MC Piezo Test Unit
Ultimate Piezoelectric Sensors Validation
Rather than recording traffic, the MC5740 stores a histogram of the piezoelectric output, at pre-established intervals, for up to 30 days. This validation process provides assurance that the monitoring is conducted accordingly and that it will result in highest-quality data.
Usage extends beyond traffic data monitoring systems, to include other tools that make use of piezoelectric sensors, such as piezo WIM configurations or speed enforcement installations.
Site Commissioning and Validation
The MC5740's detailed check-up of signals attests the accuracy of the piezo sensors post-installation. Data captured immediately after can serve as a quality reference during troubleshooting.
Testing sensors long-term
A comprehensive characterisation of the piezoelectric sensors can highlight intermittent variations. The MC5740 capture the variance of parameters such like temperature, leakage resistance, capacitance, and noise.
Regular Check-up Programme
When piezoelectric sensors are used for critical applications like speed enforcement and WIM, regular site validation ensures that readings are accurate. A schedule for site validation will ensure a longer life for the equipment.
Confidence in Your Data
The MC5740 characterises the piezo sensors’ behaviour over time, with a range of diagnostic tools, including instantaneous measurements of temperature, leakage, capacitance and noise, and an oscilloscope mode to display piezo output waveforms.
The alongside example shows a definite relationship between temperature and sensitivity. However, the continuous clear delineation between real sensor hits and base-level noise is indicating a reliable installation. The report also displays the dynamic range of a piezo sensor. The predominant vehicles (cars) are causing sensor peaks below one volt while heavy vehicles regularly result in peaks over the 2.5V full-scale reading.
Technical Specifications
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Hardware
- Sensor compatibility: Piezoelectric
- Input: Up to 4 sensors
- Memory: 2 million axles
- Internal battery:6V 18Ah
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Piezo Characterisation
- Voltage Offset
- Electrical Noise
- Leakage and Capacitance
- Sensor Temperature
- Signal Amplitude
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Accessories
- MTE™ software: Included
- User manual: Included
