ELECTRONIC TESTING

- Electronic testing is an essential aspect of the product development process. It involves verifying the electrical and electronic components of a device to ensure that it meets the required performance and safety standards. The objective of the project is to perform testing of the various models.
- The High Precision LCR meter (LCR meter), Digital storage Oscilloscope (DSO), Regulated power supply (RPS), High Precision Function Generator (FG), and High Precision Digital Multimeter (DMM), Mixed Signal Oscilloscope with accessories including software (MSO) are all important tools in electronic testing of devices.
Here are some of the things that can be done with each of these instruments.

- A High Precision LCR (Inductance-Capacitance-Resistance) Meter is available to measure the inductance (L), capacitance (C), and resistance (R) of components in a circuit. In medical device testing, the LCR meter can be used to measure the impedance of sensors, transducers, and other electronic components used in medical devices.
- Also used for
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1. analysing the characteristics of various actuator signals
2. circuit design and testing,
3. quality control in manufacturing, and
4. research and development in electronics and engineering.
5. They are especially useful for measuring the characteristics of high-frequency components used in radio frequency (RF) circuits and telecommunications equipment.

Digital Storage Oscilloscope is available to visualize the waveform of an electronic signal over time. In medical device testing, the DSO can be used to observe the signal output from sensors, amplifiers, and other electronic components in the medical device. Further it is used to check the faulty components in various circuits. To measure voltage, current, frequency, time period, time interval between signals etc., through visual viewing of the waveforms and the quantities. To save signals for offline processing and analysis. The Fluke 190-m2 is a handheld digital storage oscilloscope (DSO) designed for measuring and analyzing electronic signals. Some of the key features of the Fluke 190-m2 include:
- Bandwidth: The instrument has a bandwidth of up to 200 MHz, which means it can accurately measure signals with frequencies up to 200 MHz.
- Sampling rate: The Fluke 190-m2 has a maximum sampling rate of 2.5 GS/s (Giga-samples per second), on two channel simultaneously with upto 400ps resolution.
- Memory depth: It has a memory depth of up to 10,000 samples per channel, which allows the user to capture and analyze complex waveforms.
- Triggering: The instrument features advanced triggering options, including pulse width, edge, and video triggering, which allows for accurate signal capture.
- Display: The Fluke 190-m2 has a large color display with a high resolution that enables the user to view and analyze waveforms with details in real-time.
- It also has built-in math functions, such as FFT, to perform signal processing and analysis.

DC Power Supply is available to provide a constant and stable voltage or current to a circuit. Regulated Power Supply (RPS) is used to provide the apt power supply for actuators, prototyping boards, and sensor modules. In medical device testing, the RPS can be used to power the medical device during testing, and to simulate different voltage and current levels to ensure that the device performs correctly under different conditions.
The Keithley 2280S-60-3 is a DC programmable power supply that offers a wide range of voltage and current output, with precision and accuracy down to the microampere and millivolt levels. It provides up to 60V and 3A of output power. Keithley 2280S-60-3 is a high-performance DC power supply that offers exceptional accuracy, reliability, and versatility for precision measurements and testing in a wide range of industries.
Here are some key features of the Keithley 2280S-60-3 DC power supply:
- High accuracy: It offers a basic accuracy of 0.03% for voltage and 0.1% for current, making it ideal for precision measurements in research and development applications.
- Low noise: The power supply has low output noise, making it suitable for testing sensitive electronic components and circuits.
- Multiple output modes: The Keithley 2280S-60-3 has several output modes, including constant voltage, constant current, and constant power, providing flexibility for various testing and production applications.
- Programmable: The power supply is programmable via its front panel or using SCPI commands over USB, GPIB, or LAN. This allows for automated testing and data collection.
- Safety features: The Keithley 2280S-60-3 has several safety features, including overvoltage, overcurrent, and over temperature protection, ensuring safe and reliable operation.
By the following methods it can be used in electronic testing:
- Powering up electronic circuits: The Keithley 2280S-60-3 can be used to power up electronic circuits, allowing the user to test their functionality and measure their performance under different conditions.
- Testing electronic components: The power supply can be used to test electronic components such as transistors, diodes, and resistors, by providing a stable voltage or current output to the component and measuring its response.
- Characterizing electronic devices: The Keithley 2280S-60-3 can be used to characterize electronic devices such as solar cells, LEDs, and sensors by providing a precise voltage or current and measuring the device's response.
- Stress testing: The power supply can be used to stress test electronic circuits by providing a higher voltage or current than the component is rated for, to determine its maximum performance.
- Burn-in testing: The power supply can be used in burn-in testing, where electronic components or circuits are subjected to a prolonged period of operation at high stress levels to detect potential issues before they fail in the field.

High Precision Function Generator is available to generate precise waveforms of different frequencies and amplitudes. External Test signals are taken from the Function Generator to analyse the signal conditioning circuits and actuator circuits.
In medical device testing, the Function Generator can be used to simulate the signals generated by sensors and other components in the medical device, and to test the response of the device to different signals.
The main feature that distinguishes a high precision function generator from a regular function generator is the level of accuracy and precision it can achieve in generating these waveforms. High precision function generators typically have very low distortion and jitter, high stability and repeatability, and precise amplitude and frequency control.
Some of the common uses of the FG420 function generator from Yokogawa in electronic testing include:
- Signal Simulation: The FG420 can be used to simulate various types of electrical signals, such as sine waves, square waves, triangular waves, and sawtooth waves. These signals can be used to simulate real-world conditions and test the performance of electronic devices under different signal conditions.
- Frequency Response Testing: The FG420 can be used to generate signals at specific frequencies to test the frequency response of electronic devices, such as filters, amplifiers, and oscillators.
- Timing and Synchronization: The FG420 can be used to generate precise timing signals and synchronize different electronic devices in a system. This is especially useful in applications such as data acquisition, where precise timing is critical.
- Analog and Digital Circuit Testing: The FG420 can be used to test both analog and digital circuits. It can be used to generate analog signals to test analog circuits and digital signals to test digital circuits.
- Calibration: The FG420 can be used to calibrate other electronic instruments, such as oscilloscopes and spectrum analyzers. The precise and stable signals generated by the FG420 can be used as a reference signal for calibrating other instruments.

A High Precision Digital Multimeter is available to measure electrical quantities such as voltage, current, resistance, and frequency with very high accuracy and resolution. It typically features a digital display that provides readings in numerical format, and may also have additional functions such as continuity testing, diode testing, and temperature measurement.
In medical device testing, the DMM can be used to measure the output of sensors and other components in the medical device, and to ensure that the device is functioning correctly within its specified parameters. The DMM is also used to check the batteries, power supplies and also to identify faulty components.
- The Agilent 3458A is a high-precision 8.5 digit digital multimeter, which means it has a resolution of up to 0.1 microvolts (µV) on DC voltage measurements. This high resolution allows it to measure very small changes in voltage, current, resistance, and other electrical quantities.
- In addition to its high resolution, the 3458A has a very low noise floor, which means it can accurately measure very low-level signals without being affected by electrical noise or interference. This makes it ideal for measuring small signals in electronic circuits and components.
- High Precision Digital Multimeters may be designed for use in specific environments, such as high-voltage testing or low-temperature testing, and may also offer additional features such as data logging, waveform analysis, and advanced measurement functions.