Gyro. What is it?
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Posts: 46,084
Hello all,
I was on a summer proj. and back to doin some BS2 now (getting ready
for winter activities - if u know what I mean).
I've seen quite a few postings on gyro earlier. I apologize for
missing those. Could you please give me info on these topics and
also suggest any ideas on my project plan?
thanks a lot in advance for all you help (and patience)
1. What is a gyro
2. How can I interface this with BS2 (and am sure I need some sort of
motor speed control device - may be Al Williams')
3. Any existing project ideas that I can try out.
This is what I want to do:
a. Build a flying object that uses motors that will receive commands
from BS2 (and some speed control chip) to hover as an interior object
b. Let this object hover under the ceiling at about 1 foot distance -
using some sort of distance measuring component (panasonic IR sensor
may be)
c. I'd like to keep this to use a single motor if possible that uses
2 or 3 servos to handle its axis.
I might be wrong in what I'm expecting to do. But, I'd like to learn
from your ideas and thoughts.
thanks a lot everybody
nagi
I was on a summer proj. and back to doin some BS2 now (getting ready
for winter activities - if u know what I mean).
I've seen quite a few postings on gyro earlier. I apologize for
missing those. Could you please give me info on these topics and
also suggest any ideas on my project plan?
thanks a lot in advance for all you help (and patience)
1. What is a gyro
2. How can I interface this with BS2 (and am sure I need some sort of
motor speed control device - may be Al Williams')
3. Any existing project ideas that I can try out.
This is what I want to do:
a. Build a flying object that uses motors that will receive commands
from BS2 (and some speed control chip) to hover as an interior object
b. Let this object hover under the ceiling at about 1 foot distance -
using some sort of distance measuring component (panasonic IR sensor
may be)
c. I'd like to keep this to use a single motor if possible that uses
2 or 3 servos to handle its axis.
I might be wrong in what I'm expecting to do. But, I'd like to learn
from your ideas and thoughts.
thanks a lot everybody
nagi
Comments
thanks a lot for u'input. When u say, "roll, pitch and yaw", what axis
would they be in? s
Original Message
From: Dennis P. O'Leary [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=OnkvzZ7ApMHhxKbCrAGFr5NYqSR7bquWVSCTkYnUXM59Quf6S0PiFjfWp_INk3M_1c_VPdjd68qT_Us]doleary@h...[/url
Sent: Tuesday, July 31, 2001 11:47 PM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] Gyro. What is it?
A gyro is often shorthand for gyro stabilizer. It monitors rotational
motion about one of three axes (roll, pitch and yaw) of a flying (or
floating) object, and sends the rotational signal to a feedback control
system containing actuators that maintain the craft level and relatively
stable about that axis. In the past, they were based on spinning
gyroscopes, hence the name gyro. More recently, they are MEMS-based
microchip devices that accurately record rotational velocity. One
example
is made by Murata, and weighs only 1 gram. I use them in OEM medical
devices for human motion monitoring, but it is difficult to obtain them
in
small quantities (< 100). Other examples are readily available, and
found
in suppliers such as Digikey. For interfacing, you will need to use an
analog-to-digital converter, ported to a BS2. As to project plans, a
hovercraft would appear to require a relatively complex actuator system
to
keep it stable and level, but I'm not an expert in that area.
Dennis
Dennis O'Leary
WSR Inc
Pasadena CA
Original Message
From: nags@c... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=PJ8TZ-Z32NomcOp7S_FICrAIdvSyoQwh-msdKCJDJYybLRQf_mcvvoIhZiMARpJBX3BigJVOriucQPJn]nags@c...[/url
Sent: Tuesday, July 31, 2001 5:28 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Gyro. What is it?
Hello all,
I was on a summer proj. and back to doin some BS2 now (getting ready
for winter activities - if u know what I mean).
I've seen quite a few postings on gyro earlier. I apologize for
missing those. Could you please give me info on these topics and
also suggest any ideas on my project plan?
thanks a lot in advance for all you help (and patience)
1. What is a gyro
2. How can I interface this with BS2 (and am sure I need some sort of
motor speed control device - may be Al Williams')
3. Any existing project ideas that I can try out.
This is what I want to do:
a. Build a flying object that uses motors that will receive commands
from BS2 (and some speed control chip) to hover as an interior object
b. Let this object hover under the ceiling at about 1 foot distance -
using some sort of distance measuring component (panasonic IR sensor
may be)
c. I'd like to keep this to use a single motor if possible that uses
2 or 3 servos to handle its axis.
