Some time ago I queried about very small accelerometers. In addition to the
companies mentioned in the following list of responses, I have also dealt
with AMP Sensors (610)666-3500, which makes a sensor that measures
accelerations in the Y or Z axis or rotation about the Y axis. Thank you
to everyone who responded to my request!
Sincerely,
Marlene Martinez
Date: Tue, 28 Jun 1994 11:38:08 -0700
From: sabelman@roses.Stanford.EDU (Eric Sabelman)
Subject: accelerometers
We at the Palo Alto VA Rehab R&D Center have been using accelerometers for human
body motion analysis. We assemble 3-axis sensors from single axis surface-mount
devices made by IC Sensors in Milpitas, which were the smallest low cost
off-the-shelf packages we could find (model 3031, 0.3 inch square x 0.14 high =
200 cu mm). The silicon chips themselves are about 3 mm on a side.
Greg Kovacs at Stanford's Center for Integrated Systems is developing some
multi-axis chips; you could ask him if any are available for trial
(kovacs@glacier.stanford.edu).
-Eric Sabelman, section chief, Human/Machine Integration Section, VA RR&D Center
Via: uk.ac.swansea; Tue, 28 Jun 1994 19:35:00 +0100
From: Pierre Hubsch
Date: Tue, 28 Jun 94 19:40:01 BST
Subject: Re: accelerometers
Hi Marlene,
Kulite has a range of miniature accelerometers in their program; they boast
that they are the smalles devices available but I'm afreide they are still
bigger than 5 cubic mm.
Their address is: KULITE SEMICONDUCTOR PRODUCTS, INC
One Willow Tree Road
Leonia, New Jersey 07605
tel.: 201 461-0900
fax.: 201 461-0990
So long,
Pierre
Date: Tue, 28 Jun 1994 22:36:38 -0400 (EDT)
From: "Ben F. Willems"
Subject: Re: accelerometers
Content-type: TEXT/PLAIN; CHARSET=US-ASCII
Content-transfer-encoding: 7BIT
Dear Marlene:
I will also check in my office tomorrow (I have quite some info on
accelerometers there), I think PCB electronics maybe a good bet. Will let you
know later. 5 cubic mm is very small, though! You do mean a cube with sides
of 1.7 mm, right? Just checking. I will get back to you tomorrow.
Ben F. Willems
Hospital for Joint Diseases
Occupational and Industrial Orthopaedic Center
63 Downing Street
New York, NY 10014
U.S. of A.
Phone: (212) 255 6690 ext. 120
Fax: (212) 255 6754
Bitnet bitnet%"willemsb@nyuacf"
Internet in%"willemsb@acf.nyu.edu"
Compuserve 72344,3551 or in%"72344.3551@compuserve.com"
From: Rob Neal
Date: Wed, 29 Jun 1994 09:01:52 EST5EDT
Subject: Re: accelerometers
Priority: normal
X-mailer: WinPMail v0.99 (WRB2).
Marlene,
You wrote ...
> Dear BIOMCH-Lers,
>
> Does anyone know where I can find triaxial accelerometers that are
very
> small (less than 5 cubic mm) and lightweight? I will gladly
summarize
> responses. Thank you!
>
>
> Marlene Martinez
> Dept. of Integrative Biology
> Univ. of Calif. Berkeley
> (510)643-9048
> marlenem@garnet.berkeley.edu
Kistler of course sell triaxial accelerometers and are available
locally. Another company (in fact started by the guy who developed
Kistler) sell a range of products including triaxial accelerometers. If
you want details I will dig them up.
Rob
Robert Neal, PhD
Department of Human Movement Studies
The University of Queensland
QLD, AUSTRALIA
ph 61 7 365 6240
FAX 61 7 365 6877
EMAIL NEAL@HMS01.HMS.UQ.OZ.AU
Date: 29 Jun 94 16:04:12 EDT
From: Bob Redd
To: "INTERNET:marlenem@GARNET.BERKELEY.EDU"
Subject: accelerometers
Dear Marlene:
Unfortunately, a 5mm cubic sensor would be approximately 1.25mm x 1.25mm x
1.25mm. This is extremely small. We do however make a sensor which is one
(1) cubic centimeter (10mm x 10mm x 10mm). The 3-axis sensor is our model
#8694.
If you need information on it, let me know.
Regards,
Bob Redd
Biomechanics Product Manager
Kistler Instrument Corporation
1-800-7745-7484
From: carlijn@wfw.wtb.tue.nl
Subject: accelerometers
To: marlenem@garnet.berkeley.edu
Date: Thu, 30 Jun 94 9:46:11 MDT
Cc: carlijn@wfw.wtb.tue.nl (Carlijn Bouten)
X-Mailer: ELM [version 2.3 PL11]
Status: RO
X-Status:
Dear Marlene,
We use uniaxial piezoresistive accelerometers from ICSensors (Type
3031-010, size: 4x4x3 mm, weight: 0.3 gram, frequency response: 0-
600 Hz, range 10 g) for the measurement of accelerations during
human movement. We placed three uniaxial sensors at right angles
in a lightweight cube (7x7x7 mm) to obtain a triaxial accelero-
meter. The price of a uniaxial accelerometer is about $60,-.
