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 are between 2 and 5 seconds. The key is that the deviation of these watches with a daily deviation of 2 to 5 seconds is very stable. If they are 2 seconds faster, they are 2 seconds faster, and if they are 5 seconds slower, they are 5 seconds slower. There is basically no fluctuation."

For a timing device, the most important thing is stability, not accuracy.

Precision can be adjusted. Taking an electronic watch as an example, by fine-tuning the values ​​of the resistors and capacitors connected to a crystal oscillator, its oscillation frequency can be adjusted slightly, but stability is hard to come by.

To put it simply, stable errors are not considered errors, and random jumps are the most troublesome.

Three of these electronic watches can compress the daily error to less than 3 second, which shows that they have the potential for high precision, and the others can also have stable errors, which means that as long as the frequency source is adjusted, or the counting base value is changed, these watches with an error of 1 to 2 seconds can be easily adjusted to high-precision watches with a daily error of no more than 5 second.

In situations with higher requirements, a daily error of 1 second is not a big deal, but for ordinary people and ordinary systems, this error is more than enough, or even exceeds the needs.

The simplest example is that when multiple groups work together, they check their watches before setting off. However, as a day goes by, the time is off by just a few seconds or even dozens of seconds, and sometimes problems will occur. This kind of watch does not have this worry. What's the problem with a one-second difference in a day?
Fang Yinghong had seen high-precision timers before, but she had never seen one that was so small, so energy-efficient, and so light and sturdy.

As a technician, she considers everything from a technical perspective.

Gao Zhendong took the test record and read it carefully. The result was as he expected, but he was still concerned about some other issues.

"How is the battery?" This question is a bit confusing and even unclear. What exactly is the battery like?
If it were someone else, they probably wouldn't understand what he said, but Fang Yinghong was a veteran who had worked with Chief Engineer Gao for more than two years, so she knew what he was concerned about as soon as she heard it.

"To be honest, I only know that it's 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 and I have tested the voltage of the nickel-cadmium battery, and it seems like no power has been consumed. Of course, maybe our voltmeter is too inaccurate to measure the changes, but what is certain is that this battery still has a lot of power." Fang Yinghong spoke very objectively, but the core idea was expressed very clearly, that this thing has terribly low power consumption.

"This voltmeter is not good." Gao Zhendong sighed again, similar to when he measured the current a few days ago. However, the fact that it consumes very little power was within his expectations. A small button battery in an electronic watch can easily last for years. Even the current integrated circuits and TN-LCDs are inferior to those in the future, but the difference is not an order of magnitude.

Gao Zhendong packed up his things and called Fang Yinghong: "Well, you can get some materials. I'll give you a list. Invite the leaders on the list in the name of our branch and prepare to present treasures. Hehehe."

"Presenting a treasure?" Fang Yinghong was stunned for a moment, but quickly realized that Chief Engineer Gao was planning to find a ministry to hand this thing over to them and supplement the R&D process at the same time.

This kind of thing is completely normal for Chief Engineer Gao. Normal process? Procedure? It doesn't exist for him at all.

Fang Yinghong was extremely happy about Gao Zhendong's suggestion. It meant that her inclusion in this project was a foregone conclusion. To be honest, it seemed like she had not done much and she really did not deserve it.

In the 12th Ministry of Machine Building, the chief engineer saw the meeting notice sent by Gao Zhendong, immediately dropped the work at hand and rushed to the third factory.

Gao Zhendong thought this was not 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. The notice was given in the morning and the meeting was held in the afternoon, which had a great impact on the work that had already been arranged. Anyway, this was a small matter, so anyone could come and take the news back.

However, he obviously underestimated his importance in the eyes of everyone in the 12th Ministry of Machine Building. Although the chief engineer did not alarm the leaders, he dropped his work and rushed to the third factory.

At the 17th Ministry of Machinery, Gao Zhendong just told Lao Chen that Lao Chen, the factory director, could often represent the ministry. Anyway, for the 17th Ministry of Machinery, it was enough for them to know that this was the case.

When the chief engineer of the 12th Ministry of Machine Building arrived at the third factory, he also saw an unexpected comrade.

Mr. Long from Beijing Watch Factory.

How did he come here? Is it related to the rotary encoder? If it is normal to see comrades from the Defense Work Committee and the Ministry of Foreign Trade here, eight out of ten of Gao Zhendong's work is related to them, then the watch factory of the 11th Ministry of Machinery is very surprising to the chief engineer of the 12th Ministry of Machinery.

