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Meteorological Instrument Thai Meteorological Department THAILAND - - PowerPoint PPT Presentation

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Meteorological Instrument Thai Meteorological Department THAILAND by MR PISOOD PROMSUT WMO/JMA Training Workshop On Calibration and Maintenance of Meteorological Instrument in RAII at TSUKUBA JAPAN METEOR METEOROL OLOGI GIGAL AL

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Meteorological Instrument Thai Meteorological Department THAILAND

MR PISOOD PROMSUT by WMO/JMA Training Workshop On Calibration and Maintenance of Meteorological Instrument in RAII at TSUKUBA JAPAN

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METEOR METEOROL OLOGI GIGAL AL INSTRUM INSTRUMEN ENT BUREAU BUREAU

THAI METEOROLOGICAL THAI METEOROLOGICAL DEPARTMENT DEPARTMENT

4353 4353 meteorologigal meteorologigal department sukhumvit department sukhumvit rd. bangna

  • rd. bangna

bangkok thailand bangkok thailand 10260 10260

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SLIDE 3

บทนํา

 เนื่องจากเครื่องมือวัดที่ใชในการตรวจวัดสภาพอากาศมีผลกระทบตอความแมนยําและเชื่อถือ

ไดของขอมูลจึงจําเปนตองดําเนินการใหแนใจวาเครื่องมือวัดที่ใชในการตรวจวัดสภาพอากาศ สามารถใหผลการวัดที่แมนยําตามความตองการ การสอบเทียบ (Calibration) เปนกิจกรรม ที่จําเปนสําหรับ การทําใหแนใจวาเครื่องมือวัดที่ใชงานยังสามารถทํางานไดอยางแมนยําตามที่ ตองการ

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METEOROLOGICAL DEPARTMENT OF THAILAND

Meteorologigal Instrument

There

There are many type of are many type of meteorological instrument meteorological instrument

 1 Weather satellite

Weather satellite system system

 2

2 Weather radar Weather radar system system

 3

3 Automatic weather Automatic weather station station more more than than 90 90 station station

 4

4 Surface weather Surface weather station station more than more than 100 100 station station

 5

5 Automatic Automatic Rain Gauge Rain Gauge Station Station

 6

6 Seismic Monitoring Seismic Monitoring Station Station 40 40 Station Station

4 3 5

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ความหมายของการสอบเทียบ

 การสอบเทียบ หมายถึง เปนชุดดําเนินการภายใตสภาวะเฉพาะเพื่อหาคาความสัมพันธระหวาง

เครื่องมือวัดเพื่อเปรียบเทียบคาที่รูของปริมาณที่วัด (ซึ่งตองเปนคาที่สามารถอางอิงได) ผล จากการสอบเทียบจะใหขอมูลวาเครื่องมือวัดที่ใชในการตรวจสภาพอากาศยังคงมีคุณลักษณะ ทางดานมาตรวิทยาที่เหมาะสมในการใชงานตอไปหรือไม

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SLIDE 6

AGROME T E OROL OGI CAL ST AT I ON

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SLIDE 7

Maximum Thermometer Minimum Thermometer Psychrometers exposure (wet bulb,dry bulb) Mercury Barometer Rain Gauge wind speed and wind direction

Surface Meteorological Surface Meteorological Station Station

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Inspection System Inspection System of

  • f

Thai Thai Meteorological Department Meteorological Department

Me te or

  • logic al Standar

d

Thai Meteorological Thai Meteorological Department (TMD Department (TMD ) Japan Meteorological Agency (JMA)

2 ye ar s

Users Users Laboratories, Factories, Laboratories, Factories, Manufacturers Manufacturers

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SLIDE 9

WMO REGIONAL INSTRUMENT CENTRES (RICS)

Regional Regional Associations Associations Region Region Instrument Instrument Centres Centres RA I Africa

Algiers (Algeria) Cairo (Egypt) Casablanca (Morocco) Nairobi (Kenya) Gaborone (Botswana)

RA II Asia

Tsukuba (Japan) Beijing (China)

RA III South America

Buenos Aires (Argentina)

RA IV North and Central America

Bridgetown (Barbados) San Jose (Costa Rica) Mount Washington (USA)