Carlijn Bouten
Eindhoven University of Technology
Faculty of Mechanical Engineering
The Netherlands
e-mail:carlijn@wfw.wtb.tue.nl
Date: Thu, 30 Jun 1994 14:59:53 -0400 (EDT)
From: "Ben F. Willems"
Subject: Re: accelerometers
Content-type: TEXT/PLAIN; CHARSET=US-ASCII
Content-transfer-encoding: 7BIT
Hi Marlene:
My memory chips got messed up. It was not PC, but ENDEVCO. I'll give you both
addresses:
Endevco Corporation
30700 Rancho Viejo Road
San Juan Capistrano, CA 92675
(714) 493 8181
They have model 23, that has a side length of 6 mm and is a triaxial
accelerometer.
PCB Piezotronix, Inc.
3425 Walden Avenue
Depew, NY 14043-2495
(716 684 0001
They have subminiature accelerometers of about 5 mm, but they need to
be mounted on a triaxial connecter element.
Another company is Entran Devices, Inc
10 Washington Ave.
Fairfield, N.J. 07004 USA
1 800 635 0650
They have some small accelerometers, that are quite low profile, but a
bit larger in width.
Please let me know if you are able to find anything below 5 mm, will you?
Thanks in advance, talk to you later!
Ben F. Willems
Hospital for Joint Diseases
Occupational and Industrial Orthopaedic Center
63 Downing Street
New York, NY 10014
U.S. of A.
Phone: (212) 255 6690 ext. 120
Fax: (212) 255 6754
Bitnet bitnet%"willemsb@nyuacf"
Internet in%"willemsb@acf.nyu.edu"
Compuserve 72344,3551 or in%"72344.3551@compuserve.com"
Date: Fri, 01 Jul 94 10:38:22 TUR
From: Ozan Akkus
Subject: Re: accelerometers
The smallest triaxial accelerometer that I have seen exists in the
products catalogue of Bruel & Kjaer company (in Denmark).The one that may
be suitable for your purpose has the following specification.
B&K 4326 (Miniature Triaxial Accelerometer)
Charge: 0.3pc/m/s2
Sensitivity :
Voltage: 0.3mV/m/s2
Frequency Range: 0.1-13000 Hz
Mounted Resonance: 40KHz
Weight : 10gr
The only other available accelerometer is gigantic for your application;
it is 55gr.
I hope this may help you in the issue.
companies mentioned in the following list of responses, I have also dealt
with AMP Sensors (610)666-3500, which makes a sensor that measures
accelerations in the Y or Z axis or rotation about the Y axis. Thank you
to everyone who responded to my request!
Sincerely,
Marlene Martinez
Date: Tue, 28 Jun 1994 11:38:08 -0700
From: sabelman@roses.Stanford.EDU (Eric Sabelman)
Subject: accelerometers
We at the Palo Alto VA Rehab R&D Center have been using accelerometers for human
body motion analysis. We assemble 3-axis sensors from single axis surface-mount
devices made by IC Sensors in Milpitas, which were the smallest low cost
off-the-shelf packages we could find (model 3031, 0.3 inch square x 0.14 high =
200 cu mm). The silicon chips themselves are about 3 mm on a side.
Greg Kovacs at Stanford's Center for Integrated Systems is developing some
multi-axis chips; you could ask him if any are available for trial
(kovacs@glacier.stanford.edu).
-Eric Sabelman, section chief, Human/Machine Integration Section, VA RR&D Center
Via: uk.ac.swansea; Tue, 28 Jun 1994 19:35:00 +0100
From: Pierre Hubsch
Date: Tue, 28 Jun 94 19:40:01 BST
Subject: Re: accelerometers
Hi Marlene,
Kulite has a range of miniature accelerometers in their program; they boast
that they are the smalles devices available but I'm afreide they are still
bigger than 5 cubic mm.
Their address is: KULITE SEMICONDUCTOR PRODUCTS, INC
One Willow Tree Road
Leonia, New Jersey 07605
tel.: 201 461-0900
fax.: 201 461-0990
So long,
Pierre
Date: Tue, 28 Jun 1994 22:36:38 -0400 (EDT)
From: "Ben F. Willems"
Subject: Re: accelerometers
Content-type: TEXT/PLAIN; CHARSET=US-ASCII
Content-transfer-encoding: 7BIT
Dear Marlene:
I will also check in my office tomorrow (I have quite some info on
accelerometers there), I think PCB electronics maybe a good bet. Will let you
know later. 5 cubic mm is very small, though! You do mean a cube with sides
of 1.7 mm, right? Just checking. I will get back to you tomorrow.
Ben F. Willems
Hospital for Joint Diseases
Occupational and Industrial Orthopaedic Center
63 Downing Street
New York, NY 10014
U.S. of A.
