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Apparatus for Determining Planck's Constant

USA

LEAI-52

0 ~ 3000 Get Latest Price

-

-

1 Unit

-

3-4 weeks

10 Unit per Month

T/T

Physics Experiment Apparatus

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タイトルまたは説明

Features

 

  • More accurate measurement results by using micro current meter

  • Integrated structure and easy to operate

  • No crosstalk between spectral lines

  • No background current

     

 

Introduction

This LEAI-52 experimental apparatus for determining Planck's constant is used to demonstrate the photoelectric effect, measure the characteristic curve of a photoelectric tube, verify the existence of "red limit" frequency, and calculate the Plancks constant according to the Einsteins equation of photoelectric effect. By adding optional modules of photocell, photoresistor and photodiode, current-voltage characteristics and other properties of these photoelectric devices can be measured. It is an ideal teaching apparatus for physics laboratories at colleges and universities.

 

Specifications

 

Description Specifications
Wavelength of filters 365 nm, 405 nm, 436 nm, 546 nm, 577 nm
Light source 50 W Mercury lamp

Sensor

Wavelength range: 340 ~ 700 nm
Cathode sensitivity: ≥1 µA (-2 V≤UKA≤0 V)
Anode dark current: ≤5×10-12 A (-2 V≤UKA≤0 V)
Current measurement range 10-7 ~ 10-13 A, 3-1/2 digit display
Phototube power supply I: -2 ~ +2 V; II: -2 ~ +20 V, 3-1/2 digit display, stability ≤0.1 %
Zero drift < ±0.2% of full scale (for scale 10-13 A) within 30 minutes after warm-up
Measurement method Zero current method and compensation method
Measurement error 3%

 

Parts List

 

Description Qty
Main Unit 1
Electric Control Unit 1
Cable 2
Photocell Module (size 10 mm × 10 mm, load potentiometer 10 kΩ )

1 each (optional)

Photoresistor Module (dark resistance 30 kΩ)
Photoresistor Module (dark resistance 30 kΩ)
Power Cord 1
Instruction Manual 1
Apparatus for Determining Planck's Constant

お問い合わせ

連絡先担当者:Mr. James

会社:Lambda Scientific Systems, Inc.

住所:16300 SW 137th Ave, Miami, Florida, USA,33177

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