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Luoyang QIBR Bearing Co.,LtdCall us : +86 − −(0379)63968877 // Email us : [email protected]
Luoyang QIBR Bearing Co.,LtdCall us : +86 − −(0379)63968877 // Email us : [email protected]
x The power generation companies are able to purchase generators at a lower price But this initial investment saving can disappear in a few days of an outage involving $100 000 to $1 000 000 per day in lost-generation charges x The OEMs can become faced
2015/5/1For the failure analysis the leaking copper tube was pressure tested once more after the removal of the aluminum fins When a tube section pressurized with air at 6 bar was immersed in water very small air bubbles could be seen raising from the leakage points
Root cause failure analysis is the process of examining a failed sample along with the operating and environmental information to determine the fundamental cause of the failure During the failure analysis various tests may be conducted on the failed sample on pieces of nearby unfaulted cable or on accessories removed from adjacent un-failed phases
There is an excellent chance of tube life increase for a near-continuously operated high-quality 3-500Z tube on steady carrier or off-on keyed modes The best candidates for increased life though minimal filament voltage are obviously conservatively operated FM or CW transmitters
Life-cycle tests are run to evaluate and predict reliability and durability of a product using accelerated stress conditions for each life-cycle phase A life-cycle test can be performed using a success-run or test-to-failure approach and results can identify design
An X-ray generator generally contains an X-ray tube to produce the X-rays Possibly radioisotopes can also be used to generate X-rays An X-ray tube is a simple vacuum tube that contains a cathode which directs a stream of electrons into a vacuum and an anode which collects the electrons and is made of tungsten to evacuate the heat generated by the collision
2013/1/1Moreover this grade of brass alloy exhibits also a considerable susceptibility in stress-corrosion-cracking (SCC) which constitutes a common in-service failure mechanism The substitution of the present material with an alternative brass alloy such as the DZR (Dezincification Resistant) CuZn36Pb2As alloy will increase the dezincification resistance and reduce the SCC sensitivity
BTW scratches in the CRT have absolutely no effect on X-ray emission X-rays are blocked long before they come anywhere near the surface and glass has very little effect on their direction Any scratch deep enough to have any detectable effect on X-ray emission (actually it would need to be an inch deep gouge) would have caused the tube to implode
Penelope Allisy-Roberts OBE FIPEM FInstP Jerry Williams MSc FIPEM in Farr's Physics for Medical Imaging (Second Edition) 20087 2 1 X-ray tube The X-ray tube is mounted with its anode–cathode axis parallel to the axis of rotation of the scanner This is so as to minimize the influence of the anode heel effect because the size of the beam parallel to the axis of rotation (the z-axis) is no
The three-limb core-type three-phase transformer is the most common method of three-phase transformer construction allowing the phases to be magnetically linked Flux of each limb uses the other two limbs for its return path with the three magnetic flux's in the core generated by the line voltages differing in time-phase by 120 degrees
2011/9/1SEM microfractography performed by means of secondary electron imaging revealed the main topographic features of fatigue and the associated failure modes The fracture surface consists mainly of two major areas: the fatigue zone or crack propagation zone
There is an excellent chance of tube life increase for a near-continuously operated high-quality 3-500Z tube on steady carrier or off-on keyed modes The best candidates for increased life though minimal filament voltage are obviously conservatively operated FM or CW transmitters
2010/5/25X-ray photons are generated within a specialized X-ray tube mounted on a rotating gantry which pass through the patient's body and are detected by fixed rows of detector arrays thus producing images of coronary arteries in seconds after the patient is scanned
2019/9/19X-ray control means a device which controls input power to the x-ray high-voltage generator and/or the x-ray tube It includes equipment such as timers phototimers automatic brightness stabilizers and similar devices which control the technique factors of an x-ray exposure
2020/7/1Failure modes on these units are actually quite few The HT power supply can fail so you get no anode acceleration voltage You appear to be OK on that front as 11kV sounds healthy to me The tube can crack (due to impact) or just leak at a sealing point and lose
There is an excellent chance of tube life increase for a near-continuously operated high-quality 3-500Z tube on steady carrier or off-on keyed modes The best candidates for increased life though minimal filament voltage are obviously conservatively operated FM or CW transmitters
Where again V L is the line-to-line voltage and V P is the phase-to-neutral voltage on either the primary or the secondary side Other possible connections for three phase transformers are star-delta Yd where the primary winding is star-connected and the secondary is delta-connected or delta-star Dy with a delta-connected primary and a star-connected secondary
1993/1/1A schematic diagram of this is shown in Fig 3 The X-ray tube has a maximum load of 30kV and 8mA and Table 2 Silicon nitride X-ray stress-measurement parameters Characteristic X-ray Cr-K~ Diffraction plane (321) Diffraction angle 125 54~' Irradiation area
X-Ray Equipment A 1 % change in the filament voltage of an X-Ray tube will produce an 8% change in the anode current When used at its maximum rating an X-Ray tube will be permanently damaged in the case of a 5% volt rise Magnetic Equipment A 10% volt
1993/1/1A schematic diagram of this is shown in Fig 3 The X-ray tube has a maximum load of 30kV and 8mA and Table 2 Silicon nitride X-ray stress-measurement parameters Characteristic X-ray Cr-K~ Diffraction plane (321) Diffraction angle 125 54~' Irradiation area
Abnormal X-ray tube HV Cause: Unspecified operations may lead to too high tube voltage and current When it goes far enough the discharge even damage may occur After other possible causes have been ruled out abnormal X-ray tube HV may be the reason
2020/7/31X-Ray Assembler Each year the FDA receives several hundred thousand medical device reports (MDRs) of suspected device-associated deaths serious injuries and malfunctions The FDA uses MDRs to monitor device performance detect potential device-related safety issues and contribute to benefit-risk assessments of these products
I fix x-ray equipment and here is the connector that fits into the x-ray tube It carries up to 150kV and maybe 500mA during exposure My boss tells me if I see some black carbon deposit on the $begingroup$ I'm not sure where you are saying the carbon is appearing - within the X-ray device or within its associated cabling/connectors
I fix x-ray equipment and here is the connector that fits into the x-ray tube It carries up to 150kV and maybe 500mA during exposure My boss tells me if I see some black carbon deposit on the $begingroup$ I'm not sure where you are saying the carbon is appearing - within the X-ray device or within its associated cabling/connectors
This capability has been utilized in several of Spellman's MONOBLOCK designs where a power supply and an X-ray tube assembly have been integrated into a single unit The results of this integration include a reduction of the size and weight of a unit in addition to providing excellent heat transfer characteristics and eliminating costly high voltage cables and connectors
This page lists all of the combat aircraft used in World War 2 including fighter bomber and transport types Also included are prototypes and conceptual types that never saw the light of day Compared to World War 1 (1914-1918) World War 2 set the standard for
18 Electronic Device Failure Analysis EDFAAO (2014) 2:18-23 1537-0755/$19 00 ASM International Tantalum Capacitor FA An Overview of Failure Analysis of Tantalum Capacitors Javaid Qazi Kemet Electronics javaidqazikemet Introduction A
The most common failure modes are cracked or punctured vacuum windows and end-of -life cathodes that produce low emission internal gun arcing and gas bursts [4] A more robust window desi gn could lead to increased 5045 lifetime in the future C-BAND
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