RESEARCH FACILITIES & Instrumentation
Used to study
magnetic properties of materials.
Lake Shore's new 7400 series Vibrating Sample Magnetometer (VSM) is the
most sensitive VSM available today. This VSM features a noise floor of
1 x 10-7 emu at 10 seconds/point sampling, 4 x 10-7 emu at 1 sec/pt.
and 7.5 x 10-7 emu at 0.1 seconds/point. In addition to providing the
lowest noise floor, this VSM's patented technology leads to a stability
of 0.05% per day which surpasses the stability of any other commercial
- 1 x 10-7 emu noise floor
at 10 seconds/point
- 7.5 x 10-7 emu noise floor
at 0.1 seconds/point
- Stability of ±0.05% PER DAY
- Fields to >3 tesla
- Temperature options from 4.2K to 1273K
- Vector and autorotation options
Ultrasonic Doppler Velocimeter
The DOP2000 (Signal Processing SA) uses
pulsed ultrasonic echo technique to measure
instantaneously velocity profiles, Doppler energy profiles, echo
profiles, spectral density (FFT), histogram and the flow rate in
flowing liquids. It computes and displays in real time these data
profiles based on the analysis of a user’s specified number of gates
placed along the ultrasonic beam.
The digital ultrasonic synthesizer included can generate any
emitting frequencies between 0.45 MHz and 10.5 MHz. Associated to this
performance, the DOP2000 includes a variable spatial resolution filter
that allows to adapt the size of the sampling volume to the application
and therefore improves the signal to noise ratio of the measurements.
| All the ultrasonic
parameters (Frequency, Prf, Tgc..) and the processing conditions
(number of gates, filters...) are set by the user. The smart trigger
capability of the instrument allows to synchronize the acquisition to
any periodic or non periodic event. This high flexibility applies to
any of the 10 channels multiplexer (available in option) and up to 32’000
profiles could be recorded in binary and/or ASCII format.
If desired, the DOP2000 can record simultaneously two types of data
profiles, such as the velocity profiles and the Doppler energy
profiles. A separate emitter output connector enables to use two
different transducers for emission and reception. This feature allows
by means of an external control unit the measurement of a complet 2D or
3D velocity field, which uses the UDVF
Operating in a Windows 9x® environment, the velocimeter can be
adapted to your applications with only few mouse clicks. The measured
profiles are displayed on a bright 12", 800x600 TFT color screen and
are recorded in its internal memory or send through the build-in
Ethernet connection to any storage device within few milliseconds.
key points of Signal Processing's
The available emitting frequencies
The emitting frequency is one of the
most important parameter. From its
selection, the velocity range, the spatial resolution and the measuring
range will depend. It is therefore very useful to remove any
limitations in its selection. This is why Signal Processing has
developed a digital ultrasonic synthesizer, which allows the DOP2000
velocimeter to use any emitting frequency between 0.45 MHz and 10.5
MHz, covering most of the possible applications of ultrasonic Doppler
The sensitivity is a very important
parameter because it influences the
range of possible application of the instrument. A high sensitive
instrument allows measurements in liquids containing few particles
and/or in liquids having high attenuation coefficient. The sensitivity
is defined as the minimum instantaneous power of the Doppler echoes
from which Doppler information can be extracted and is expressed in dbm
(reference power 1mW on a 50 ohm impedance).
Unfortunately, for most ultrasonic Doppler instruments find on the
market, any numbers characterizing the sensitivity are not given. This
makes the comparison difficult. Signal Processing has a put a lot of
effort to offer very high sensitive instruments. This is why when many
other instruments failed our DOP velocimeter still deliver quality
The definition of the thickness of the
sampling volumes are not only
defined by the ultrasonic burst length as it some times mentioned. This
would be the case only if the electronic bandwidth of the instrument
was infinite. Of course this is never the case and all ultrasonic
instruments owns filters to rejected unwanted noise level. This
bandwidth reduction defines the minimum thickness of the sampling
volume. In order to realize the best compromise between the noise level
and the desired resolution, our DOP velocimeter can modify both the
burst length and the bandwidth of the receiver stage.
More than one instrument
DOP2000 velocimeter do not only
measure velocity profiles. They
also compute and display in real time other data profiles such as the
echo, the Doppler energy and the power spectrum of a gate. By using
available accessories, our instrument can measure the sound velocity in
any liquid, or could be transformed in a complete acquisition system,
capable of controlling up to 10 ultrasonic probes independently, each
probes having its own set of parameters.
The way we design our velocimeter offers to our customers a very
versatile instrument that allows for instance to collect and record raw
data, which opens the possibility to evaluate any customer's processing
methods and ideas.
Maximal magnetic field induction: 5 Tesla;
Working zone diameter: 30 cm;
Working zone length: 1m;
Infrared Thermal Imager
|Thermo Tracer TH9100MLN/WLN|
High Quality and High Resolution Thermal Image
320 x 240 pixels I.F.O.V 1.2mrad
Testo 350XL Combustion Analyser
The Testo 350 flue gas analyser is a flexible, portable measuring system which fulfills a wide range of requirements.
For this reason, the analyser can be used to:
The 350XL consists of a control unit, analysis box and a flue gas probe. O2, CO, NO (option) NO2, SO2, CxHy and H2S (options), temperature and differential pressure as well as the usual calculated values CO2 etc.
The detachable control unit can also be used as a separate analyser for temperature, velocity, differential pressure, relative humidity etc. The readings can be printed on the integrated printer.
A complete Pelter gas preparation unit for controlled condensate disposal is built into the analysis box.
- Adjust all types of industrial burners
- Measure concentrations in crude and clean gas over a longer period of time
- Check the atmosphere of all types of process furnace
- Maintain stationary motors such as block-type thermal power stations
- Check gas pressures and gas velocities in flue gas and also in additional air ducts
Advantages of 350XL at a glance
Can withstand tough conditions thanks to sturdy transport case.
- Battery operation, also with gas preparation unit
- Analysis box with data logging function allows measurement without control unit.
- Radio control (option) between control unit and analysis box.
- Easy and fast operation via touch panel display.
- Measuring range extension (option) for CO
- Suitable flue gas probe for every application.
- Extremely high accuracies in the lower ranges for CO and NO.
- Easy handling thanks to low weight and compact size.
High Frequency Generator for Induction Heating
|Eldec MFG 20