Logo Allmyblog
Logo Allmyblog
Lien de l'article    


Contacter l'auteur de ce blog

- Mobile Phone Testing
- Led Lamps Have Been Developed To Replace Conventional Incandescent
- Industrial Directory
- How Exactly Does Circuit Board Operate
- Get A Lucrative Carrier In Medical

<< Janvier >>

Ajouter aapcbonline à vos favoris

- rigid flex pcb
- Prototype PCB
- Rigid-flex PCB
- Flexible PCB
- Multilayer PCB
 Mobile Phone Testing Alerter l'administrateur Recommander à un ami Lien de l'article 

Mobile Phone Testing
The mobile device testing as well as mobile phone testing is in huge demand now. In today's world, you have a number of choices to make what device should your application use, what operating system, what networks will be relied on? Moreover, the list only keeps growing. Why not make things simpler?

Mobiquesta�s Mobile Test Centre offers mobile application and testing services to simplify the testing needs of applications developers, service providers and handset manufacturers.

Mobile Test Centre offers in-lab and in field testing services in whole of Asia Pacific for top handsets and major operators. Some common mobile phone testing process mentioned below.

Test Assembled PCB

Ita�?s related to mobile phone PCB test before or after its production. PCB errors, passive wrong value component, defective or missing components can be detected in this way. The test mainly works with the following parameters

> Gain Response
> Frequency Response
> Noise
> DTMF coding
> Distortion

Final Sound Testing

For auditory testing of microphones and speakers of mobile phones, rapid Test is the best choice. The optional Buzz and Rub detection make sure a cent percent relation to the human ear, so test making by human operators is superfluous. It is the main as well as first solution to conduct an automated quality test, which is dependable to the manufactures. Phantom power supply is included for the microphone measurement in the system. The acoustic testing is an important phase of mobile testing; go through the following common measurements PCB Prototype Manufacturer.

> Sound Pressure Level (SPL)
> Buzz & Rub of transducers
> Rating Loudness
> Frequency Response
> Microphone sensitivity

Testing of Ring

Rapid Test detects the frequency and level of ring tones and surprisingly it works for narrow bands. It calculate the absolute SPL and gauge microphone by M2010 and NTTs a� respectively. No need to use power supply or external amplifier as microphone can be connected with RT-2M directly.

Alert Vibration Testing

A vibration sensor (NTI accessory) with RT-2M together detects the vibra call activator function Rigid flex PCB. The vibration energy and frequency takes 500 ms to measure. Conversion into acceleration or RPM can be easily calculated directly.

Analysis DTMF Keypad

DTMF fully supported by RT-2M.DTMF is used for telephone frequency dialing.
Related Links

  Lire le commentaire | Ecrire un nouveau commentaire Posté le 10-10-2016 à 08h34

 Led Lamps Have Been Developed To Replace Conventional Incandescent Alerter l'administrateur Recommander à un ami Lien de l'article 

Led Lamps Have Been Developed To Replace Conventional Incandescent
The present invention solves the aforementioned problems by providing an LED tube light with a clear bottom base.

The present invention relates to the design of a light emitting diode (LED) tube light (LTL) with a see-through bottom, and more particularly to an improved LTL that overcomes the difficulty of identifying appropriate cut locations thereon.

LED lamps have been developed to replace conventional incandescent or fluorescent lamps for reducing electrical and maintenance costs, and for increasing reliability Prototype PCB. LED lamps consume less electrical energy than conventional lamps whileexhibiting much longer lifetimes. Such LED lamps typically include a power supply and a plurality of LEDs mounted on a flat or curved surface.

In the case of LED border tubes, a few LED emitters are generally laid out on a printed circuit board (PCB). While the LED emitters provide adequate illumination on the front cover of the tube, circuitry on the PCB provides the LTL withelectrical control. The PCB is typically inserted into an enclosed tube and laid on the bottom base (or back cover) of the enclosure. Most PCBs are constructed to have safe cut locations where the PCB can be cut or severed (to reduce the length of thePCB) without damaging any critical circuitry thereon. The back of the PCB, for example, could have marks made for position identification purposes.

The LED tube light of the present invention includes a printed circuit board comprising a plurality of LEDs Rigid flex PCB, a plurality of markings on the printed circuit board, wherein these markings identify safe-cut locations for the LED tube light, and anenclosed tube comprising a clear bottom base.

