Lin Gao Qiming

Chapter 2438 Sonia ([-])

"4900 meters!" The non-commissioned officer operating the rangefinder finally reported a number after being busy for a while.Li Di shook his head secretly. The exact figure should be a little over 5000 meters. He just measured it with a laser range finder.However, this number is considered very close, and it is not a problem to correct it after watching the landing point after the artillery is fired.But now it is on a floating pier with little fluctuation, and the sea is calm. It is estimated that there will be several times the error when it is really at sea.He watched as Lin Hanlong beckoned him to set up a small shed, which was covering the top of the rangefinder.

"Why, is this thing afraid of water or sun?"

"I'm afraid of everything. I'm also afraid of tides and salt spray."

"Such a delicate thing."

"I want to use good things but I'm afraid of being coquettish?" Lin Hanlong laughed, "I haven't asked for a vacuum yet..."

"Don't, don't, how can our navy use such a powerful thing." Li Di said.For the time being, the telescopes produced by the optical factory are usually stored in a moisture-proof box for safekeeping. There is also quicklime in the box to absorb moisture regularly. In this way, problems such as mold and salt accumulation are inevitable, and they need to be used regularly. Gently wipe with a special lens cloth.Every once in a while, a large number of them will be returned to the factory for maintenance.This big guy doesn't seem to have any sealing measures, so what should I do if it becomes moldy and rusty?
"If it weren't for the fact that the one-meter range finder I brought was too little, I wouldn't even want these things..."

"Relying on the reserves of the old time and space, how long can we mix it up? Besides, the quantity is not enough for your naval equipment plan." Lin Hanlong said, "This is a test product, and I haven't sealed it—it will be easier to disassemble. After all, it needs to be used frequently. Open and adjust. It will naturally be sealed as a whole when it is actually installed on the ship."

"How is the sealing effect?"

"This is thanks to Lao Huang. Even though some people in the Senate called him a traitor every day, he brought us a lot of good things, such as suede and fir wood. It is estimated that the trouble-free service life of the finished product can probably last Three to six months."

Treated high-quality deerskin can be used as a sealant. Although the sap extracted from fir wood is a little yellowish after extraction, it can still be used as optical glue.Lin Hanlong also plans to design several desiccant containers on the rangefinder to ensure that the interior is dry.He estimated that after hard work, it would not be a problem for the rangefinder to persist at sea for three to five months at a time, and then it could be returned to the factory for maintenance.He thinks this is not bad as an experiment.In the future, the navy must have special personnel and equipment to be responsible for the maintenance of optical equipment.He just needs to train these people well.

"When do you think the organization will be finalized?" Li Di thinks that the performance is barely enough, and a period of three to six months is enough. After all, the navy's warships cannot be continuously deployed at sea for too long.

"It can be done at any time, and it will be impossible to improve the performance." Lin Hanlong spread his hands.

"Okay, then I'll arrange it as soon as possible." Li Di said, "The model, I think it's called a test-type [-]-meter ship rangefinder. Just remove the word 'test' after it's finalized."

It was already night when Lin Hanlong returned to Bairen from Ma Niao.As soon as he arrived at the optical factory, Cai Junjie reminded him: I have been out for several days, so go home quickly.

"What's the rush?" Lin Hanlong paid great attention to the optics factory he built, and when he was away from home, no matter how late he came back, he had to go around the factory.Check whether the production order is normal and whether the workers are producing according to the regulations. "The house is right there, it's not the same thing to go back early and late."

Cai Junjie had nothing to say.I had to look at his father, Cai Shengjie, who is currently in charge of managing the daily affairs of the factory.He wears a pair of reading glasses with a lanyard on his nose.

He first reported that a veteran of the Nanyang Company had come to him and said that he had something important to discuss.Lin Hanlong snorted nonchalantly, there were too many veterans who came to him, and all of them had important matters, and in the end they just wanted to "open the back door" to get some kind of optical equipment.

"Don't worry, he will come back if he has something urgent." Lin Hanlong said, "How is the trial production of the new equipment going?"

Recently, several new grinding equipments have been added to the factory. The lifespan of the machines and equipment produced in Lingao is often very short. First, most of the early parts are of poor quality and poor assembly accuracy; second, they are upgraded very quickly. After progress, new equipment often has a qualitative improvement, which makes old equipment quickly left out and listed as "eliminated".For example, the equipment in his optical factory needs to be replaced with new ones almost every year.

Cai Shengjie took out the craft notebook and sent over a wooden box.

"This is the lens produced by the new equipment."

Lin Hanlong picked up the glass lens, turned on the work light, took a closer look, and suddenly frowned.

He was busy at the workbench for a while, then raised his head and said, "Old Cai, you can call me to the General Machinery Factory and ask if Yuan Haowen is still in the factory?"

"Chief, it's getting dark, and you just came back, so why don't you talk about it tomorrow?" Cai Shengjie persuaded.

