US 7,330,242 B2 · System for recording an object space · patentgrep

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Abstract

A system for recording an object space has a opto-electronic distance sensor which uses a signal propagation time method, and a transmitter for transmitting optical, signals, as well as a receiver (E) for receiving optical signals, reflected by objects located in the target space. The system comprises a scanner for deflecting optical axes of the transmitter and receiver (S and E). The optical axes of the transmitter and receiver (S and E) for example, are substantially parallel. An evaluation system determines distance values from the propagation time or phase position of the transmittal optical signals, and the space coordinates of the individual data elements result from the distance values and the beam deflection implemented by the scanner. The system comprises a rotary measurement head mounted on a pillow block, and a mirror system fixed relative to the measurement head, which deflects beams axially incident on the hollow shaft in the radial direction and vice versa. The radiation from stationary transmitter (S) can be introduced in the axial direction relative to the hollow shaft and can be transmitted in the radial direction through the mirror system. The radiation reflected by the targets located in the object space, can be deflected by the mirror system in the direction of the axis of the hollow shaft and be supplied to the receiver (E), which is also stationary.

Claims36

Dependent claims

An apparatus for recording an object space containing at least one object to be recorded, said apparatus comprising:

opto-electronic range finder means including
a transmitter unit for transmitting optical signals along an optical transmitter axis to be reflected by said object;
and
a receiver unit for receiving optical signals along an optical receiver axis after reflection by said object;
scanning means for deviating the optical axes of said transmitter and receiver units, said optical axes of the transmitter and receiver units extending substantially in parallel;
optical means for directing said optical transmitter signals towards said object and to direct said optical receiver signals to said receiver unit, said optical means including
means forming a pedestal,
hollow shaft means rotatably supported on said pedestal and defining an axis of rotation;
a measuring head on said hollow shaft means for directing said optical transmitter signals towards said object and to obtain said optical receiver signals;
mirror means arranged in a stationary fashion with respect to the measuring head, to deviate axially incident beams, in relation to the hollow shaft, in radial direction and vice-versa;
wherein radiation of the stationary transmitter unit is lead in axial direction, in relation to the hollow shaft, and is transmitted in radial direction by said mirror means, while said optical receiver signals reflected from said object are deviated by said mirror means in the direction of said axis of rotation of said hollow shaft to be directed to said receiver unit which is also stationary arranged;
and
an evaluation unit coupled to said range finder means to compare said optical transmitter signals and said optical receiver signals to determine distance values from said delay and to convert them into corresponding data elements, said evaluation unit being also coupled to said scanning means so as to determine spatial coordinates of said individual data elements and the beam deviation of the scanning device.

10 more elements

An apparatus for recording the cavity of a vessel for an aggressive liquid, said apparatus comprising:

opto-electronic range finder means including
a transmitter unit for transmitting optical signals along an optical transmitter axis to be reflected by said object;
and
a receiver unit for receiving optical signals along an optical receiver axis after reflection by said object;
scanning means for deviating the optical axes of said transmitter and receiver units, said optical axes of the transmitter and receiver units extending substantially in parallel;
optical means for directing said optical transmitter signals towards said object and to direct said optical receiver signals to said receiver unit, said optical means including
means forming a pedestal;
hollow shaft means rotatably supported on said pedestal and defining an axis of rotation, said hollow shaft means being introduced into said vessel;
a measuring head on said hollow shaft means for directing said optical transmitter signals towards said object and to obtain said optical receiver signals, while rotated by said hollow shaft means within said vessel;
mirror means arranged in a stationary fashion with respect to the measuring head, to deviate axially incident beams, in relation to the hollow shaft, in radial direction and vice-versa;
wherein radiation of the stationary transmitter unit is lead in axial direction, in relation to the hollow shaft, and is transmitted in radial direction by said mirror means, while said optical receiver signals reflected from said object are deviated by said mirror means in the direction of said axis of rotation of said hollow shaft to be directed to said receiver unit which is also stationary arranged;
an evaluation unit coupled to said range finder means to compare said optical transmitter signals and said optical receiver signals to determine distance values from said delay and to convert them into corresponding data elements, said evaluation unit being also coupled to said scanning means so as to determine spatial coordinates of said individual data elements and the beam deviation of the scanning device.

9 more elements

An apparatus for recording an object space containing at least one object to be recorded, said apparatus comprising:

opto-electronic range finder means including
a transmitter unit for transmitting optical signals along an optical transmitter axis to be reflected by said object;
and
a receiver unit for receiving optical signals along an optical receiver axis after reflection by said object;
scanning means for deviating the optical axes of said transmitter and receiver units, said optical axes of the transmitter and receiver units extending substantially in parallel;
optical means for directing said optical transmitter signals towards said object and to direct said optical receiver signals to said receiver unit, said optical means including
means forming a pedestal having a predetermined outer pedestal contour,
hollow shaft means rotatably supported on said pedestal and defining an axis of rotation;
a measuring head on said hollow shaft means for directing said optical transmitter signals towards said object and to obtain said optical receiver signals, said measuring head having a predetermined outer head contour;
mirror means arranged in a stationary fashion with respect to the measuring head, to deviate axially incident beams, in relation to the hollow shaft, in radial direction and vice-versa;
wherein radiation of the stationary transmitter unit is lead in axial direction, in relation to the hollow shaft, and is transmitted in radial direction by said mirror means, while said optical receiver signals reflected from said object are deviated by said mirror means in the direction of said axis of rotation of said hollow shaft to be directed to said receiver unit which is also stationary arranged;
means forming a turntable pivotal about a pivoting axis extending perpendicularly to said axis of rotation, said pedestal being mounted on said turntable means;
and
an evaluation unit coupled to said range finder means to compare said optical transmitter signals and said optical receiver signals to determine distance values from said delay and to convert them into corresponding data elements, said evaluation unit being also coupled to said scanning means so as to determine spatial coordinates of said individual data elements and the beam deviation of the scanning device.

