What are the three types of probes?
There are three types of space probes: interplanetary, orbiters, and landers.
What are the different types of probes generally used in ultrasonic inspection?
Probe Types and Their Usage
- Pencil Surface Probes. These are the probes normally used for surface crack detection, also known as High Frequency Eddy Current probes (HFEC).
- Surface Spot Probes.
- Ring/Encircling Probes.
- Bolt Hole Probes.
- Other Hole Inspection Probes.
- Large Diameter Rotating Scanner Probes.
- Notes.
- Special Probes.
What is probe in eddy current testing?
Eddy current testing is based on the physics phenomenon of electromagnetic induction. In an eddy current probe, an alternating current flows through a wire coil and generates an oscillating magnetic field. This in turn affects the movement of electrons in the coil by varying the electrical impedance of the coil.
Which type of probe is used to inspect solid products?
OD probes
OD probes are commonly used to inspect solid products, such as bars.
What is normal probe?
This product is used to inspect thickness and to measure flaws on bars, plates, castings, forgings and extrusions. Normal Probes is made using high quality raw material at vendor’s end.
How many types of probes are there?
There are three basic types of probe used in emergency and critical care point-of-care ultrasound: linear, curvilinear, and phased array. Linear (also sometimes called vascular) probes are generally high frequency, better for imaging superficial structures and vessels, and are also often called a vascular probe.
Where eddy current testing is used?
Applications. The two major applications of eddy current testing are surface inspection and tubing inspections. Surface inspection is used extensively in the aerospace industry, but also in the petrochemical industry. The technique is very sensitive and can detect tight cracks.
How many types of probes are used in CRO?
CRO probes can be classified into the following two types. Now, let us discuss about these two types of probes one by one.
What is Hfec inspection?
Inspection of Texture and Waviness The HFEC technique can be applied to dry, wet, and consolidated carbon-based materials. One major task of HFEC tests is the characterization of waves inside carbon fiber or consolidated materials. The image in Fig. 7 shows in-plane and out- of-plane waves perpendicular to each other.
Is the probe height of a bolt hole probe critical?
The probe height is not critical; however, in cases of limited access, special low-profile types are available where the test coil and balance coil sections of the probe are separated to further reduce the height of the probe. Bolt hole probes are designed to inspect the bore of holes after the fastener is removed.
What are low frequency bolt hole probes?
Low frequency bolt hole probes. Used inspect holes through bushings, low frequency coils are incorporated into the design of the probes. These probes use coils similar to those in the surface spot probes and typically are limited to larger diameter hole due to the larger coil size.
What type of probe is used for surface crack detection?
These are the probes normally used for surface crack detection, also known as High Frequency Eddy Current probes (HFEC). They have a small coil that can be made shielded or unshielded.
How to choose the right size probe for ferrous fasteners?
This is even more noticeable with ferrous fasteners, but permeability variations can also give problems. The probe internal diameter (ID) is the more important dimension, and should be chosen to be slightly bigger than the fastener head. The outside diameter (OD) is not normally critical but it should not overlap other fastener heads.