Optical scales

Measuring device setup

Characteristics

  • Optical 3D determination of masses <br/>Measuring the wetting of wires after immersion in a solder bath.

WAZAU's optical balance can be used to assess the wetting of test wires with solder. The application thickness is determined 3-dimensionally using an optical method from which the mass is calculated. Not only the mass, but also its distribution is determined.

Hinged safety enclosure

Solder application on copper wire

Simple software operation

The Optical-Weight software has the task of displaying the measured values in such a way that the user is informed about the weighting and solder distribution between the nose image and wire extension. The measurement result can be printed out in a referencing PDF. The solder tip formed at the end of the test wire during wetting is calculated separately and added to the total mass increase. This is well below one milligram and offers the advantage of optical detection in the two-digit nanogram range.

Wire unwinding via the neutral phases

In the unwinding, which has 4 neutral phases at 90° steps, the amount of solder applied there can be recognized as continuous or interrupted. Interrupted solder wetting is used and displayed as a fault. The measurement image shows the current solder distribution. With a 4-fold 90° rotation, this development is created on which the solder distribution is displayed. Each line shows one of the neutral phases on which the solder is located. The calculated weight is divided into two groups A) The nose tip, which has lengthened/increased in the course of tin application and must be calculated separately. B) The remaining solder application after nose formation as a total weight.

Print preview

The data sheet (reference sheet) can be printed out in the print preview. This contains all the data recorded and can be added to the parts evaluation card as a quality confirmation. The set standard printer is always used here.

PDF reference printout of the measurement results

The printout of the measuring wire references this. In addition, this printout shows a control image of the wire, as well as the external conditions such as temperature and humidity.

Technical specifications

Sample Type: Silver-Plated Copper Wire, 75 mm/1 mm Ø
Microscopy Camera: Jenoptik NAOS 5400x3600 GrayScale Measurement Resolution: ~ <= 50 [µg]
Measurement Range: 75 mm
Image Step Time: 33 [ms] / Image
Field of View (FOV): 12000 [µm]
Capture Speed: 30 [Hz]
Software: Operating System MS Windows 10,11 64 Bit
Software Control: Optical-Weight V1.5 / 64 Bit
Illumination: Continuous Light LED (warm white) d=30 [mm]
Camera Resolution X: 2.2 [µm]
Camera Resolution Y: 3.3 [µm]
Operating Resources: Power 230 VAC 50/60 Hz
Dimensions: W x H x D: 300 mm x 3000 mm x 300 mm
Weight: approx. 20 [kg]