I might be wrong in what I'm expecting to do. But, I'd like to learn
from your ideas and thoughts.
thanks a lot everybody
nagi
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[noparse][[/noparse]Non-text portions of this message have been removed]
motion about one of three axes (roll, pitch and yaw) of a flying (or
floating) object, and sends the rotational signal to a feedback control
system containing actuators that maintain the craft level and relatively
stable about that axis. In the past, they were based on spinning
gyroscopes, hence the name gyro. More recently, they are MEMS-based
microchip devices that accurately record rotational velocity. One example
is made by Murata, and weighs only 1 gram. I use them in OEM medical
devices for human motion monitoring, but it is difficult to obtain them in
small quantities (< 100). Other examples are readily available, and found
in suppliers such as Digikey. For interfacing, you will need to use an
analog-to-digital converter, ported to a BS2. As to project plans, a
hovercraft would appear to require a relatively complex actuator system to
keep it stable and level, but I'm not an expert in that area.
Dennis
Dennis O'Leary
WSR Inc
Pasadena CA
Original Message
From: nags@c... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=R7WiYdKjoB8jGTznGNk1u-eR5cMCb5NbJo3xOjklh3QgVHWt3gmgqnQ3c40S4_QFRy2i5PSfdGyy9zYkHA]nags@c...[/url
Sent: Tuesday, July 31, 2001 5:28 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Gyro. What is it?
Hello all,
I was on a summer proj. and back to doin some BS2 now (getting ready
for winter activities - if u know what I mean).
I've seen quite a few postings on gyro earlier. I apologize for
missing those. Could you please give me info on these topics and
also suggest any ideas on my project plan?
thanks a lot in advance for all you help (and patience)
1. What is a gyro
2. How can I interface this with BS2 (and am sure I need some sort of
motor speed control device - may be Al Williams')
3. Any existing project ideas that I can try out.
This is what I want to do:
a. Build a flying object that uses motors that will receive commands
from BS2 (and some speed control chip) to hover as an interior object
b. Let this object hover under the ceiling at about 1 foot distance -
using some sort of distance measuring component (panasonic IR sensor
may be)
c. I'd like to keep this to use a single motor if possible that uses
2 or 3 servos to handle its axis.
I might be wrong in what I'm expecting to do. But, I'd like to learn
from your ideas and thoughts.
thanks a lot everybody
nagi
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Referenced to a flying aircraft, roll refers to rotation about the long axis
of the fusilage (or aircraft body), pitch refers to up or down motion of the
aircraft's nose, and yaw refers to left or right turning motions while
flying level. Note that actual aircraft motions involve simultaneous
actions or components of all three. So roll, pitch and yaw are angular
equivalents of the x, y, and z axes of a linear, 3-dimensional coordinate
system.
Dennis
Original Message
From: Nagi Babu [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ALmbZnNvcRBUKI8kkaeTF76vRXj_K2-E0JHg3DFKHakllqdNl4BjaY3N8hUaptJLzNM6ZGozZ-w]nags@c...[/url
Sent: Tuesday, July 31, 2001 9:41 PM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] Gyro. What is it?
Dennis,
thanks a lot for u'input. When u say, "roll, pitch and yaw", what axis
would they be in? s
Original Message
From: Dennis P. O'Leary [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=z1zqZi7K-nkslES2J27PSAtEp5wyyt8jTJ0Lh_d3-xZrDGX8dnpr0FonyYuA07_9oNxQUa-vZW6uM_o6]doleary@h...[/url
Sent: Tuesday, July 31, 2001 11:47 PM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] Gyro. What is it?
A gyro is often shorthand for gyro stabilizer. It monitors rotational
motion about one of three axes (roll, pitch and yaw) of a flying (or
floating) object, and sends the rotational signal to a feedback control
system containing actuators that maintain the craft level and relatively
stable about that axis. In the past, they were based on spinning
gyroscopes, hence the name gyro. More recently, they are MEMS-based
microchip devices that accurately record rotational velocity. One
example
is made by Murata, and weighs only 1 gram. I use them in OEM medical
devices for human motion monitoring, but it is difficult to obtain them
in
small quantities (< 100). Other examples are readily available, and
found
in suppliers such as Digikey. For interfacing, you will need to use an
analog-to-digital converter, ported to a BS2. As to project plans, a
hovercraft would appear to require a relatively complex actuator system
to
keep it stable and level, but I'm not an expert in that area.