The tube is often made of plastic materials such as Acrylonitrile Butadine Styrene (ABS), Acrylonitrile Styrene Acrylate (ASA), Polystyrene (PS), polycarbonate (PC) etc., wherein the tube front surface is often colored to match the desireddisplay color of the tube. The whole tube is often non-clear, especially when the front cover surface is not a clear one, although some tubes are clear and colorless but do not provide safe cut locations on the PCB that will avoid damage of criticalcircuits. And although tubes are usually a one-piece enclosure, some tubes are enclosures comprising multiple pieces.

Current LTLs, however, are limited when physical modifications, such as shortening tube length, are required. This difficulty stems primarily from a lack of PCB visibility in the design of traditional LTLs (i.e., LTL designs with colored tubesand non-see-through bottoms) which makes it difficult to locate safe-cut markings on the PCB, especially when the tube light is not turned on. Shortening tube length of traditional LTLs, thus requires markings to be made on the exterior of the LTL. However, because these markings must be made manually, careful measurement is required to ensure the security of the components inside the tube when the LTL is actually severed. Accordingly, there is a need for an LTL with a clear bottom base whichprovides see-though capability to facilitate a safe cutting of the tube without damaging the circuits therein.

Another aspect of the present invention is a method for manufacturing an LED tube light. This method includes inserting a printed circuit board within an LED tube light, wherein the LED tube light comprises a clear bottom base, and marking aplurality of locations on the printed circuit board, wherein the markings identify safe-cut locations for the LED tube light.

Related Links

  Aucun commentaire | Ecrire un nouveau commentaire Posté le 07-10-2016 à 09h17

 Industrial Directory Alerter l'administrateur Recommander à un ami Lien de l'article 

Industrial Directory
An industrial directory cannot but be a substantial volume. Industry is defined as production of goods and the variety of goods are bewilderingly large. A directory can claim to be an industrial directory only if it covers all major sectors.

Speaking of sectors, NAICS - North American Industry Classification System - classifies economic activity in United States, Canada and Mexico. We look at this system in the next section.


NAICS has allotted a sector number to each sector (listed in the first column below).

11 Agriculture, Forestry, Fishing and Hunting

21 Mining

22 Utilities

23 Construction

31-33 Manufacturing

42 Wholesale Trade

44-45 Retail Trade

48-49 Transportation and Warehousing

51 Information

52 Finance and Insurance

53 Real Estate and Rental and Leasing

54 Professional, Scientific, and Technical Services

55 Management of Companies and Enterprises

56 Administrative and Support and Waste Management and Remediation Services

61 Education Services

62 Health Care and Social Assistance

71 Arts, Entertainment, and Recreation

72 Accommodation and Food Services

81 Other Services (except Public Administration)

92 Public Administration

Each of these sectors is subdivided into sub-sectors by using additional digits in the sector number, as illustrated below:

32 Manufacturing

326 Plastics and Rubber Products Manufacturing

3261 Plastics Product Manufacturing

32611 Plastics Packaging Materials and Unlaminated Film and Sheet Manufacturing

326111 Plastics Bag and Pouch Manufacturing

326112 Plastics Packaging Film and Sheet (including Laminated) Manufacturing

You would notice that even under the lowest classifications, such as Plastic Bag and Pouch above, there could be several specialized activities Prototype PCB. A detailed and complete list of industries would thus be a very big list indeed.

We take a look at some sample categories in a reputed industrial directory in the section below.

Industrial Directories

Adhesives & Sealants Adhesives, Adhesive Tapes, Pressure Sensitive Tapes, Tapes, Adhesive Dispensing Equipment, more...

Automation & Electronics Automation Equipment, Printed Circuit Boards (PCB), Electronic Enclosures, Clean rooms, EMI/RFI Shielding, more...

Chemicals Coatings Rigid flex PCB, Corrosion Resistant Coatings, Desiccants, Optical Coatings, Teflon Coatings, more...

Custom Manufacturing & Fabricating Metal Fabrication, CNC Machining, Metal Stampings, Screw Machine Products & Turned Parts, Tube Fabricating & Bending Services, more...

Electrical & Power Generation Transformers, Batteries, Magnets, Custom Transformers, Neodymium Magnets, more...

(Source: http://www.ronpcb.com )

We have not included several more major categories in the partial list above. As you see from the extract above, the sub-categories are large enough for this industrial directory to take recourse to "more..." when listing the sub-categories.

Regional Directories

Industrial development is a major policy objective of all countries, and regions within countries. And you would find regional industrial directories not only for developed countries for also for developing economies.


