Showing posts with label Scientific Instrument. Show all posts
Showing posts with label Scientific Instrument. Show all posts

Sunday, June 18, 2017

Vibration Generator and Sine Wave Signal Generator full set with Demo Video

The Vibration Generator gives mechanical oscillations when fed by signals from an oscillator/A.F. amplifier e.g. Sine Wave Signal Generator. 


Vibration Generator and Sine Wave Signal Generator full set-1 

A special high temperature coil system enables the unit to be operated at its maximum rating for a prolonged period without damage due to overheating.  


The frequency response encompasses the whole of the audio spectrum and beyond. Electrical input is made via two 4mm sockets and the mechanical output is provided by a shaft terminating in a pair of clamping nuts.Maximum peak to peak displacement: 8mm at 1Hz, decreasing with increase in frequency.Total frequency range: D.C. to 10kHz.Coil impedance: 3.5Ω at 50Hz.Dimensions: 10*10*11.2cm high.Vibrator can be used in any position, free standing or clamped.



Vibration Generator and Sine Wave Signal Generator full set-2


Maximum up and down amplitude of 1.5cm, built with 1A fuse. easy to use.


Video shows a full set of equipment include: Sine Wave Signal Generator(1pc),Vibration Generator(1pc),Data cables(2pcs),Metal square plate(1pc),Metal circular plate(1pc).


Recommend frequency for square plate: 300,580,820,1370,1690,1870,2370,2920,3120,3280.3660,3950Hz.


Recommend frequency for circular plate: 250,620,1510,3240Hz.

Chladni Figures

Ernst Florens Friedrich Chladni was a German physicist and musician. His most important work, for which he is sometimes labeled the father of acoustics, included research on vibrating plates and the calculation of the speed of sound for different gases.He also undertook pioneering work in the study of meteorites and is regarded by some as the father of meteoritics.For more at Wikipedia 

Wednesday, July 6, 2011

Scientific Instrument

Scientific Instrument refers to the equipment/instrument used in the direction of teaching or scientific reach field.To promote the development of scientific research and education, for the use of scientific research and teaching.

Scientific Instrument is the basic materials in teaching and scientific research,an instrument or device for experimentation, measurement, observation, inspection, drawing, etc.

Scientific Instrument can be divided into two major categories:Experimental & Practical Training(Mainly used in science and engineering)

Here're several categories of Scientific Instruments for reference:

1,Measurement:

  ① Length: Vernier Caliper, Demo Ruler,etc.

  ② Weight: Balance, Metal Hook Code,etc.
         
  ③ Time: Mechanical Stop Watch, Electronic Stopwatch,etc.

  ④ Temperature: Thermometer,etc.

2,Special Instrument: Sliding Rheostat,Acoustic Demonstrator,The second law of Newton demonstration apparatus,etc.

3,Flip chart: Junior high school biology teaching flip chart, Primary school music flip chart, Junior high school art teaching wall charts,etc.

4,Glass Laboratory Apparatus: Beaker, Alcohol lamp, Measuring Cylinder,etc.

5,Teaching Models: Human body model,Molecular model,Rabbit bone model,etc.

6,General Laboratory Equipment: Square Support,Power Supply,etc.

7,Biological Specimen: Toad Anatomical Specimen,Plant Specimen,etc.

8,Slides: Human Blood Slides,Plant Cell Slides,etc.