Calibration Board

Calibration board is used for intrinsic parameter check and hand-eye calibration. This chapter introduces the types, models, and mounting methods of calibration boards.

Calibration Board Types and Models

Mech-Mind provides three types of calibration boards:

BDB

For V2 and V3 cameras.

Model

Diagram

d (mm)

Row

Column

BDB-5

../../_images/calib_diagram_bdb.png

20

5

4

BDB-6

35

BDB-7

50

CGB

For V4 cameras.

Model

Diagram

d (mm)

Row

Column

CGB-020

../../_images/calib_diagram_cgb.png

20

5

4

CGB-035

35

CGB-050

50

OCB

OCB calibration boards have no mounting holes and therefore cannot be mounted on the last joint of the robot. It can be used only when the camera is mounted in the EIH mode.

Model

Diagram

d (mm)

Row

Column

OCB-005

../../_images/calib_diagram_ocb.png

5

9

11

OCB-010

10

OCB-020

20

Mount Calibration Board

For hand-eye calibration in the ETH mode, the calibration board should be mounted on the last joint of the robot. Common ways to mount the calibration board are shown below:

Direct mounting

Mounting through the flange adapter

../../_images/mount_calib_board.png
../../_images/mount_flange.png