Industry is a very broad field and an industrial directory would have to cover many major sectors and numerous sub-sectors to be worthy of its name. Governments have tried to implement meaningful classifications and sub-classifications of industrial sectors, to facilitate data gathering and other purposes. In the case of industrial directories, there is a proliferation of regional directories as each region seeks to publicize its industrial capabilities and seek more business.
Related Links

  Aucun commentaire | Ecrire un nouveau commentaire Posté le 06-10-2016 à 09h02

 How Exactly Does Circuit Board Operate Alerter l'administrateur Recommander à un ami Lien de l'article 

How Exactly Does Circuit Board Operate?
The Printed Circuit Board, or PCB, has revolutionized the electronics industry. Developed in the 1930s, it has arrive to be utilised in every single possible digital gadget. This post describes the value of these boards, and examines their benefits and producing options.

Why Use A PCB? What Can It Be Employed For?

Ahead of delving into the details, it really is critical for you to know the attainable applications of Printed circuit boards, and why you should use them (i.e., what their positive aspects are).

What can you use them for? Absolutely every thing! There's practically no digital device that can't be constructed making use of PCBs. Battery-operated toys, mobile phones, audio players, TVs, personal computers, automobiles, aircraft - practically anything that makes use of some type of electronics, makes use of them.

Whether you're a hobbyist building a toy, a university student doing science-undertaking, or an appliance-maker developing millions of devices, the use of printed boards provide benefits Prototype PCB.

To begin with, a PCB is much more compact than other kinds of circuits. Its decreased size is an incredibly essential aspect to its general creation procedure. In addition, a printed circuit significantly reduces the need to have for wires. This improves the physical appearance of the closing circuit and enhances longevity. For mass-producers ordering in significant production, it is the least expensive technique, offering massive price positive aspects.

What are the Important Layout Issues when generating a PCB?

There Are Three Main Components:

* A laminate board.
* The factors mounted on the board.
* Traces that provide as the "wires" connecting components and forming the circuit.

The actual components employed count completely on the goal of circuit. Examining which factors to use is finest dealt in an encyclopedia collection. This leaves laminate boards and traces. Creation fees, functioning performance and working cost of the completed circuit, all count on these elements.

Of the several supplies employed for the boards, 6 are the most broadly created: FR-1, FR-2, FR-three, FR-4, CEM-1 and CEM-three. "FR" stands for "flame retardant". FR 1, 2 and three are primarily the exact same, with only slight variations in properties. They are not suited for creating multilayer boards. The same is true for CEM-one.

FR-4 and CEM-three are two laminates that can be utilized for multilayer boards. Of the two, FR-4 is far more broadly made, and therefore is less costly. It can be utilised for single and multilayer boards, and has outstanding thermal tolerance up to 130??C.

Copper is the most frequently utilised material for traces. Easy strategies involve plating the total board with copper, and then etching away pointless locations by way of a mask (stencil) to leave the necessary traces. More complex techniques allow traces to be extra on to a bare board. Every single technique has linked professionals and disadvantages.

Some boards demand the use of gold for delicate, low-voltage apps or direct-no cost (RoHS) compliance. Copper traces normally requirement the use of a nickel barrier layer just before gold-plating. This is to prevent gold from migrating into the copper. Indiscriminate use of nickel can end result in massive losses to impedance.

If you want to develop a custom made PCB, it really is recommended that you 1st commit a little time knowing the essentials of PCB layout. There are a number of comprehensive guides and tutorials. Also, layout and simulation software are accessible to support you check your layout prior to you make a PCB Prototype.

Paul Eisler is the fantastic mind driving the creation of printed circuit board models. Paul was a resident of Austria and was successful in planning the printed circuit board in the mid 1930's. His initial layout was use for radio sets. Businesses had been laggards when it came to accepting the printed circuit board styles in their digital manufacturing process.The breakthrough of his invention only grew to become common in the 1940's when makers in the United States had been produced common with it and realized the possible of the design and style. This printed circuit board style proved to be quite useful for the United States military, when the experts in the armed forces realised its prospective and manufactured comprehensive use of it in creating radio sets for commandos Rigid flex PCB. Only immediately after firms saw that the military manufactured large use of these boards, did they begin generating use of these in their production as nicely.

