Chapter 796 Cost 3 Fingers
Three days later, Fang Yinghong happily came to Gao Zhendong with a test record.
"Mr. Gao! Mr. Gao! The results are out."
"How is it?" Gao Zhendong asked.
"There are three watches with a daily deviation of no more than 1 second, and the rest range from 2 to 5 seconds. The key is that these watches with a daily deviation of 2 to 5 seconds have very stable deviations. 2 seconds faster is 2 seconds faster, and slower is 2 seconds faster. 5 seconds is 5 seconds slower, and there will be basically no fluctuations.”
For timing devices, the most important thing is stability, not accuracy.
Accuracy can be adjusted. Taking an electronic watch as an example, by fine-tuning the value of the resistor-capacitor component connected to the crystal oscillator, the oscillation frequency can be adjusted slightly, but stability is difficult to achieve.
To put it simply, stable errors are not errors, and random jumping is the most troublesome.
Three of these electronic watches can compress the daily error to less than 1 second, indicating that they have the potential for high precision, and several others can also have stable errors, which means that as long as the frequency source is adjusted, or By changing the counting reference value, it is very easy to adjust these watches with an error of 2 to 5 seconds to high-precision watches with a daily error of less than 1 second.
In more demanding situations, a daily error of 1 second is not a big deal, but for ordinary people and ordinary systems, this error is very sufficient, and even exceeds what is needed.
The simplest example is when multiple groups work together and check their watches before setting off, but as the day goes by, the time differs by a few seconds or even tens of seconds. Sometimes there will be problems, and this kind of watch is Without this worry, what is a difference of one second a day?
Fang Yinghong had never seen a high-precision timer before, but she had never seen one that was so small, consumed so little power, and was so light and strong.
As a technician, she considers everything from a technical perspective.
Gao Zhendong took the test record and read it carefully. The result was not what he expected, but he was also concerned about some other issues.
"How is the battery?" This question is a bit confusing, and even the direction is unclear. What exactly is the battery like?
Anyone else might not be able to understand it, but who is Fang Yinghong? She has been working with Chief Engineer Gao for more than two years, and you can tell what he cares about as soon as you hear it.
"To be honest, I only know that it is very good, but I can't tell you how good it is. According to the discharge curve of the nickel-cadmium battery, three days have passed. I have tested the voltage of the nickel-cadmium battery, and it seems that there is no power consumption. Of course, maybe the accuracy of our voltmeter is too poor to detect the change, but what is certain is that this battery still has a lot of power." Fang Yinghong said it very objectively, but the core meaning was very clear. The power consumption of this thing is horribly low.
"This voltmeter doesn't work." Gao Zhendong once again expressed similar emotions as when he measured the current a few days ago. However, the fact that it consumes very little power was something he expected. A small button battery in an electronic watch can be used in years. Even today's integrated circuits and TN-LCDs are worse than those in the future, but There won't be an order of magnitude difference.
Gao Zhendong packed up his things and called to Fang Yinghong: "Well, please fill in the materials. I'll give you a list by the way. In the name of our branch factory, you invite the leading comrades on the list and prepare to donate treasures, hahaha." < br>
"Present treasure?" Fang Yinghong was stunned for a moment, and quickly realized that Chief Engineer Gao was planning to find a ministry and commission, hand this thing over to them, and make up for the research and development process.
This kind of thing is completely normal for Chief Engineer Gao. A normal process? program? It doesn't exist here at all.
Fang Yinghong was extremely happy about Gao Zhendong's suggestion, which meant that it was a certainty that she would be included in this project. It seemed that she had not done much, and she was really well-deserved.
The chief engineer of the 12th Machinery Department looked at the meeting notice sent by Gao Zhendong, immediately dropped what he was doing and rushed to the third factory.
Gao Zhendong didn't think this was a big deal, so he notified the chief engineer and asked him to send someone to attend. The main reason was that the meeting time he notified was too close. He informed him in the morning and the meeting would be held in the afternoon. The impact on work is relatively large. Anyway, this matter is not big. Just someone can come and bring the news back.
But he obviously underestimated his weight in the hearts of everyone in the 12th Machinery Department. Although the chief engineer did not alert the leaders, he left his work and rushed to the third factory.
For the Seventeenth Machinery Department, Gao Zhendong just told Lao Chen that now Lao Chen, the factory director, can often represent the department. Anyway, for the 17th Machinery Department, all they need to know is that this is the case.
When the chief engineer of the 12th Machinery Department came to the third factory, he also saw an unexpected comrade.
Mr. Long from the Beijing Watch Factory.
Why did he come here? Is it related to the rotary encoder? If it is normal to see comrades from the National Defense Work Committee and the Ministry of Foreign Commerce here, and eight out of ten of Gao Zhendong’s jobs are closely related to them, then the watch factory of the Eleventh Machinery Department is very difficult for ten. The chief engineer of the Second Machinery Department was surprised.