Dennis
Dennis O'Leary
WSR Inc
Pasadena CA
Original Message
From: nags@c... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ALmbZnNvcRBUKI8kkaeTF76vRXj_K2-E0JHg3DFKHakllqdNl4BjaY3N8hUaptJLzNM6ZGozZ-w]nags@c...[/url
Sent: Tuesday, July 31, 2001 5:28 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Gyro. What is it?
Hello all,
I was on a summer proj. and back to doin some BS2 now (getting ready
for winter activities - if u know what I mean).
I've seen quite a few postings on gyro earlier. I apologize for
missing those. Could you please give me info on these topics and
also suggest any ideas on my project plan?
thanks a lot in advance for all you help (and patience)
1. What is a gyro
2. How can I interface this with BS2 (and am sure I need some sort of
motor speed control device - may be Al Williams')
3. Any existing project ideas that I can try out.
This is what I want to do:
a. Build a flying object that uses motors that will receive commands
from BS2 (and some speed control chip) to hover as an interior object
b. Let this object hover under the ceiling at about 1 foot distance -
using some sort of distance measuring component (panasonic IR sensor
may be)
c. I'd like to keep this to use a single motor if possible that uses
2 or 3 servos to handle its axis.
I might be wrong in what I'm expecting to do. But, I'd like to learn
from your ideas and thoughts.
thanks a lot everybody
nagi
To UNSUBSCRIBE, just send mail to:
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[noparse][[/noparse]Non-text portions of this message have been removed]
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(these are the measuring devices which calculates the acceleration of the
object on which they are fastened) which all uses an inertial platform
system and a two axis accelerometers to calculate the position of the AGV in
a two dimensional space.
An inertial platform system (INS with 3 accelerometers) is also used in all
aircrafts all over the world as an independent position measuring system.
(In most aircrafts, there are 3 independent INS systems). A GPS still needs
some sattelites (which can be set off any time by the US Army) to determine
his position but an INS system is complete independent and therefore still
used in modern aircrafts and is therfore more safe then a GPS. (A flight
with an INS from Brussels to Tokyo gives a fault from ony 2 nautical miles
when arriving Tokio). You also can use fixed well known points to
recalibrate the measuring system (which is done in all aircrafts).
Hope this was helpfull.
Peter, Belgium
Sorry for my crappy English.
Some links
http://www.spp.co.jp/sssj/sirikon-e.html
http://www.doc.ic.ac.uk/~nd/surprise_97/journal/vol1/jmd/
http://www.entran.com/atoc.htm
http://www.dseurope.com/
Oorspronkelijk bericht
Van: Dennis P. O'Leary [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ICiIcf2oj5I63TOlR_L4zp0xnthz0uDkmVz1GOkEL9X6_RI3iytQCv1yqLKPifLBcgeBXhsR8OGj-Tg]doleary@h...[/url
Verzonden: woensdag 1 augustus 2001 6:47
Aan: basicstamps@yahoogroups.com
Onderwerp: RE: [noparse][[/noparse]basicstamps] Gyro. What is it?
at is it?
Hello all,
I was on a summer proj. and back to doin some BS2 now (getting ready
for winter activities - if u know what I mean).
I've seen quite a few postings on gyro earlier. I apologize for
missing those. Could you please give me info on these topics and
also suggest any ideas on my project plan?
thanks a lot in advance for all you help (and patience)
1. What is a gyro
2. How can I interface this with BS2 (and am sure I need some sort of
motor speed control device - may be Al Williams')
3. Any existing project ideas that I can try out.
This is what I want to do:
a. Build a flying object that uses motors that will receive commands
from BS2 (and some speed control chip) to hover as an interior object
b. Let this object hover under the ceiling at about 1 foot distance -
using some sort of distance measuring component (panasonic IR sensor
may be)
c. I'd like to keep this to use a single motor if possible that uses
2 or 3 servos to handle its axis.
I might be wrong in what I'm expecting to do. But, I'd like to learn
from your ideas and thoughts.
thanks a lot everybody
nagi