Name		Name	Last commit message	Last commit date
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IMN		IMN
images		images
source		source
suppliers		suppliers
2017-06-08_FindingSuppliers.md		2017-06-08_FindingSuppliers.md
LICENSE.txt		LICENSE.txt
Readme.md		Readme.md
viewme.png		viewme.png

Readme.md

Module: Cletus [](@description Piezo+Servo module)

Name

MDL-echomods_servopiezo

Title

Simply the servo and transducer module

Description

The servo/transducer part of the echOmods
version: V0.1
date: 29/04/2016
technology:
cost:80$
sourcing:Recycling a transducer from ebay, servo from anywhere (Amazon?)
language:
author: Kelu124

IOs

Inputs

ITF-A_gnd
ITF-B_5v
ITF-N_cc_motor_pwm
ITF-S_3_3v
ITF-mET_Transducer : for the signal coming out of the pulser (if through SMA)
ITF-mET_Piezo : connection to the piezo

Outputs

ITF-mET_Piezo : connection to the piezo
ITF-mET_Transducer : for the signal coming out of the pulser (if through SMA)

Key Components

Servo
Piezo

Information

What is it supposed to do?

The aim of this module is to interface the transducer and the servo, aka the physical parts, to the analog part of the modules chain. More to come with the Loftus head.

How does it work: block diagram

ITF-mET_Piezo->Piezo->ITF-mET_Piezo
ITF-N_cc_motor_pwm->Servo
ITF-B_5v->Servo

About the module

Discussion

Suppliers ?

A list of suppliers and some details is available here.

Choice of the servo

Pros

Simple to use

Cons

Slow sweeping

Constraint and limits

Need to find a servo which frequency is above 100hz (100hz -> 10ms period -> 1 line per 10ms is quite close)

Removing the noise?

Discussions

TODO

Remove the jitter (see image in Rdme)
Include notes

DONE

Get a 3.5MHz piezo

People

?

License

Cletus

The echOmods project and its prototypes (so Cletus) are open hardware, and working with open-hardware components.

Licensed under TAPR Open Hardware License (www.tapr.org/OHL)

Based on

The following work is base on a previous TAPR project, Murgen - and respects its TAPR license.

Files

cletus

Directory actions

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