Not to mention that the chief engineer of the 12th Machinery Department was confused when he saw Mr. Long. Even Mr. Long himself was happy and confused. What's going on?
The matter of the micro rotary encoder has been finished. At the beginning of this year, he and Gao Zhendong won the Lightning Technology Award in the 12th Machinery Department. Regarding this, whether it was him, the Beijing Watch Factory or the 11th Machinery Department , are all very satisfied. Being in the nest is not a skill. Being able to win awards from other ministries and commissions is the real skill.
It was precisely for this reason that even though he didn't know what Gao Zhendong was asking him for and was in a hurry, he still rushed over without hesitation.
Gao Zhendong, who was drinking tea and chatting with Mr. Long, saw that the chief engineer of the 12th Machinery Department had also arrived, so he stood up: "Boss, you are here too, so I won't waste everyone's time and start directly." It seems that it is What's new? The already experienced chief engineer thought.
Sure enough, Gao Zhendong picked up the phone and called the electronics laboratory.
"Sister Fang, everyone is here, you can come over and start."
There is no need for Gao Zhendong to introduce this kind of trivial matter himself, just leave it to Fang Yinghong, a win-win situation.
The Chief Engineer of the 12th Machinery Department, Lao Chen, General Manager Long, comrades from the National Defense Work Committee, and the Ministry of Foreign Commerce and others saw Fang Yinghong coming in with a plate covered with red silk cloth.
Yo, what is this for?
"Dear leaders and experts, today we, Mr. Gao, have invited you here to introduce the latest achievements of our electronics laboratory in the third factory. This achievement is not technically advanced, but for ordinary people, it is of great significance. It’s of great significance.” Fang Yinghong is also a veteran at giving reports. She explained things in an orderly manner in the first few sentences, which aroused the curiosity of the comrades present.
Gao Zhendong added: "The reason why we invite leading experts to come is that, technically, this thing falls within the scope of the Twelve Machinery Department, but from the perspective of the actual function of the results, it is the domain of Mr. Long and his colleagues. So today, firstly, Introducing this result can also be regarded as a small acceptance test. ”
It was Gao Zhendong's old habit to kill first and tell later. Everyone knew it and laughed.
Gao Zhendong did not waste any time and signaled Fang Yinghong to get to the point immediately.
Fang Yinghong opened the red silk on the plate and introduced solemnly: "This is the quartz crystal oscillation electronic timer that our Chief Engineer Gao has just completed, or electronic watch for short."
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Gao Zhendong almost laughed out loud, Sister Fang knew how to name it.
The other comrades looked at the dozen or so items on the plate that were similar to watches and became excited. Electronic watches? I have never heard of it before, it is indeed a new thing.
Fang Yinghong distributed a piece to them each, and then began to formally introduce this thing.
When they heard her say "...this electronic watch can stably provide timing capabilities with a daily error of no more than 1 second...", the comrades of the National Defense Work Committee couldn't sit still.
In fact, what is even more unsettling is Mr. Long of the Beijing Watch Factory, 1 second/day? This kind of accuracy is something they can't even imagine. They can only achieve it in less than 20 seconds at present, but it's all a matter of effort.
"This watch is great! Our troops need it very much!" Don't say anything else, even if it can only provide accurate timekeeping for 5 to 10 days, it is of great significance to comrades undertaking field missions.
After finishing speaking, he asked Fang Yinghong with unfinished thoughts: "Fang Gong, how long can this watch be used continuously after installing a battery?"
Fang Yinghong spread her hands: "I can't answer you now."
ah? This simplest parameter has not been measured? This doesn't look like Chief Engineer Gao's style. The leading comrades present were all dumbfounded.
But Fang Yinghong's next words made them feel relieved.
“The power consumption of this watch is extremely low, so low that our current test equipment cannot measure its specific power consumption. We can only estimate based on the current performance that the operating time of a single battery is more than half a year. ”
Half a year! Doesn’t this mean that this thing is not like a mechanical watch, which has to be wound every day and only needs to replace the battery once every six months?
Most of the mechanical watches these days are hand-rolled, and the price of automatic mechanical watches is still a bit pricey for ordinary people.
Gao Zhendong knew what the comrades of the Defense Working Committee were thinking, so he added.
"This kind of watch does not have any mechanical moving parts and can be easily reinforced to make it waterproof, dustproof and shockproof."
Sure enough, these words have touched the hearts of the comrades of the National Defense Work Committee. Shouldn't every commander at each level be assigned one of this thing?
He was still happy. The comrades of the Ministry of Foreign Commerce had things they were more concerned about. Their eyes were shining now, staring at the electronic watch in their hands: "Comrade Zhendong, how much does this cost?"
Gao Zhendong stretched out three fingers: "This number is a bit high because the batch size is small now and the cost is not high."
(End of chapter)