Tecnologías de tratamiento de efluentes líquidos

This method can be used for concrete, steel and masonry structures. The method is most commonly used on concrete and masonry structures.

A boroscope is used to look inside inaccessible or small voids. For example, if cable ducts are not injected, it is possible to inspect the strands by means of an endoscope through a contact drilling (here a drilled hole from the surface to the cable duct).

For steel structures the method is usually used for investigation of closed profiles to gain information regarding the condition of the interior surfaces of the closed profiles.

For masonry structures the boroscope can be used to gain information of the depth of the outer layer of bricks or natural stones and it can provide information of the filling material in between the arches. It may also be used to examine the mortar between bricks or natural stone.

The boroscope equipment includes a lighting source and a fibre optic cable to transfer the light to the boroscope.

A system of lenses enables the boroscope to be used as a monocular. A camera or video camera can also be mounted on the boroscope for photo documentation.

Generally speaking, the method is appropriate and may also be used for inspections of structural components such as expansion joints, honeycombs and cracks/slots.

The many variations and features which can be obtained for boroscopes make them an almost universal tool for internal inspections. These include a wide range of lengths and diameters, solid tubular or flexible bodies, lenses for forward, sideways or retro viewing, still and video camera attachments, and mains or battery power supplies.

4.7.1 Specification

Video Boroscope Remote High Resolution CCD camera is comprising of three items as below.

(i) Videoscope 3M 6MM dia

Industrial videoscope with diameter 6 mm, length 3m, tungsten sheet, deflection 150 degree (up/down) and 120 degree (right/ left), direction of view 0 degree, field of view 50 degree, consisting of VP06030AE Videoscope 3m x 6 mm dia, V0625WAE Interchangeable lens 0 degree, 80135A Carrying case

(ii) Interchangeable lens 90 degree

Interchangeable lens 90 degree, interchangeable lens for videoscope with 6 mm diameter. Direction of view 100 degree, depth of field 1 to 15 mm.

(iii)Portable Pack , PAL

consisting of 81040020 Portable pack base unit, PAL 81040030 Portable pack battery 81040031, Portable pack battery charger 81040040 Portable pack carrying strap 81040045 Support cover type 1 81040050 Support cover type 2 81040055 Portable pack soft carrying bag 88003001 C Compact – flash card 128 MB, 88002013 Card reader.

Portable Pack

24W Xenon light source, 6.4” TFT monitor, integrated battery with life of 2.5 hrs, 1GB CF card as standard for image recording

4.7.2 Operational Procedure :- Each company specifies the operational procedure. The operational procedure of KARL STORZ Borescope is given for information as below.

Insert video connector into the camera port of the camera control unit / the KARL STORZ TECHNO PACK.

Insert light connector into the light tapping point of the cold light projector / the KARL STORZ TECHNO PACK.

Turn on camera control unit / KARL STORZ TECHNO PACK, light source and monitor (if a separate monitor is used).

(ii) System Shutoff

Turn off monitor (if a separate monitor is used), light source and camera control unit / KARL STORZ TECHNO PACK.

Disconnect light connector from the light tapping point of the cold light projector / the KARL STORZ TECHNO PACK.

Disconnect video connector from the camera port of the camera control unit / the KARL STORZ TECHNO PACK.

(iii) White Balance

The white balance adjusts the colour reproduction of the system to match the colour temperature of cold light projector used. The white balance remains in memory after the base unit is turned off. When the system is started again , a new white balance must be set whenever a different light source or a different lamp or a different cable is used.

Point VIDEOSCOPE towards a white surface while the camera control unit is turned on. Ensure that no objects with other colour can be seen in the image section.

(iv) Press the white balance button ( blue function button on handpiece ) for a long time. If the white balance is correct, the screen display is briefly inverted. If this does not happen, the white balance was not completed correctly. Either too much or too little light was received. In this case, increase or, as the case may be, decrease the distance between the VIDEOSCOPE tip and the white surface. (v) Repeat the white balancing.

 Controlling the viewing direction

(vi) The viewing of the VIDEOSCOPE may be adjusted by deflecting the movable tip in four directions.

(vii) By rotating the larger of the two hand wheels on the handpiece, the movable tip of the VIDEOSCOPE is deflected downward or upward. The viewing direction that was set either downward or upward can be locked in with a locking lever between the large hand wheel and the handpiece.

(viii) By rotating the smaller of the left or right wheels on the handpiece, the movable tip of the VIDEOSCOPE is deflected to the left or right. The viewing direction

that was set either to the left or right can be locked in with the rotary dial on the small hand wheel.

4.7.3 List of suppliers :- The list is not exhaustive. Some of the suppliers are as below :- 1) M/s S.G. Marketing Pvt. Ltd., 15, Birbal Road, Jangpura xtn., New Delhi

110014

2) M/s NDT Technologies Pvt. Ltd., Plot No. 11, Sector 23, Turbhe, New Bombay 400705

3) M/s J.Mitra & Co. Pvt. Ltd., A 180-181, Okhla Industrial Area – I, New Delhi 110020

4) M/s KARL STORZ Endoscopy India Pvt. Ltd., C-126, Okhla Industrial Area Phase – I, New Delhi 110020.