"Hurry up, Yuan Haowen will definitely still be in the general machinery factory."

"The gap between the equipment you made is a bit too big!" Lin Hanlong took out two newly ground lenses and put them on Yuan Haowen's desk, "Look at the lenses ground by your equipment."

As he spoke, Lin Hanlong hugged his hands to his chest, and looked playfully at Yuan Haowen in front of him.Yuan Haowen turned on the work light casually, took out a piece of white paper and spread it on the workbench, put on a piece of gloves and slowly put a lens on the paper, and then stacked another lens on top of it, and then saw the colored stripes— —Here is the Newton's ring due to the interference effect of equal thickness.

But at this time, the Newton's rings really don't look like rings—some are oval, some are duck-egg-shaped, and in some places, many stripes are crowded together, so they can't be called rings anyway.

"Old Lin, look at the density and range of the stripes. The radius of the spherical surface should be close to [-] meters." Yuan Haowen said calmly, "This is already the limit of what the lens grinder can process. You grind such a lens Where are you going to use it?"

Lin Hanlong was shocked. Originally, he ground these two lenses to test the accuracy of the newly received lens grinder, and he didn't think about any practical use. Unexpectedly, Yuan Haowen, who had a mechanical mouth, saw through it and said: "I That is, for the sake of detection accuracy, I haven’t thought about its practical use yet. However, before the achromatic technology matured in history, there were lenses with a focal length of tens of meters..."

"Then you don't need a ball radius of nearly [-] meters!" Before Lin Hanlong finished speaking, Yuan Haowen interrupted him, "However, we really need such a large-radius curved surface equipment for our mechanical mouth. The navy and army’s rangefinders, telescopes, and artillery mirrors are too busy, and they have already reported to the executive committee.”

Yuan Haowen stood up and put his hand on Lin Hanlong's shoulder, "The frame level of the fitter in the old time and space has a division value of 0.02mm/1m. At that time, there was no serious fitter in the mechanical port, and only a dozen sets of this equipment were brought. Which unit can't use it now? I only have two here, and I only dare to use one at ordinary times, and I dare not let the naturalized people touch it."

As he spoke, he touched the key to open the cabinet next to the marble slab, and took out a large wooden box, on which was written "Framed Level" and a line of small characters "Shanghai Measuring Tool and Cutting Tool Factory".

Yuan Haowen opened the box, took out a 30 cm square metal frame, stood it on a marble slab, and said, "This is it."

Lin Hanlong looked at it carefully, and saw that the metal frame was about 5 cm wide, straight on all sides, with special patterns, and a V-shaped groove about 20 cm wide on the bottom and left plane, presumably for the convenience of measuring cylinders; There are two vials, one large and one small, with bubbles inside the bottom of the frame; the large vial is parallel to the frame, and the small vial is perpendicular to the frame; there is also the emblem of Shanghai Measuring Tool Factory and the words [-]um/m on one side .At this time, the air bubble in the vial is steadily stopping in the center.

"The interval between the scales on the main level is about two millimeters, and the corresponding arc radius is 100 meters." Seeing Lin Hanlong watching carefully, Yuan Haowen said slowly behind him.

"No wonder you immediately agreed to set the limit of the lens grinder to 100 meters!" Lin Hanlong suddenly realized: "I didn't expect that we have an optical port and a mechanical port, so why did we think of going together? Even for your mechanical port, You also have to find a way to improve the precision of the lens grinder!" He laughed.

"You still say, this is a big project!" Yuan Haowen took two bottles of kvass from somewhere, handed Lin Hanlong a bottle, took a sip himself, and said slowly: "I can guess that these optical Equipment will fail. Because precision is expensive."

Yuan Haowen slowly began to open up the conversation: "Everyone knows that the core of standardization is the control and management of precision, but what is the basis for achieving precision?"

"Rely on the test!" Lin Hanlong had just taken a sip of kvass, and with the joy of the conversation before, he cut in decisively.

"Yes, it is guaranteed by testing, or in other words, by measuring." Yuan Hao asked after a pause, "What does the measurement rely on?"

"Measuring tools!" Lin Hanlong said decisively.

"Yes, the problem lies in the measuring tools!" Yuan Haowen threw Kvass on the desk and began a long speech:
"The accuracy of the parts is guaranteed by tool processing and measuring tools. Who will guarantee the accuracy of the measuring tools? That is the measurement work. For example, in the old factory, each vernier caliper is verified by the Metrology Bureau once every six months. If it fails to meet the standard, it will be repaired or scrapped. After that, you will buy new ones. Not only vernier calipers, but also balances, weights, thermometers, voltmeters, and stopwatches. Which one is not a measuring tool? We have not cared about this for so long after D-Day , coupled with such overloaded use, it is estimated that half of the measuring tools need to be repaired or even scrapped. It is also because of this that the design accuracy cannot be guaranteed, which caused problems with your batch of equipment." Yuan Haowen took a sip of kvass and continued Said.

(End of this chapter)