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The goal of this paper is to present how the Airbag Control Unit deployment capability is affected by the energy reserve electrolytic capacitor mounted in reverse polarity by performing multiple crash events with a simple solution developed for generating automatic crash events. The multiple crash events have the role of inducing the deployment of all the restraint functions connected to the energy...
In this paper is presented a new method how to decode SPI signals. The signals are viewed and acquisitioned with an oscilloscope, after that the signals is transferred to the PC through Ethernet interface and decoded with the application using this algorithm. SPI interface is quite commonly used for communication between microchips, because it has a simple protocol. Testing this communication can...
This paper presents an application to sort colored objects with a robotic arm. We have a robotic arm which picks different colored cubes and sorts them placing in different cups. The color recognition is made using image recognition with a webcam. The robotic arms are widely used in the industry, but most of them are used in a PTP (Point To Point) trajectory, the moves are learned previously by the...
This paper presents an embedded temperature acquisition system. The temperature acquisition is made with a temperature sensor and a microcontroller. The temperature sensor is an analogical sensor, this way for the acquisition the microcontroller's ADC was used. If the formula is changed than the program can be generalized for any temperature sensor.
This paper presents a method to measure temperature on many channels with thermocouples. This can be useful to create a temperature matrix for recreating a temperature surface. The other usage could be to measure the temperature for many chips on a circuit board. The application is currently capable of measuring temperature in 20 points.
This paper presents an automatic testing method of capacitors. The used equipment is an Agilent 4263B LCR Meter. This equipment can measure, capacitance, resistance and inductance as a function of frequency. This way we can evaluate capacitors, because their value changes with the frequency.
In this paper more temperature measuring techniques will be presented. Our focus is on the technique, how to get the temperature information from the sensor to the PC, not the software it's self. Four temperature sensors will be presented, each of them different, needing different kind of mathematic calculation to obtain the temperature. To know these methods some experience is needed. Only reading...
This paper presents the automatic control of a temperature chamber. The temperature chambers are used to simulate temperatures from freezing temperatures to very high temperatures. These temperature chambers are often used for testing circuit board in the automotive industry, because this industry requires a big temperature interval. It will be presented three applications which can control temperature...
This paper presents a clock built around the MC9S12XDP512 microcontroller using an LCD display. This clock shows the time (hours, minutes, and seconds) and the date (year, month, day). The MC9S12XDP512 development board from Freescale has no integrated LCD module, so an external module had to be connected. The date is fully displayed (four digit years) and has an implemented algorithm to make the...
This paper shows how to achieve a dedicated application, implemented in an FPGA using VHDL programming language in Xilinx Integrated Software Environment - ISE. The application proposes the measurement of ambient temperature with the DS1626 digital sensor from the PmodTMP interface board, its display to the Spartan-3E Starter Board LCD and maintaining ambient temperature within limits set by the user.
This paper presents the design of a LabVIEW virtual instrument for the implementation of boundary scan testing methods, called Boundary-Scan Tester. The tool is designed for any electronic module equipped with JTAG interface, but was created for educational purposes and for use in teaching. This has included a dynamic state diagram by which the user can follow the process of testing and most operations...
This paper presents two test systems, the first with Agilent equipments and the second with National Instruments equipments. A comparison will be made about the characteristics of each. In each test systems will be presented the three main equipments which are compulsory for a functional test system: power supply, multimeter and function generator.
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