RA V

  • South. West Pacific

Manila (Philippines) Melbourne (Australia)

RA VI Europe

Bratislava (Slovakia) Ljubljiana (Slovenia) Trappes (France)

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SLIDE 10

2- 4 Apr il 1979 c ompar ision at Kolkata INDIA 4- 6 Jun 1984 c omr ar ision at T

  • kyo Japan

27 F ub – 11 Mar c h 1994 Compar ision at T

  • kyo Japan

2007Compar ision at RIC (T SUKUBA) Japan 2010 c ompar ision at RIC (T SUKUBA) Japan National Standar d F

  • r

tin Bar

  • me te r

Inde x E r r

  • r

Pr e ssur e : + 0.03 mm.Hg T e mp : - 0.16 °C

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Ca lib ra tio n b a ro me te r a nd the rmo me te r At RI C (Re g io na l I nstrume nt Ce ntre ) in tsukub a Ja pa n : Ye a r 2007

F

  • rtin b a ro me te r

Dig ita l b a ro me te r Sub Sta nda rd T ra ve lling ke w me rc ury b a ro me te r Se ria l No 610 / 440228 T ype 00.06100.100000 No .702055.006 Ma de in Ge rma ny

Dig ita l b a ro me te r Mo de l PT B220ACB2A3 Se ria l V1220015 Va isa la F inla nd

Gla ss the rmo me te r (No rma l) Se ria l 6169

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Wind tunne l type 8420

T he rma l a ne mo me te r f642 Ultra so nic a ne mo me te r Mic ro ma no me te r fc 014 Pito t tub e

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Sub sta nda rd b a ro me te r Ma nufa c ture r ne g re tti & ZAMBRA L ONDON Se ria l No . M/ 7620 Ra ng e : 50 – 850 mm.Hg . F

  • r te st me te o ro lo g ig a l

I nstrume nt,

  • Ane ro id b a ro me te r
  • Dig ita l b a ro me te r
  • Ba ro g ra ph
  • Mic ro -b a ro g ra ph

Ca lib ra tio n

T e st c ha mb e r fo r Pre ssure

Va c uum c ha mb e r

Ma nufa c ture r : Ne g re tti & ZAMBRA Ma de in e ng la nd I nside dime nsio ns 20.5 x 17 x 13 inc h Na tio n a l sta nda rd b a ro

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RAI N Ga ug e s Psyc hro me te r (dry- We t) Sg re e n Cha mb e r Me rc ury b a ro me te r

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SLIDE 15

Me te o ro lo g ic a l I nstrume nt SUNSHI NE RE CORDDE RS Wind Ane mo me te r Gra ss minimum the rmo Ra infull re c o rde r

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Calibration for barometer Calibration for barometer

Observatory barometer, movable-scale (Fortion Type) Serial No.5016 Sub Traveling Standard Barometer Lambrecht No 610/440228 No 702055.006 Standard Barometer (JMA)

6 mo nths Ca lib ra tio n e ve ry 2 ye a rs

Traveling Barometer Users

E ve ry 2 ye a rs

Sub Traveling Standard Fortin Type Standard Barometer TMD

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A plan of Pr ac tic al use of T MD’s T r ave ling Standar d instr ume nt

Pre ssure T e mpe ra ture Humidity Dig ita l b a ro me te r PT B220(Va isa l a ,F inla nd Me rc ury b a ro me te r L a mb re c ht no .610/ … in Ge rma ny Gla ss T he rmo me te r Asma nn psyc hro me te r

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E nviro nme nt te st c ha mb e r

F

  • r te mpe ra ture a nd humidity

T he rmo g ra ph Gra ss the rmo me te r Dig ita l the rmo me te r

Spe c

  • te mpe ra ture

ra ng e -40 – 200 °C Mo de l no T 10RS Se ria l no 26042-09 USA. Sta nda rd the rmo me te r Se ria l No . 918802

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T e mp. At Chambe r Adjuste d appr

  • ximate

We use a Glass T he r mome te r as a te mpe r atur e Standar d Adjust the te mpe r atur e se ting be twe e n 2 to 45 de gr e e Pr

  • ble m
  • T

he c ooling time is ve r y slow(ve r y time c onsuming

  • If we r

aise the te mpe r atur e to be faste r (OK.)

