What is the difference between optical sensor, 3D contact probe and laser sensor in vision measuring machine?
Sensors used on vision measuring machine mainly include optical Lens, 3D contact probes and laser probes. Each sensor has different functions and fields of application. The functions of these three probes are expanded as follows:
1. Optical Zoom Lens
The optical Zoom lens is the fundamental sensor used in the vision measuring machine. It utilizes optical lenses, industrial cameras, and other optical components to capture images and perform measurements.
Applications suitable for the optical Zoom Lens:
- Flat workpieces: Simple structures, lightweight, thin, and easily deformable workpieces.
2. Laser Sensor
The laser sensor employs laser technology for measurement. It typically consists of a laser emitter that emits laser beams and a receiver that detects the reflected laser signals.
Applications suitable for the laser sensor:
- Workpieces requiring high dimensional accuracy: The laser configuration enables highly precise measurements, making it suitable for non-contact and accurate dimensional measurements such as flatness, step height, and surface contour measurements. Examples include precision mechanical parts and molds.
- Rapid measurements: The laser configuration allows for fast non-contact measurements, making it suitable for high-efficiency and rapid measurements, such as automated measurements on production lines or large-scale full inspections.
3. 3D Contact Probe
The probe head is an optional head in the vision measuring machine and is mainly used for tactile measurements. It involves contacting the workpiece surface, triggering a signal, and collecting measurement data through the mechanical displacement of the probe mechanism.
Applications suitable for 3D Contact Probe:
- Complex structures or workpieces without deformation: Three-dimensional measurements are required, or measurements such as cylindrical, conical, spherical, groove width, etc., which cannot be achieved by optical or laser heads. Examples include molds or workpieces with intricate structures.
Note: The selection of a suitable configuration depends on the specific type of workpiece, measurement requirements, and application scenarios. In practice, multiple configurations may be combined to achieve comprehensive measurement needs.
Post time: Jul-18-2023