This presentation is the property of its rightful owner.
Sponsored Links
1 / 103

长度测量 PowerPoint PPT Presentation


  • 59 Views
  • Uploaded on
  • Presentation posted in: General

长度测量. 长度单位:米的定义. 三次定义 我国的长度单位是米。在 1983 年第十七届国际计量大会上正式通过米的新定义如下: “ 米是光在真空中 1 / 299792458 秒的时 间内所经过的距离。 ”. 米原器. 通过计量检定,将国家计量标准器(基准)所复现的计量单位的量值,通过标准 , 逐 级传递到工作用的计量器具,以保证对被测对象所测得量值的准确和一致。这个过程称为量值传递。. 长度量值传递.

Download Presentation

长度测量

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


7090136


7090136

  • 1983

    1299792458


7090136


7090136


7090136


7090136


7090136

    • 012340

    • 12 34561


7090136


7090136

1l20341256341203412 53

2

0123450l2345


7090136

3.


7090136


7090136

:()()


7090136

31

1.

31


7090136

3201250150mm

Vernier Caliper


7090136

l mm49mm500.98mm0.02mm490.02mm0.04mml mm


7090136

820.10mm

20.302.30mm


7090136

  • 34O150 mm 0.01 mm 0115 mm0.03mm0.05mm


7090136


7090136

Outside Micrometers

0.5mm 25 mm

Outside Micrometers


7090136

2

251mm0.5mm0.5mm500.5mm(150)0.01mm0.01mm

14.10mm


7090136

0.01mm


7090136

(a)

(b)


7090136

R4R3R3R4R10. 1mmK:


7090136

  • 0.00l0.00050.00020.00010.00002mm 0.03 0.015 0.006 0.003 0.001mm(0.3m3m) 1%2.5%


7090136

a)(b)(0.0l0.25mm)221431224


7090136


7090136

:180mm


7090136

C CCCa2 a CC C


7090136

POsa

bO

SCC

K2

KK20.20.25um


7090136

100mm0.001mm 500mm


7090136

124348912137

()5l011mm11106


7090136

85 78 lmm 0.lmm 01010354045 0.1 mm1000.001mm7

7.141 mm

1.5+ L/100um


7090136


7090136


7090136

7156l675


7090136

2212


7090136

12346m12m()

1


7090136

671470100mm10000.1mm1410100mm01297

1514111412II98147(79)30.1mm2


7090136

258628280.1mm


7090136

ABF1AB J250mmA'B '


7090136

234511.


7090136


7090136

53.764mm

19JA11100.1mm1mm101001000.1mm0.001mm


7090136

11234564


7090136


7090136

4612436A596787A99105011


7090136

ala=+4i=0.1umi (a2-a1)=+0.5um


7090136

(


7090136

234564748910


7090136


7090136


7090136

a13243


7090136

0l05 mm 15

aS


7090136

(bS


7090136


7090136


7090136


7090136

0.lum


7090136


7090136

(P)()()


7090136

K120P0 ()


7090136

dL1(l500mm)L2PSkla (d):


7090136

112344563bb5aa


7090136

1432 35

OO,A


7090136


7090136

XYZ


7090136

xyz

(UMM)0.5um1um2um0.20.1um(CMM)5um10um1um2um


7090136

CMM


7090136

X

3600

mm

Y

2438

mm

Z

1524

mm

25.4

m/min

0.0005

mm

0.028/1400

mm


7090136

Chameleon 7107

:

6501000650

:

2.1+L/355(ISO 10360-2)


7090136

fm


7090136


7090136


7090136


7090136

  • 1mm)


7090136

43 1 5


7090136

TM


7090136


7090136

:


7090136

1982IBMGerd Binnig(Heinrich Rohrer)Scanning Tunneling Microscope,STM


7090136

STM)exp,k.1


7090136

1nm


7090136

1990IBM35IBM


7090136

Atomic Force Microscope AFM

STM


7090136


  • Login