Verification Activities for Device Components


Introduction

To ensure proper function of a device within the bounds of its specifications, one must ensure that the constituent parts of the device function as they were intended. This protocol will ensure the overall functionality of various components for the device.

Methods

The easiest way to verify the functionality of the parts that make up a device, if and only if they are parts purchased from a manufacturer with their own specifications and quality control/assurance systems in place is simply to ensure that the parts are used within the scope of their nominal ranges as specified in their own specification sheets (e.g. supply voltage, load conditions, etc.). If this is such the case then the verification activities for those parts is simply an examination of the specifications of the parts and ensuring that the device of which they comprise does not exceed their standard operating ranges

Applicable Parts within Project Scope

  • Motor (Insert Part Number, Manufacturer, Description Here)
  • Tensioner (Insert Part Number, Manufacturer, Description Here)
  • Potentiometer (Insert Part Number, Manufacturer, )
  • Microcontroller (Insert Part Number, Arduino, Arduino Nano RP2040 Microcontroller)
  • Battery (Insert Part Number, Manufacturer, Description Here)
  • Etc.

Results:

Motor is verified to work under nominal voltage of 24 V, with a minimum current of 0.75 amps, any less and the motor functions at a lower rotational speed and possibly overall power output. The motor has also been confirmed to operate at voltage of 18 V with an increased current of 1 amp, conclusion is that the device needs at least 18 Watts of power input to function within its nominal specifications

Potentiometers were verified to work at the required precision but were susceptible to 60 Hz noise in their measurements, changes were made in the circuit to prevent the effects, an electrolytic capacitor was placed in the pullup position between the output node and the ground which effectively mitigated the issue

The microcontroller was confirmed to work, to function connector pins had to hard soldered into place and then resoldered during testing as the connection from the initial soldering was insufficient