Wednesday, March 27, 2013

Videoscope is Working in Water

See video demonstration of videoscope Rigel in water. Videoscope Rigel has water-prrof insertion probe with diameter 5.5 mm and articulation of tip. It is perfect for automotive, aviation, plumbing and other areas.
More details here

Thursday, March 21, 2013

Videoscope vs. Fiberscope. What is better?

Videoscopes versus Fiberscopes comparison
    Today there is a great variety of borescopes. Inspectors can choose between an optical or a video tool. But what advantages do videoscopes have? Why are they becoming more and more popular?   Video observation is preferred over optical inspection because video recording allows the inspector to see wider area at a greater distance or take advantage of the zoom capability as opposed to a limited, darker traditional flexible borescope optical image. They also help the specialist to avoid eye strain and test fatigue because they offer a more comfortable and natural work environment in front of a display engaging both eyes. In addition, the resolution is much higher and there are no moiré interference, mosaic dots of flexible image fiber bundle. 
  Videoscopes allow inspectors to record observation results. It is especially convenient when a subsequent review of findings is necessary. Modern computer processing enhances detail,  and performs an online image analysis.   Videoscope image is generated by CCD sensors and then transmitted via electrical wiring to recording and imaging hub. Generally light source is integrated with the camera at the probe tip. In most cases a light source consists of one or more LED bulbs. Heavy-duty professional and expensive models of videoscopes offer Metal Halide or Xenon light source built into the imaging hub. Such light sources have higher light intensity but more power consuming.Often inspectors are looking for a higher pixel resolution of CCD chip. However don't rely on pixel count only when evaluating performance: it is necessary to test CCD performance in each individual case using a resolution target.   
  Videoscopes are more energy-depending devices than optical fiberscopes, and this can sometimes be an obstacle. Optical fiberscopes generally don’t need powerful energy cells. Energy is provided only for light source and often it is a small LED light source-handle attached to the body of a fiberscope.   Video inspection devices are not as fragile as optical ones consisting of glass fiber bundle. Metal braiding helps to protect wiring and camera from damage.
  As you can see, videoscopes today are better choice for inspectors, technicians and other specialists in many industrial spheres. 
To learn more about videoscopes click here, to see some fiberscopes and their specifications go here.

Friday, March 8, 2013

What is a Borescope?

    A borescope is an inspection device with a rigid or flexible optical tube to insert into bores, pipes, holes and cavities for visual inspection. 
Borescopes are used in a wide range of industrial control and inspection applications. It consists of an objective lens in front of a long glass optic tube containing an image relay and an illumination relay. The relay tube can be rigid or flexible and is followed by a handpiece containing an eyepiece. 
Important specifications for borescopes include rigid or flexible image relay, working length, field of view (FOV), direction of view (DOV) and minimal focus distance. The image relay diameter is the diameter of probe for insertion into cavity. This diameter typically determines the minimum size hole the scope can be used within. The working length is the length of the probe.  The field of view is the viewing cone included in the viewing angle.  It is a measure of how much of the visual field is taken up by the image. The direction of view is the direction the axis of the viewing cone points, where zero degrees is straight ahead and 90 degrees is looking to the side. The minimal focus distance for the borescope is the minimum effective focusing distance.
Flexible borescopes tips may be bent back and forth using a control in the handpiece, which allows changes to view angle or navigation through paths that are not straight.  A two way articulated tip can be manipulated or "curled back".  Two-way implies single plane of articulation, as in only right-left or up-down.  A four way articulated tip can be manipulated or "curled back" in two plane articulation, as in both right-left and up-down.  Specifications for articulation range give the maximum angular articulation possible, measured from 0° as straight-ahead. It is important to know minimal bending radius. Repeated bending of a flexible borescope below the minimum bend radius will result in broken image and/or illumination fibers.
Looking for quality, yet affordable borescope? Shop here.