  • Whe n we tur

n on to mac hine s wor king to be ve r y noisy

  • T

his is Instr ume nt L

  • ng a life time
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Humidity T e st Cabine t

T e c hnic Da ta Ma x e rro r in me a sure me nt

  • f Psyc hro me te r ± 1 ℅

Sc a le divisio n o f psyc hro me te r 0.2 de g re e Ac c ura c y o f hyg ro me te r fo r humidity c o ntro l ± 2.5 ℅ relative humidity, if the me a suring e le me nt is re g e ne ra te d a t re g ula inte rva ls T e st c ha mb e r H x W x D 400 x 700 x 280 mm. We ig ht a ppro x. 170 kg Aspira te d Psyc hro me te r Hyg ro me te r

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Humidity T e st Ca bine t

T he c alibr ation te st c hambe r is de signe d for the c alibr ation of humidity se nsor

  • s. It is possible to c alibr

ate se ve r al se nsor s at the same time . T he

  • pe r

ating r ange is fr

  • m 15℅ to 95℅

r e l. humidity T e c hnic al spe c ific ation Ope r ating r ange Powe r supply Volume te st c hambe r we ight Var iations

< 15 ...96 ℅rel. humidity ± 1 ℅

230 / 50 Hz

  • Approx. 80 l.
  • Approx. 170 kg.
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Supply voltage 220 v AC / 50 Hz

  • Max. powe r

supply 3 kva Usable te st c hambe r volume appr

  • x 80 l.

Humidity c ontr

  • l appr
  • x. 15 - 95 ℅ Rh.

Use Silic a Ge l powde r is Hygr

  • sc opic (a dsorption)

T ype 8222.0000 MADE

IN GE RMANY

F

  • r

Aspir ate d Psyc hr

  • me te r

By ASSma nn Sc ale divisions 0.2 ° C

Size length 440 mm weight approx. 1.5 kg

Manufac tur e s T HE ODOR F RIE DRICHS & CO L T D. MADE IN GE RMANY

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Process o Process of wind f wind speed calibration speed calibration

Ultrasonic Anemometer 0.5 → 20 m/sec Air Pressure Measuring Instruments 1 → 30 m/sec Standard Wind Speed 0.5 → 20 m/sec Standard Wind Speed 20 → 30 m/sec

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Calibration for wind speed Calibration for wind speed

Users Factories Manufactures Laboratories Ultrasonic Anemometer Kaijo Sonic Corporation DA-650-3TV (TR-90AH) Japan Quality Assurance Organization (JQA) Department of Science Service Ministry of Science and Technology Pressure Measuring Instruments Dwyer No.1425 Hook Gage 5 years 5 years 6 months

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SLIDE 25

National Standard National Standard Wind Wind Tunnel Tunnel

Design : Open-Circuit Wind Tunnel Measuring range : 0.15 …. Approx. 50 m/sec Dimensions : 652 cm.

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SLIDE 26

UL T RASONI C ANE MOME T E R K a ijo So nic Co rpo ra tio n MODE L DA-650 3T V (Se nso r T R-90AH) Se ria l Numb e r 110730029 (Se nso r 120629586) Se nso r Bo x Size : 39 x 39 x 20 c m. Displa y : 48 x 35 x 15 c m.

Me a sure me nt ra ng e : Sta nda rd type 0 m/ s to 30 m/ s ( T R-90AH T ype pro b e ) Ac c ura c y o f o pe ra tio n : Within 1 ℅ Re so lutio n : 0.005 m/ s o r

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SLIDE 27

Windtunnel Specification Variations Measuring range 0.15………50 m/s According reynold number 0.65 x 10 4 ……..2.15 x 10 4 (at pl = 1013 hPa and tl = 20 ° C Degree of turbulence at v = 3 m/s ± 0.4 % (measured in the tunnel at v = 10 m/s ± 0.4 % Cross section with : at v = 40 m/s ± 0.3 % Drive power 43 kW Drive control SCR Power supply 230 / 400 v 50 Hz / 3 Ph

  • max. 50 kVa

Theodor Friedrichs & Co. MADE INGERMANY

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