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Acoustic Speed Testing Instrument
£¨SW-1£©
Resonance frequency of ultrasonic transducer:35¡«45KHz
Resonance point impedance:800¡«1000¦¸
Effective range: 100mm (voltage signal)
Effective range: 200mm (power signal)
Reading accuracy:0.01mm
Measuring error:1%(in air)
Minimum scale:0.01mm |
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Ultrasonic grating acoustic speed
testing instrument £¨CGS£©
Light source: CO2 laser
Resonance frequency of ultrasonic transducer: 1.7MHz
Principle: ultrasonic stationary waves produce ultrasonic grating
in the liquid that laser beam passes through,so the sound speed
in the liquid can be measured indirectly. |
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Spectroscope£¨JJY£©
Objective focal length:168mm
Clear aperture:¦Õ22mm
Amplification ratio: 7x
Scale range:0¡«360¡ã
Scale division:30'
Vernier reading accuracy:1'
Adjustable range of slit:0¡«2mm |
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Spectroscope £¨JJY-1£©
Objective focal length:168mm
Clear aperture:¦Õ22mm
Amplification ratio: 7x
Scale range:0¡«360¡ã
Scale division:30'
Vernier reading accuracy:1'
Adjustable range of slit:0¡«2mm
With all the CCD lens and monitor,the experimental results can
be displayed through screen. |
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Altimeter£¨JQC-1£©
Measuring range: ¡Ü1000mm
Scale value:0.02mm |
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Michelson Interferometer £¨WSM100£©
Demonstration and observation of
interferance
Measuring wave length of Monochromatic
Minimum reading:0.0001mm
Moving lens path length:100mm |
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Air Cushion Rotating Plate £¨QZ-1£©
Active plate: ¦Õ150mm
Load bearing: ¡Ý100g/mm¡¤H2O
Fixed plate:¦Õ200mm
Air pipe:¦Õ27mm
Gas pressure range:20¡«80mm¡¤H2O |
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Young's Modulus Measuring Instrument
£¨YMC-1£©
Amplification of telescope:30x
Effective aperture of objective:42mm
Viewing angle:1¡ã26'
Apparent distance constant:X100
Minimum apparent distance:1m
Scale value:1mm |