Point to position construction was used ahead of the printed circuit board design was launched to technological innovation. The progression of engineering has introduced about a number of modifications to the way electronic devices were made. Previously, hole development was utilised by technicians in the developing of consumer electronics. This approach required all electronic tools
Related Links

  Aucun commentaire | Ecrire un nouveau commentaire Posté le 29-09-2016 à 10h12

 Get A Lucrative Carrier In Medical Alerter l'administrateur Recommander à un ami Lien de l'article 

Get A Lucrative Carrier In Medical By Perusing B. Pharma Degree
As India is developing country with a huge population. The chances of the disease are high here. These conditions act as a curse for the weak and the poor. But with advances in medical science most diseases have been controlled with the help of high powerful antibiotics and other life-saving drugs. This is where pharmacy steps to fill the void. The complexity of drug therapy and the dangers of drug abuse have highlighted the need for special skills of pharmacists to maintain a rational approach in the field of drug treatments. If a student wants to start a career in pharmacy China Prototype PCB, then he / she have to apply for B. Pharma (BA) or D. Pharma (Diploma) course just after 10 +2 exams. Students with Physics, Chemistry, Biology (PCB) and Physics, Chemistry, Mathematics (PCM) combinations can apply for this course. The Diploma is two years and the degree is four years. After graduation you can also do master degree after completion of graduation.

Entrance Examinations and Eligibility Criteria: entrance examinations for courses B. Pharma are conducted at the state and the minimum marks that an applicant must meet to be able to sit for these exams is 50% with PCM or PCB (Senior Secondary). Students belonging to the fee SC / ST and OBC must have at least 45% marks in 10 +2 examination. Some of the entrance exams for B. Pharma are:

a�Centralized Admission Committee Joint Entrance Test (CENTAC JET)
a�Bihar Combined Entrance Competitive Examination (BCECE)
a�Guru Gobind Singh Indraprastha University CET
a�Graduate Pharmacy Aptitude Test (GPAT)
a�Engineering Rigid flex PCB, Agriculture and Medical Common Entrance Test (EAMCET)

Are you looking for best B. Pharma colleges in Noida (http://www.ronpcb.com)? If your answer is a�yesa� then you can try the below colleges:-

a�IIMT College of Pharmacy,
a�Innovative College of Pharmacy,
a�HIMT College of Pharmacy,
a�IILM Academy of Higher Learning,
a�Vishveshwarya Institute of Medical Sciences,
a�RV Northland Institute,
a�Llyod Institute of Management & Technology,
a�Noida Institute of Engineering & Technology,
a�Ram Eesh Institute of Vocational and Technical Education,
a�IEC College of Engineering & Technology

Some of the top level Universities, Institutions and Colleges in India are:

a�IES College of Pharmacy - Bhopal
a�Oriental College of Pharmacy & Research, Indore
a�NSHM College of Pharmaceutical Technology - Kolkata
a�Aditya College of Pharmacy & Science - New Delhi
a�MET Institute of Pharmacy - Mumbai
a�M.S. Ramaiah College of Pharmacy - Bangalore
a�Jaipur National University - Jaipur
a�Government College of Pharmacy - Shimla
a�Sri Venkateshwara College of Pharmacy - Hyderabad
a�L. J. Institute of Pharmacy and Research Center - Ahmedabad
a�National College of Pharmacy - Kozhikode
a�School of Pharmaceutical sciences (SPS) - Bhubaneshwar

What are the futures of this courses / - After completion of the degree in the course B. Pharma, a student can also go for master degree and he can hold jobs like:

a�Research Officers
a�Drug Therapists
a�Drug/Chemical Technicians
a�Hospital Drug Coordinators
a�Drug Inspectors

Related Links

  Aucun commentaire | Ecrire un nouveau commentaire Posté le 28-09-2016 à 08h57

|<< | 1 |  2   3   4   5   6   7   8   9   10   11   12  >>> >>|

Fil RSS 2.0
Ajouter à NetVibes
Ajouter à Google
Ajouter à Yahoo
Ajouter à Bloglines
Ajouter à Technorati

Allzic en direct

Liens Commerciaux
L'information à Lyon
Retrouvez toute l'actu lyonnaise 24/24h 7/7j !

L'information à Annecy
Retrouvez toute l'actu d'Annecy 24/24h 7/7j !

L'information à Grenoble
Retrouvez toute l'actu de Grenoble 24/24h 7/7j !

Application Restaurant
Restaurateurs, demandez un devis pour votre application iPhone

Fete des Lumières
Fête des lumières : vente de luminaires, lampes, ampoules, etc.

Votre publicité ici ?
  Blog créé le 12-01-2016 à 09h45 | Mis à jour le 10-10-2016 à 08h34 | Note : Pas de note