Thursday, 23 April 2015

Week 11

Title: Presentation Day for FYP 1.

Objective:
  1. Present the slide show to the assessor.
  2. To explain and get the feedback from the assessor.

Method:
  1. Present and explain the objective and methodology of the project.
Result:

The slide show.













Conclusion:
The assessor like the idea of the project and give some advice about the future development for FYP 2.

Wednesday, 15 April 2015

Week 10

Title: The charger controller circuit for this project.

Objective:
  1. To transmit the power from piezo-electric efficiently.

Method:
  1. Research based on type of project.
Result:

PDQ High Speed Charge Drive

The PDQ amplifiers are the first commercially available charge drives for piezoelectric actuators. A charge drive is similar to a voltage amplifier except that piezoelectric hysteresis can be reduced to less than 1%.
In many applications, a charge drive can immediately replace a voltage amplifier when improved dynamic linearity is required. This can reduce or eliminate the need for feedback or feedforward control of hysteresis.
PiezoDrive charge drives are designed for both high-performance and ease-of-use. Compared to a standard high-voltage amplifier, there is only one additional control, the DC-gain, which sets the voltage-gain at low-frequencies.
The PDQ charge drives have the same exceptional bandwidth and output current as the PDX voltage amplifiers. This includes Dynamic Current Control which dramatically improves the maximum output current and allows the reproduction of larger amplitude waveforms with higher frequency.
In addition to the fast response, the PDQ drives also include: comprehensive overload protection; external shutdown; voltage, charge and current monitor outputs; and front-panel bias-voltage adjustment.

    ModelPDQ150bPDQ200b
    Voltage-30V to 150V*-30V to 200V*
    Peak Current2A1.5A
    Overload Time100ms100ms
    RMS Current1.6A1.1A
    Power Bandwidth9.5 kHz7.2 kHz
    Signal BandwidthGreater than 80 kHz (1uF Load)
    Charge Gain2.2, 6.2, 22, 62, 220, or custom uC/V
    Voltage Gain20 - 66 V/V
    OffsetFrom 0V to Full-Range
    InputDifferential, Zin = 22 kOhm
    Signal ConnectorsBNC input, BNC Monitor Outputs,
    Output Connectors4mm Plugs and 2-Way LEMO 0B
    Overload ProtectionThermal, current and voltage
    Noise3mV RMS
    Environment0 - 40 C (32-104 F)
    EnclosureDesktop, rack compatible
    Dimensions212.6 x 304.8 x 132.6 mm (w x d x h)
    Power Supply115V or 230V AC (selectable)



Conclusion:
The PDQ drives are housed in a desktop enclosure that can be bolted together in a side-by-side configuration. Mounting in a standard 19-inch rack is also possible with the addition of rack-mount handles.

Tuesday, 7 April 2015

Week 9

Title: The type of piezo-electric

Objective:
  1. To find suitable type of piezo-electric that is suitable for this project.

Method:
  1. Do the research in the internet.
  2. Find the available type in the market.
Result:
The coefficients d33 of a piezoelectric bar, (C / N) shown in Table I, link the amount of electrical charge (Coulomb), appearing on an electrode perpendicular to the axis 3, to the strain (Newton) applied on both ends.

Material
d33(10-12 C/N)
Quartz
2.3
BatiO3
90
PbtiO3
120
PZT
560
PZN-9PT
2500

The type of pieze-electric that will use for this project is PZT type because of its sensitivity and long-term period of lifetime that is suitable to use in this project,


Conclusion:
The type of piezo-electric must be hardy and can long last to make sure it can work efficiently. 

Wednesday, 1 April 2015

Week 8

Title: Battery for storage energy.


Objective:

  1. To find the suitable battery to use for this project.

Method:

  1. Make some research about the battery that can last longer and supply to small output.

Result:

The Fiamm FG10451 is a 6V 4.5Ah battery bloc offering a 5 year design life and is suitable for a multiple of applications such as fire alarms, security equipment, small DC systems and johnlite torches. The FG10451 battery is a universal common box size can be a suitable replacement for the following :


CSB GP645 F1, Johnlite 6V 4Ah, Power Battery PM6-4.5, Powersonic PS640, Ultra Max NP4.5-6


RATING
6V 4.5AH
LENGTH
70MM
WIDTH
47MM
HEIGHT
100MM
TOTAL HEIGHT
106MM
WEIGHT
0.7KG
TERMINAL
FAST-ON 4.8MM/0.187” (F1 TYPE)
SPECIFICATION
Conclusion:
The chosen battery is suitable to use in this final year project.