Method and device for precise counting and measuring the particulates and small bodies

• US 5,767,967 A
• Filed: 01/02/1997
• Issued: 06/16/1998
• Est. Priority Date: 01/02/1997
• Status: Expired due to Term

• Current Assignee: Aleksandr L Yufa, Yelena V. Yufa
• Original Assignee: Aleksandr L Yufa
• Inventors: Yufa, Aleksandr L.
• Primary Examiner(s): Pham, Hoa Q.
• Application Number:
  US08/778,036
• Time in Patent Office: 530 Days
• Field of Search: 356/335-343, 356/236, 356/73, 356/317, 356/301, 356/39, 250/574, 250/575, 250/573, 250/458.1, 250/461.2
• US Class Current: 356/336
• CPC Class Codes: G01N 15/0205 by optical means

Abstract

A device for counting and measuring the particles provides a precise analysis of the particle characteristics and includes an ellipsoidal mirror system, having two different sizes ellipsoidal concentric mirrors (4) and (5) connected towards to each other by their cross-section lateral areas, and a first ellipsoidal mirror (4) is smaller than a second ellipsoidal mirror (5), includes also a light beam and a particulates flow passing inside the first ellipsoidal mirror (4) through a first focus of the first ellipsoidal mirror (4), concurred with a second focus of the second ellipsoidal mirror (5), also includes a light detector (20), which is placed inside the second ellipsoidal mirror (5) at a first focus of the second ellipsoidal mirror (5), concurred with a second focus of the first ellipsoidal mirror (4). An improved device comprises also an electronic control system, including an analog-digital subsystem (45) and a microprocessor subsystem (32), which provide the signal processing and control functions.

Claims

1. A method for precise counting and measuring a particulates and small bodies illuminated by a light beam and including the steps, wherein:

detecting a scattered light by an ellipsoidal mirror system, comprising a first ellipsoidal mirror and a second ellipsoidal mirror, which is bigger than said first ellipsoidal mirror, wherein said first ellipsoidal mirror and said second ellipsoidal mirror are connected towards to each other by cross-section lateral areas of said first ellipsoidal mirror and said second ellipsoidal mirror, wherein said ellipsoidal mirror system is placed along a device axis, which concurs with the major axes of said first ellipsoidal mirror and said second ellipsoidal mirror, wherein a first focus of said first ellipsoidal mirror concurs on said device axis with a second focus of said second ellipsoidal mirror and a second focus of said first ellipsoidal mirror concurs on said device axis with a first focus of said second ellipsoidal mirror;

detecting said scattered light which is occurred inside said first ellipsoidal mirror on said device axis by intersection of said light beam with a particulates and small bodies flow at a point of said second focus of said second ellipsoidal mirror, which belongs also to said first focus of said first ellipsoidal mirror;

detecting said scattered light by a light detector or by a detection means, which is placed inside said second ellipsoidal mirror on said device axis at a point of said first focus of said second ellipsoidal mirror, which belongs also to said second focus of said first ellipsoidal mirror.

2. The method of claim 1, wherein detecting said scattered light by said light detector or by said detection means, which is affixed to said ellipsoidal mirror system and a position of said light detector or said detection means on said device axis is adjusted by a detector affixture and adjustment means, which is placed in a peak area of said second ellipsoidal mirror.

3. The method of claim 1, wherein detecting said scattered light by said light detector, having an entire photo element on m=1, 2, 3, . . . , i, . . . sides of a body of said light detector.

4. The method of claim 1, wherein detecting said scattered light by said light detector, having an entire round geometric form photo element.

5. The method of claim 1, wherein detecting said scattered light by said detection means, comprising n=1, 2, 3, . . . , j, . . . light detectors, having a photo elements placed on one side of their bodies, and wherein these light detectors are connected each other by an inactive sides of their bodies.

6. The method of claim 5, wherein detecting said scattered light by said detection means, wherein a processed signals from said n=1, 2, 3, . . . j, . . . light detectors are summarized.

