豆知识 2011-07-24&07-30 无线信号发生器的发展史

 It starts with a blip, a beep, a noise, a pattern, a signal. It could be anything - ink on paper, machine data, or even the words flowing through your minds right now. 

 

 

 

Signal generators² play an important role in testing devices we use every day. The grandfather of them all was developed by HP's very own Bill Hewlett in 1939, as the very first audio oscillator, which soon became the company's first product, the HP 200A. Their first customer: Disney Studios. Over the next 70 years, the industry has churned out similar devices, each one a little more complex than the previous. 

 

 

 

Why? Because just like Disney movies, our technologies are becoming more intricate, complex, and evolved. The technology that drives devices, like cell phones to medical equipment, is rapidly developing, making the signals they transmit and receive more information saturated³ and action packed. 

 

 

 

You might even be surprised by some of the everyday products you use that a signal generator¹ plays a role in. Inventors and product development gurus can dream up extraordinary performances for new gizmos and gadgets⁴, but at some point, they have to make sure their ideas can turn into reality. 

 

 

 

That's where Agilent comes in. Agilent lives, eats, and breathes signals. And their quality products and customer satisfaction really speak to the company's passion. Agilent has played an important role in guaranteeing that products we use every day, like cars and cell phones, even the mouse in your computer, aren't going to fail us. 

 

 

 

The new Agilent 33-500 Series Function Generator does just that, by creating signals in a new and improved way. Here's just a glance at four reasons why Agilent's newest signal generator can help your company: better signal fidelity⁵, purity, and dramatically more affordable⁶, and ability to generate and tinker with signals. 

 

 

 

The bottom line? Agilent can offer a function generator that operates at incredibly high performance, for incredibly low cost. Signals can come in many shapes, sizes, and frequency. Let's face it, it can be pretty overwhelming, but thanks to companies like Agilent, we won't have to worry about getting any signals crossed anymore.

1 generator   

n.发电机，发生器

参考例句：

• All the while the giant generator poured out its power.巨大的发电机一刻不停地发出电力。
• This is an alternating current generator.这是一台交流发电机。

2 generators   

n.发电机，发生器( generator的名词复数 )；电力公司

参考例句：

• The factory's emergency generators were used during the power cut. 工厂应急发电机在停电期间用上了。
• Power can be fed from wind generators into the electricity grid system. 电力可以从风力发电机流入输电网。 来自《简明英汉词典》

3 saturated   

a.饱和的，充满的

参考例句：

• The continuous rain had saturated the soil. 连绵不断的雨把土地淋了个透。
• a saturated solution of sodium chloride 氯化钠饱和溶液

4 gadgets   

n.小机械，小器具（ gadget的名词复数 ）

参考例句：

• Certainly. The idea is not to have a house full of gadgets. 当然。设想是房屋不再充满小配件。 来自超越目标英语 第4册
• This meant more gadgets and more experiments. 这意味着要设计出更多的装置，做更多的实验。 来自英汉非文学 - 科学史

5 fidelity   

n.忠诚，忠实；精确

参考例句：

• There is nothing like a dog's fidelity.没有什么能比得上狗的忠诚。
• His fidelity and industry brought him speedy promotion.他的尽职及勤奋使他很快地得到晋升。

6 affordable   

adj.支付得起的，不太昂贵的

参考例句：

• The rent for the four-roomed house is affordable.四居室房屋的房租付得起。
• There are few affordable apartments in big cities.在大城市中没有几所公寓是便宜的。