HYGROMETER | Relative humidity | Agar dono thermometer ka tempreture ke bich kaa antar Jayda hai toh relative humidity par iska kya asar padega? | Agar wet bulb thermometer or dry bulb thermometer ka reading barabar hai toh hawaa ki relative humidity kitni hogi? | MULTIPLYING FACTOR

Hygrometer hawa ki relative humidity naapne kaa ek portable yantra hai.

Hygrometer do tarah ke hote hai

1.      1.   Digital hygrometer

2.     2.  Whrilling hygrometer

Bharat ke bhumigat Vhago me wrilling hygrometer kaa prachalan hai.

 

Parts/bhaag

Isme do 15 cm ke thermometer lakdi ke frame me fit kia hue rahte hai

Frame me ek handle bhi hota hai jiski madad se yantra ko 360⁰tak ghumaya jaa sakta hai.

Ek thermometer ki ghundi (thermometer kaa nichla siraa) hawa me rahti hai, iss dry bulb thermometer kahte hai

Or ek thermometer ki ghundi me bhigaa hua kapdaa liptaa hua rahta hai, jisse dry bulb thermometer kahte hai.

 

Dry bulb thermometer --- dry bulb tempreture ko naapta hai

Wet bulb thermometer--- wet bulb tempreture ko naaptaa hai

 

Prayog/ how to use

 

Sabse pahle jahA  relative humidity nikalani hai, wha uske handle ko pakadkar kareeb 200 rpm ki speed se 1 min tak ghumaate hai

Uske baad

1.      Wet bulb thermometer, phir

2.      Dry bulb thermometer

Ki reading lete hai.

Uske baad inn readings ko ek formula me put karte hai

 

Relative humidity= 100 – (D.B.T. – W.B.T.) * Multiplying Factor

 

MULTIPLYING FACTOR

Multiplying factor ek no. value hai, jo totally dry bulb temperature or dry bulb tempreture ke difference (antar) per nirbhar karti hai. 

          Agar antar 25­­­­­­⁰ se jyada hota hai toh multiplying factor 7 hogaa

·        Agar antar 20­⁰ se 25⁰ tak hai toh multiplying factor 8 hogaa

·        Agar antar 20­­­­­­⁰ se kam hai toh multiplying factor 9 hogaa

Sabse pahle thermometer ki reading lenge , kyunki wet bulb thermometer ki ghundi (LOWER  PART)  par  ek bhinga hua kapda lipta hua rahta hai jisse iss thermometer ka temperature jald hi ghattaa hai, isliye sabse pahle wet bulb temperature kaa reading lena padta hai.

 

 

 

Que --  Agar wet bulb thermometer or dry bulb thermometer ka reading barabar hai toh hawaa ki relative humidity kitni hogi?

Ans--   100%

 

Que ---  Agar dono thermometer ka tempreture ke bich kaa antar Jayda hai toh relative humidity par iska kya asar padega?

Ans—relative humidity kam hogi , jo khaan me kaam karne waale logo ke liye achi baat hai.

 

Relative humidity

= relative humidity is a ratio of (mass of water vapour) / (mass of water vapour required to saturate one cubic meter of air)