Changeable NFe Probe Film Thickness Gauge Eddy current Principle
Brand Name:LEEB
Certification:CE, FCC EAC & ISO
Model Number:Leeb221
Minimum Order Quantity:1 Set
Delivery Time:In 7-10 work days
Payment Terms:T/T, PayPal, Western Union, L/C
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Location:
Chongqing Chongqing China
Address:
High&New Technology Industrial Park, Yubei District, Chongqing, China
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Product Details
Changeable NFe Probe Film Thickness Gauge Eddy current Principle
High Precision Changeable NFe Probe Coating Thickness Gauge With Plastic Shell
Functions & Features
As the hot-sale item with high quality settled NFe probes,
this equipment(Leeb221) has two measuring methods(continuous methods and single methods) and two working mode(direct mode and batch mode). User can switch off automatically or manually, and set the limit according to the different request.
Technical Parameters
| Technical Parameters | ||||||||
| Model No. | Leeb221 | |||||||
| Measuring principle | NFe | |||||||
| Measuring range (µm) | 0~1250μm | |||||||
| Probe | Changeable | |||||||
| Shell | Plastic | |||||||
| Accuracy | ±(1~3%H+1) μm; H refers to the thickness of testing piece | |||||||
| Minimum resolution (µm) | 0.1μm | |||||||
| Min curvature of the min area (mm) | Convex1.5 Concave9 | |||||||
| Diameter of the min area (mm) | Φ7 | |||||||
| Critical thickness of substrate (mm) | 0.5 | |||||||
| Memory | 200 groups measured data | |||||||
| Dimensions | 115*70*30mm | |||||||
| Power supply | AAA Alkaline battery | |||||||
| Standard Configuration | Main Machine, 1 probe & substrate, 5 calibration specimens (48.5μm,99.8μm,249μm,513μm,1024μm) | |||||||
| Optional Accessories | Probes,Specimens | |||||||
Measuring Principle
The instrument adopts eddy current thickness measurement method (NFe Probe):
Measure non-conductive coating on non-magnetic metals substrate
(such as paint coatings on enamel, plastic, rubber, copper,
aluminum, zinc, tin substrates).
The electromagnetic field is generated by using high-frequency
alternating current in the coil. When the probe contacts the cover,
an eddy current in the metal substrate is generated and fed back to
the coil in the probe, which is obtained by measuring the feedback
effect of the coating thickness.
Measuring Conditions
a) The characteristics of substrate
Standard methods for magnetic substrate of magnetic properties and
surface roughness should be similar to the magnetic properties and
surface roughness of specimens substrate.
For eddy current method, the standard substrate of electrical
properties should be similar to the electrical properties of
specimens substrate.
b) The thickness of substrate
Check whether the thickness of the substrate is lower than the
minimum thickness, if not, can use one of method in 3.3 to
calibrate.
c) Edge effect
Should not be in the specimen shape changing places, such as edges,
holes, and the place such as Angle measurement.
d) The curvature
Should not be in curved surface measurement of the specimens.
e) Measurement and measured times
Usually as a result of the instrument measurement result is not the
same each time, so we must in every area from several measurement
results.Coating thickness and surface rough degree of local
differences, require at any repeated measurements in a specific
area.
f) Surface cleanliness
Before measurement, should remove any attached on the surface of a
material, such as dust, grease and corrosion products, but do not
remove any covering material.
High quality Equipment Box:
Changeable NFe Probe Film Thickness Gauge Eddy current Principle
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