Accelerometer Testing of Loudspeaker Drivers

[gdan]

I received a new batch of PCBs and Front Panels for the AP-2, the new version of the ACH-01 accelerometer amplifier.
I also provide detailed documentation to build the amplifier.
If someone is interested, send me a message.

 

[billy pilgrim]

George,
Received the boards & front panels yesterday, they look great, can't wait to build it up & get going.
Thanks again.

 

[gdan]

PCBs and Front Panels for the AP-2 accelerometer amplifier are available.

If someone is interested, send me a message.

 

[teckels]

I received the PCB and front panel for the AP-2 accelerometer amplifier.
I look forward to constructing the project and making measurements with the AP-2.
Thanks for designing and providing this project.

 

[gdan]

Some PCBs and Front Panels for the AP-2 accelerometer amplifier are still available.
If someone is interested, send me a message.

 

[dgmartin]

Thanks George for making this available.

I have a few questions:
1. What is the BOM cost for stuffing the board?
2. Do you have a Mouser, Digikey… BOM available?
3. The front panel is made for which enclosure model?

 

[Markw4]

First question might be which accelerometer sensor are you planning on using? There are some Chinese ones that might be suitable. Cost for that item may be a significant cost of the project.

 

[dgmartin]

Considering ACH-01’s

 

[Markw4]

Anyone have them in stock?

 

[gdan]

I have a few questions:
1. What is the BOM cost for stuffing the board?
2. Do you have a Mouser, Digikey… BOM available?
3. The front panel is made for which enclosure model?

1. The cost is about 95 Euros, except the PCB, the Front Panel and the ACH-01. I made this cost estimation about a year ago.

2. Yes, with the order of PCB and Front Panel, I include a Parts list with component order codes from Farnel and Mouser.

3. The front panel is for a Hammond 1590 aluminum box

 

[gdan]

According to TE Conectivity (the manufacturing company), the ACH-01-04 with 12" wires is active but out of stock at the moment.

This happened also several times in the past.

So if you cannot find it second hand, I believe it will be available soon.

 

[dgmartin]

Anyone have them in stock?

There are some on eBay

FYI, TE 801M1-0200’s seems close enough (adjusting input voltage) and can be found on sale for 29USD at Newark.

 

[Boden]

@dgmartin: I was not able to locate that sensor at Newark. Do you happen to have a link or a Newark part nr? Google did not bring me any further either..

 

[dgmartin]

PN is 805m1-0200 (200g). Searching « te 805m1-0200 newark » from Google should make it the top result. Unfortunately they are « Not currently stocked » (maybe the reason for the sale). There is currently one ACH-01-04/10 (the one with unterminated wires that George was referring to above) on eBay at 39.99usd from seller « wolfborg1 ». I don’t know what was the MSRP for these but looking at comparably spec’ed alternatives from TE (such as 805M1’s) that seems reasonable.

 

[gdan]

The ACH-01-04/10 is the same as ACH-01-03.
The only diffrence is that the ACH-01-03 has a very convenient connector and a shielded cable,
while the ACH-01-04/10 has three 12" wires and no connector.

regards
George

 

[dgmartin]

Received the AP-2 front panel and PCB yesterday. Thanks again for making this available George!

 

[Fluss]

Hi George, do still have pcb and panel in stock? If so i would like to buy a set.

 

[gdan]

PCBs and Front Panels are still available.

I have sent you a message, please check.

George

 

[gdan]

ACH-01 accelerometer seems to be out of production now. I am looking for other sensors that could be used with my amplifer.

A good alternative, with also a nice price, is the "584-eval-ADXL1005Z" from Mouser.
It is a very small Evaluation Board for the ADXL1005 Analog Devices chip.

Another possibility is the 805M1-0200 sensor from Measurement Specialties.

Both have analog outputs and need some cabling for connection to the amplifier.

Your comments on the above sensors or any other proposals are welcome.

 

[Fluss]

https://www.elfa.se/sv/acceleromete...y-1001220/p/30353798?redirectQuery=303-53-798
They still have 111 pcs in stock, in Swedish but they send international