Phone: (212) 255 6690 ext. 120
Fax: (212) 255 6754
Bitnet bitnet%"willemsb@nyuacf"
Internet in%"willemsb@acf.nyu.edu"
Compuserve 72344,3551 or in%"72344.3551@compuserve.com"
From: Rob Neal
Date: Wed, 29 Jun 1994 09:01:52 EST5EDT
Subject: Re: accelerometers
Priority: normal
X-mailer: WinPMail v0.99 (WRB2).
Marlene,
You wrote ...
> Dear BIOMCH-Lers,
>
> Does anyone know where I can find triaxial accelerometers that are
very
> small (less than 5 cubic mm) and lightweight? I will gladly
summarize
> responses. Thank you!
>
>
> Marlene Martinez
> Dept. of Integrative Biology
> Univ. of Calif. Berkeley
> (510)643-9048
> marlenem@garnet.berkeley.edu
Kistler of course sell triaxial accelerometers and are available
locally. Another company (in fact started by the guy who developed
Kistler) sell a range of products including triaxial accelerometers. If
you want details I will dig them up.
Rob
Robert Neal, PhD
Department of Human Movement Studies
The University of Queensland
QLD, AUSTRALIA
ph 61 7 365 6240
FAX 61 7 365 6877
EMAIL NEAL@HMS01.HMS.UQ.OZ.AU
Date: 29 Jun 94 16:04:12 EDT
From: Bob Redd
To: "INTERNET:marlenem@GARNET.BERKELEY.EDU"
Subject: accelerometers
Dear Marlene:
Unfortunately, a 5mm cubic sensor would be approximately 1.25mm x 1.25mm x
1.25mm. This is extremely small. We do however make a sensor which is one
(1) cubic centimeter (10mm x 10mm x 10mm). The 3-axis sensor is our model
#8694.
If you need information on it, let me know.
Regards,
Bob Redd
Biomechanics Product Manager
Kistler Instrument Corporation
1-800-7745-7484
From: carlijn@wfw.wtb.tue.nl
Subject: accelerometers
To: marlenem@garnet.berkeley.edu
Date: Thu, 30 Jun 94 9:46:11 MDT
Cc: carlijn@wfw.wtb.tue.nl (Carlijn Bouten)
X-Mailer: ELM [version 2.3 PL11]
Status: RO
X-Status:
Dear Marlene,
We use uniaxial piezoresistive accelerometers from ICSensors (Type
3031-010, size: 4x4x3 mm, weight: 0.3 gram, frequency response: 0-
600 Hz, range 10 g) for the measurement of accelerations during
human movement. We placed three uniaxial sensors at right angles
in a lightweight cube (7x7x7 mm) to obtain a triaxial accelero-
meter. The price of a uniaxial accelerometer is about $60,-.
Carlijn Bouten
Eindhoven University of Technology
Faculty of Mechanical Engineering
The Netherlands
e-mail:carlijn@wfw.wtb.tue.nl
Date: Thu, 30 Jun 1994 14:59:53 -0400 (EDT)
From: "Ben F. Willems"
Subject: Re: accelerometers
Content-type: TEXT/PLAIN; CHARSET=US-ASCII
Content-transfer-encoding: 7BIT
Hi Marlene:
My memory chips got messed up. It was not PC, but ENDEVCO. I'll give you both
addresses:
Endevco Corporation
30700 Rancho Viejo Road
San Juan Capistrano, CA 92675
(714) 493 8181
They have model 23, that has a side length of 6 mm and is a triaxial
accelerometer.
PCB Piezotronix, Inc.
3425 Walden Avenue
Depew, NY 14043-2495
(716 684 0001
They have subminiature accelerometers of about 5 mm, but they need to
be mounted on a triaxial connecter element.
Another company is Entran Devices, Inc
10 Washington Ave.
Fairfield, N.J. 07004 USA
1 800 635 0650
They have some small accelerometers, that are quite low profile, but a
bit larger in width.
Please let me know if you are able to find anything below 5 mm, will you?
Thanks in advance, talk to you later!
Ben F. Willems
Hospital for Joint Diseases
Occupational and Industrial Orthopaedic Center
63 Downing Street
New York, NY 10014
U.S. of A.
Phone: (212) 255 6690 ext. 120
Fax: (212) 255 6754
Bitnet bitnet%"willemsb@nyuacf"
Internet in%"willemsb@acf.nyu.edu"
Compuserve 72344,3551 or in%"72344.3551@compuserve.com"
Date: Fri, 01 Jul 94 10:38:22 TUR
From: Ozan Akkus
Subject: Re: accelerometers
The smallest triaxial accelerometer that I have seen exists in the
products catalogue of Bruel & Kjaer company (in Denmark).The one that may
be suitable for your purpose has the following specification.
B&K 4326 (Miniature Triaxial Accelerometer)
Charge: 0.3pc/m/s2
Sensitivity :
Voltage: 0.3mV/m/s2
Frequency Range: 0.1-13000 Hz
Mounted Resonance: 40KHz
Weight : 10gr
The only other available accelerometer is gigantic for your application;
it is 55gr.
I hope this may help you in the issue.