11 more elements

An apparatus for recording an object space containing at least one object to be recorded, said apparatus comprising:

opto-electronic range finder means including
a transmitter unit for transmitting optical signals along an optical transmitter axis to be reflected by said object;
and
a receiver unit for receiving optical signals along an optical receiver axis after reflection by said object;
scanning means for deviating the optical axes of said transmitter and receiver units, said optical axes of the transmitter and receiver units extending substantially in parallel;
optical means for directing said optical transmitter signals towards said object and to direct said optical receiver signals to said receiver unit, said optical means including
means forming a pedestal having a predetermined outer pedestal contour, hollow shaft means rotatably supported on said pedestal and defining an axis of rotation;
a measuring head on said hollow shaft means for directing said optical transmitter signals towards said object and to obtain said optical receiver signals, said measuring head having a predetermined outer head contour;
mirror means arranged in a stationary fashion with respect to the measuring head, to deviate axially incident beams, in relation to the hollow shaft, in radial direction and vice-versa;
wherein radiation of the stationary transmitter unit is lead in axial direction, in relation to the hollow shaft, and is transmitted in radial direction by said mirror means, while said optical receiver signals reflected from said object are deviated by said mirror means in the direction of said axis of rotation of said hollow shaft to be directed to said receiver unit which is also stationary arranged;
means forming a turntable pivotal about a pivoting axis extending perpendicularly to said axis of rotation, said pedestal being mounted on said turntable means;
tubular support means extending along a longitudinal axis, said turntable means being mounted on said tubular support means, wherein said pivoting axis is oriented in the same direction as that of said longitudinal axis;
and
an evaluation unit coupled to said range finder means to compare said optical transmitter signals and said optical receiver signals to determine distance values from said delay and to convert them into corresponding data elements, said evaluation unit being also coupled to said scanning means so as to determine spatial coordinates of said individual data elements and the beam deviation of the scanning device.

11 more elements

An apparatus for recording an object space containing at least one object to be recorded, said apparatus comprising:

opto-electronic range finder means including
a transmitter unit for transmitting optical signals along an optical transmitter axis to be reflected by said object;
and
a receiver unit for receiving optical signals along an optical receiver axis after reflection by said object;
scanning means for deviating the optical axes of said transmitter and receiver units, said optical axes of the transmitter and receiver units extending substantially in parallel;
optical means for directing said optical transmitter signals towards said object and to direct said optical receiver signals to said receiver unit, said optical means including
means forming a pedestal,
hollow shaft means rotatably supported on said pedestal and defining an axis of rotation;
a measuring head on said hollow shaft means for directing said optical transmitter signals towards said object and to obtain said optical receiver signals;
mirror means arranged in a stationary fashion with respect to the measuring head, to deviate axially incident beams, in relation to the hollow shaft, in radial direction and vice-versa;
wherein radiation of the stationary transmitter unit is lead in axial direction, in relation to the hollow shaft, and is transmitted in radial direction by said mirror means, while said optical receiver signals reflected from said object are deviated by said mirror means in the direction of said axis of rotation of said hollow shaft to be directed to said receiver unit which is also stationary arranged;
an evaluation unit coupled to said range finder means to compare said optical transmitter signals and said optical receiver signals to determine distance values from said delay and to convert them into corresponding data elements, said evaluation unit being also coupled to said scanning means so as to determine spatial coordinates of said individual data elements and the beam deviation of the scanning device;
and
a cooling arrangement for at least part of said optical means including said pedestal.

11 more elements

An apparatus for recording an object space containing at least one object to be recorded, said apparatus comprising:

opto-electronic range finder means including
a transmitter unit for transmitting optical signals along an optical transmitter axis to be reflected by said object;
and
a receiver unit for receiving optical signals along an optical receiver axis after reflection by said object;
scanning means for deviating the optical axes of said transmitter and receiver units, said optical axes of the transmitter and receiver units extending substantially in parallel;
optical means for directing said optical transmitter signals towards said object and to direct said optical receiver signals to said receiver unit, said optical means including
means forming a pedestal,
hollow shaft means rotatably supported on said pedestal and defining an axis of rotation;
a measuring head on said hollow shaft means for directing said optical transmitter signals towards said object and to obtain said optical receiver signals;
mirror means arranged in a stationary fashion with respect to the measuring head, to deviate axially incident beams, in relation to the hollow shaft, in radial direction and vice-versa;
wherein radiation of the stationary transmitter unit is lead in axial direction, in relation to the hollow shaft, and is transmitted in radial direction by said mirror means, while said optical receiver signals reflected from said object are deviated by said mirror means in the direction of said axis of rotation of said hollow shaft to be directed to said receiver unit which is also stationary arranged;
an evaluation unit coupled to said range finder means to compare said optical transmitter signals and said optical receiver signals to determine distance values from said delay and to convert them into corresponding data elements, said evaluation unit being also coupled to said scanning means so as to determine spatial coordinates of said individual data elements and the beam deviation of the scanning device;
and
thermal insulating means for insulating at least one of a tubular support means and said optical means including said pedestal.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/437,645Filed 22 May 2006 · continuation
Priority: AT A 1877/200321 Nov 2003
Published: US 2007/0058154 A115 Mar 2007
Granted: 12 Feb 2008
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

Family

PCT/IB2004/003765Parent of this continuation · filed 15 Nov 2004
US 2007/0058154 A1Pre-grant publication · published 15 Mar 2007
US 7,330,242 B2This patent

From the US filing history. Foreign family members aren’t listed.

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