46
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WAVES, VIBRATIONS AND SOUND
Wavelength of light apparatus
The apparatus is designed to measure the wavelength of
light by studying the interference pattern from a double
slit. The device contains a built in 12 V auto lamp with a
holder for color filters and a millimeter scale with phos-
phorescent moveable markers. The emitted light is
viewed at a distance of about 3 meters through a double
3240.00
slit. The viewer then directs a co-worker to adjust the
markers on the millimeter scale so that the distance
between them corresponds to 10 interference maxima.
Afterwards the distances can be measured and the
wavelength of the light can be calculated. The equipment
is well-suited to student lab exercises. Red and blue
color filters and a double slit are provided.
Power source required: 12 V AC/DC, 1.3 A.
3240.00 Wavelength of light apparatus
Function generator - DC amplifier
Frequency counter
Compatible
2501.50
Three functions are built into a single
instrument with a digital display. The
simple and well- organized operating
panel makes the unit well-suited
for demonstration experiments
and for student experiments with
vibrations, waves and much
more.
Function generator
Sine, triangular and square wave
signals with a broad, continuous
frequency range are provided.
Digital fine-tuning of frequency and amplitude are pro-
vided. The BNC output signal connection (0-20 Vpp) is
short-circuit protected. Up to 10 W of output power are
Frequency counter
available via the amplifier. It is possible to demonstrate The meter is fully automatic, and it can measure external
frequency modulation by connecting an external signal. frequencies from 0.1 Hz to 150 kHz.
Serial computer interface
DC amplifier The instrument is supplied with a RS-232 serial com -
The short-circuit proof 10 W power amplifier has a fre -
puter interface which makes it possible to perform remo-
quency range from 0 - 50 kHz.
te control and readout of the instrument. This can be
The amplifier can be used to amplify signals from the
accomplished via the standard terminal program in
function generator or from external sources.
Windows or by means of the program Datalyse.
The input of external signals is via BNC connectors with
an impedance of 10 kΩ, and the output signal is acces-
sible via safety-type banana jack connectors. 2501.50 Function Generator
®
Science Equipment for Education Physics
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