of said reference material on a master measuring instrument; and

a means for processing said information to obtain a standardization model.

46. A measuring instrument according to claim 45, wherein said

standardization model describes the difference between the result of measuring said reference material and said corresponding measurement obtained by means of said master measuring instrument.

47. A measuring instrument according to claim 45, wherein said means for processing is also adapted to select, depending on the type of the sample material, a correct standardization model from a plurality of stored standardization models.

48. A measuring instrument according to claim 45, wherein said means for processing comprises an external computer.

49. A measuring instrument according to claim 45, wherein said means for reading information is arranged to read said information wirelessly.

50. A measuring instrument according to claim 45, wherein said information further is about said master measuring instrument.

51. A measuring instrument according to claim 45, wherein said means for measuring said sample material is arranged to automatically start measuring on said reference material when said portable device is located in said receiving means.

52. A measuring instrument according to claim 45, wherein said means for reading information from said information unit of said portable device is arranged to automatically start reading said information when said portable device is located in said receiving means.

53. A measuring instrument according to claim 45, wherein said means for reading said information comprises a radio frequency identification reader.

54. A measuring instrument according to claim 45, wherein said measuring instrument is a visible and near infrared reflection measuring instrument.

55. A measuring instrument according to claim 45, wherein said measuring instrument is a visible and near infrared transmission measuring instrument.

56. A measuring instrument for routine measurement of a sample material, comprising

a container configured to receive a sample container containing said sample material;

a detector configured to measure said sample material when said sample container is located in said container, and for measuring a reference material being contained in a portable device when said portable device is located in said container;

a reader configured to read information from an information unit of said portable device containing said reference material when said portable device is located in said container, wherein said information is about said reference material and corresponding measurements of said reference material on a master measuring instrument; and

a processor configured to process said information to obtain a standardization model.

57. A measuring instrument according to claim 56, wherein said standardization model describes the difference between the result of measuring said reference material and said corresponding measurement obtained by means of said master measuring instrument.

58. A measuring instrument according to claim 56, wherein said processor is also configured to select, depending on the type of the sample material, a correct standardization model from a plurality of stored standardization models.

59. A measuring instrument according to claim 56, wherein said processor comprises an external computer.

60. A measuring instrument according to claim 56, wherein said reader is arranged to read said information wirelessly.

61. A measuring instrument according to claim 56, wherein said information further is about said master measuring instrument.

62. A measuring instrument according to claim 56, wherein said detector is arranged to automatically start measuring on said reference material when said portable device is located in said container.

63. A measuring instrument according to claim 56, wherein said reader is arranged to automatically start reading said information when said portable device is located in said container.

64. A measuring instrument according to claim 56, wherein said reader includes a radio frequency identification reader.