7. A device for precise counting and measuring a particulates and small bodies, comprising an ellipsoidal mirror system including a first ellipsoidal mirror and a second ellipsoidal mirror connected towards to each other by cross-sectional lateral areas, a light detector, a detector affixture and adjustment means, an one channel electronic control system, a device axis, a particulates and small bodies flow, a light beam, wherein said light beam intersects said particulates and small bodies flow on said device axis inside said first ellipsoidal mirror at a point, which belongs to a second focus of said second ellipsoidal mirror and to a first focus of said first ellipsoidal mirror, wherein said first ellipsoidal mirror is smaller than said second ellipsoidal mirror, in which on said device axis at a point, which belongs to a first focus of said second ellipsoidal mirror and to a second focus of said first ellipsoidal mirror, is placed said light detector, and wherein said detector affixture and adjustment means, having an organ of adjustment and a transmission means, is placed along said device axis in a peak area of said second ellipsoidal mirror.

8. The device of claim 7, wherein said light detector, comprising an entire photo element on two opposite sides of its body.

9. The device of claim 8, wherein said light detector is connected to an amplification means of said analog-digital subsystem of an one channel electronic control system.

10. The device of claim 7, wherein said one channel electronic control system, comprising an amplification means, which is connected to a diagnostic and calibration means and to a comparison means, which is connected to said diagnostic and calibration means, to a standard voltage means, which is connected to said diagnostic and calibration means, and to a pulse forming means, which is connected to said diagnostic and calibration means and to a counting means, which by a data bus and by an address bus is connected to a microprocessor subsystem, which by said data bus and by said address bus also is connected to a display means, to a printing means, to a compact disc means, to a software means, which belong to a terminal means, and to said diagnostic and calibration means, wherein said amplification means, said comparison means and said pulse forming means belong to an analog-digital subsystem.

11. The device of claim 9, wherein said data bus and said address bus are united in a multiple bus and a digital data exchange in said one channel electronic control system is provided by said multiple bus.

12. A device for precise counting and measuring a particulates and small bodies, comprising an ellipsoidal mirror system including a first ellipsoidal mirror and a second ellipsoidal mirror connected towards to each other by cross-sectional lateral areas, a detection means, a detector affixture and adjustment means, a two channel electronic control system, a device axis, a particulates and small bodies flow, a light beam, wherein said light beam intersects said particulates and small bodies flow on said device axis inside said first ellipsoidal mirror at a point, which belongs to a second focus of said second ellipsoidal mirror and to a first focus of said first ellipsoidal mirror, wherein said first ellipsoidal mirror is smaller than said second ellipsoidal mirror, in which on said device axis at a point, which belongs to a first focus of said second ellipsoidal mirror and to a second focus of said first ellipsoidal mirror, is placed said detection means, and wherein said detector affixture and adjustment means, having an organ of adjustment and a transmission means, is placed along said device axis in a peak area of said second ellipsoids mirror.

13. The device of claim 12, wherein said detection means, comprising a first light detector and a second light detector, wherein said first light detector of said detection means and said second light detector of said detection means are connected each other by an inactive sides of their bodies, wherein said inactive sides are opposite to an active sides of said first light detector and said second light detector.

14. The device of claim 13, wherein said first light detector of said detection means is connected to an amplification means of a first channel of said two channel electronic control system and a second light detector of said detection means is connected to said amplification means of a second channel of said two channel electronic control system.

15. The device of claim 12, wherein said two channel electronic control system, comprising a diagnostic and calibration means, a summarizing means, a terminal means, a first channel, a second channel, a microprocessor means, a standard voltage means, an analog-digital subsystem of said first channel, having connected in sequence an amplification means of said first channel, a comparison means of said first channel and a pulse forming means of said first channel, an analog-digital subsystem of said second channel, having connected in sequence an amplification means of said second channel, a comparison means of said second channel, and a pulse forming means of said second channel, wherein a counting means of said first channel is connected to said pulse forming means of said first channel and to said summarizing means, wherein a counting means of said second channel is connected to said pulse forming means of said second channel and to said summarizing means, which by a data bus and by an address bus is connected to said microprocessor means, which also by said data bus and by said address bus is connected to a displaying means of said terminal means, to a printing means of said terminal means, to a compact disc means of said terminal means, to a software means of said terminal means, to said counting means of said first channel, to said counting means of said second channel and to said diagnostic and calibration means, which is connected to said amplification means of said first channel, to said amplification means of said second channel, to said pulse forming means of said first channel, to said pulse forming means of said second channel, to said comparison means of said first channel and to said comparison means of said second channel, which is connected to said comparison means of said first channel and to said standard voltage means, which is connected to said diagnostic and calibration means.

16. The device of claim 14, wherein said data bus and said address bus are united in a multiplexed bus and a digital data exchange in said two channel electronic control system is provided by said multiple bus.