Not to mention that the chief engineer of the 12th Ministry of Machine Building was stunned when he saw President Long, even President Long himself was happy but confused. What was going on?

The work on the micro rotary encoder has been completed. At the beginning of this year, he and Gao Zhendong won a Lightning Technology Award from the 12th Ministry of Machine Building. He, the Beijing Watch Factory and the 11th Ministry of Machine Building were all very satisfied with this. Being a bully at home is not a skill. Being able to snatch awards from other ministries is a real skill.

It was precisely for this reason that even though he didn't know what Gao Zhendong wanted him to do and time was extremely urgent, he still rushed over without hesitation.

Gao Zhendong, who was drinking tea and chatting with President Long, saw that the chief engineer of the 12th Ministry of Machine Building had also arrived, so he stood up and said, "Boss, since you are here too, I won't waste everyone's time and let's get started directly." It seems that there is something new, thought the already experienced chief engineer.

Sure enough, Gao Zhendong picked up the phone and called the electronics laboratory.

"Sister Fang, everyone is here, you can come over and start."

For such a small matter, Gao Zhendong doesn't need to introduce it himself. It's just right to throw it to Fang Yinghong, a win-win situation.

The chief engineer of the 12th Ministry of Machine Building, Lao Chen, General Long, comrades from the Defense Working Committee, the Ministry of Foreign Trade and others saw Fang Yinghong come in carrying a plate covered with a red silk cloth.

Yo, what is this for?

"Dear leaders and experts, our General Manager Gao invited you all here today to introduce the latest achievements of the electronic laboratory of our Third Branch Factory. This achievement is not very advanced in terms of technology, but for ordinary people, it is of great significance." Fang Yinghong is also an old hand 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 invited all the leaders and experts here is that, firstly, this thing is technically in the domain of the 12th Ministry of Machinery, but in terms of the actual function of the results, it is the domain of Mr. Long and his team. So today, firstly, we are here to introduce this result, and secondly, it can be regarded as a small acceptance check."

Gao Zhendong had the habit of acting first and reporting later. Everyone knew it and started laughing.

Gao Zhendong did not delay and signaled Fang Yinghong to get to the point immediately.

Fang Yinghong lifted the red silk on the plate and solemnly introduced: "This is the quartz crystal oscillator electronic timer that our Chief Engineer Gao has just completed researching, or electronic watch for short."

Gao Zhendong almost laughed out loud. Sister Fang can also come up with names now.

The other comrades looked at the dozen or so things on the plate that looked like watches and became interested. Digital watches? They had never heard of them before. They were indeed new things.

Fang Yinghong distributed one piece to each of them, and then began to formally introduce this thing.

When they heard her say, "...this electronic watch can provide stable timing with a daily error of no more than 1 second...", the comrades from the Defense Work Committee could no longer sit still.

In fact, the one who was even more anxious was Mr. Long from the Beijing Watch Factory. One second per day? This accuracy was something they could not even think of. They could only achieve less than 1 seconds at present, but they had to work very hard.

"This watch is great! Our troops need it very much!" Apart from anything else, even if it can only provide accurate timing for 5 to 10 days, it is of great significance to comrades who undertake field missions.

After that, he asked Fang Yinghong with great interest: "Mr. Fang, how long can this watch last after one battery is installed?"

Fang Yinghong spread her hands: "I can't answer you now."

Huh? He didn't even measure the simplest parameters? This is not like Chief Engineer Gao's style. The leaders present were all dumbfounded.

However, 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 unlike a mechanical watch that needs to be wound up every day, it only needs to have its battery replaced every six months?

Most mechanical watches these days are still hand-wound, and the price of automatic mechanical watches is still a bit high for ordinary people.

Gao Zhendong knew what the comrades from the Defense Work Committee were thinking, so he added a sentence.

"This watch has no mechanical moving parts and can be easily reinforced to be waterproof, dustproof and shockproof."

Sure enough, these words really hit the nail on the head for the comrades of the Defense Working Committee. Wouldn't it be necessary for every commander at every level to be equipped with one?
He was still happy, but the comrades from the Ministry of Foreign Trade had something more important to worry about. Their eyes were shining, staring at the electronic watches on their hands: "Comrade Zhendong, how much does this thing cost?"

Gao Zhendong held up three fingers and said, "This number is a bit high because the batch size is small and the cost is still not easy to reduce."

(End of this chapter)