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As part of its Jencolor range of function boards, Mazet is introducing hardware and OEM systems for hand-held applications.

The MTCS-FB1 sensor hardware, based on Mazet’s True Color sensors, provides non-contact colour measurement with system interfaces such as Bluetooth, USB or RSxxx.

The sensor system provides XYZ colour values (DIN5033/CIE1931 colour space).

Once the measurements are calibrated to a repeat accuracy of

The absolute accuracy attained through serial measurement relies on system calibration as well as the chosen light source.

Thanks to the sensor’s long-term stability, periodic sensor calibration is not needed for ongoing operation after the initial factory calibration.

Mazet also offers customised designs with alternative interfaces and colour filters.

White-light LEDs are used as the standard light source in the sensors.

Alternative light sources can also be implemented to meet the customer’s application-specific requirements.

For the specification stage, Mazet recommends the use of Jencolor simulators, which simulate the interplay of light source, sensor, colour target and calibration to achieve the accuracy required by the customer.

The system can thus be reliably configured and optimised right from the outset.

This avoids post-development modifications and shortens time to market.

Test lighting employs two white-light LEDs, which are aligned near-parallel to the sensor direction (Sensor 1).

This means the lighting and measurement take place at a vertical angle to the sample.

Such an optical-axial system facilitates non-contact measurement at variable distances.

The optimal measurement range depends on the specific application and the physical factors.

The standard version of the unit provides a measurement area of approximately 30mm.

In order to ensure reproducible results at all times, the sensor is fitted with a distance detector.

This is based on a second colour sensor, which is offset from Sensor 1.

Sensor 2 ensures that the colour signal can always be analysed when the specified measurement distance between the sensor and the object is detected.

This distance in the sensor system is calculated from the offset angle between the two sensors and from the distance between the two sensors on the board.

The sensor signals have a resolution of 12 bit at a centre measurement frequency of 0.1kHz.

This means that the measurement’s triggering tolerance (approach accuracy at a typical hand speed of approximately 2cm/s) is 0.2mm.

The distance and tolerance parameters may be modifiable in future versions.

Alternatively, in cases where the measurement is not used to analyse the brightness of the application but only the XY colour space, the approach distance does not need to be measured.

Depending on the selected amplification level, both colour sensors supply continuous, independent measurement signals.

Because the sensor employs Mazet’s MTI04 amplifier, a total of eight amplification levels are possible (steps ranging from 25kohm to 20Mohm).

The levels are suitable for the amplification of signals ranging from 25nA to 20uA.

The microcontroller takes care of controlling the amplification levels, the signal handling, control functions and communication.

The microcontroller’s firmware continuously outputs the measurement values of the two sensors via the system interface to the master, which is a PC.

The measurement importing functions, calibration routines, colorimetric calculations and a monitoring application are contained in a .DLL and the test software, both of which are part of the SDK supplied with the sensor.

By taking advantage of the provided routines, the customer can therefore focus on developing the actual application software and implementing the sensor.

As well as the sensor unit, microcontroller, software, and interface, the system also includes a power supply (chargeable adapter providing 12 hours of regular operation without recharging), two buttons (on/off, mo-di), and two LEDs (status, operating mode).

These are located on the sensor system’s function boards.

Once calibrated, the OEM sensor system delivers absolute tristimulus colour measurements that are highly precise, display excellent repeat accuracy, have no deviation, and are based on specifiable distances.

The second on-board sensor additionally enables the detection of surface qualities and reflectivity on the measurement object.

The OEM software shipped with the unit provides the customer with all the necessary routines, ranging from the ADC value to the colour space of the testing environment.

Customer satisfaction, the satisfaction of our own workforce and lasting mutual business success is what we strive for.

The development and manufacture of custom- and application-engineered chips, boards and software using advanced technologies, as well as optoelectronics, represent our core operations.

Our target areas are medical engineering, automation engineering, industrial metrology, and optoelectronic applications.

High quality and delivery reliability are the driving forces of Mazet employees. Certified procedures are in place to guarantee the customer gapless traceability of processes from development through to the manufacture of electronic modules, creation of software or integrated circuits. An established document and data management system ensures that engineering design and manufacturing data is readily available for as long as the customer requires. 

Quality conformity at all phases guarantees the delivery of quality assured services. Mazet uses a quality management system under DIN EN ISO 9001 : 2000 for all of its operational procedures, thus ensuring the highest quality at any given process step.

'Our goal is success through your satisfaction': this is the quality philosophy of any Mazet employee. Consistently ongoing improvement of the quality of products and processes is part of the company's strategy. It relies on a permanent qualification program for employees at all levels, a process management system to optimise work procedures and on investments in all necessary equipment.

Mazet takes on the challenge of defining quality targets, including for new developments, and continuously monitoring fulfillment. The efforts for improvement in quality and output are supported by the social commitment of the senior management.

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