Hi,
I am using three outputs to control two DC motors. The motors do not run simultaneously. I'd like to use the remote-sensing of a power supply to control the voltage close to the motor terminals.
There are five possible states, controlled by three digital output lines:
000 - M1 off...
Someone pointed out to me that when salt is disolved in water that the volume of the water would not change.
While trying to learn how such a calculation would be made in chemistry I came across a web page that stated that there would actually be a 2.5% reduction in volume...
It doesn't look like we will be using pneumatic logic (not nearly as inexpensive as the person who suggested it was hoping it would be).
I have become interested in it though, very neat technology. I've performed a few web searches but haven't found many resources. Please post if you know of...
Purely pneumatic. I've been told these solutions exist with the advantage of being less expensive and easier to install than electro-pneumatic options.
Does anyone know of pneumatic valves that can be set to actuate air on for a specified period time after a specified period of time has elapsed?
I have never worked with something like this and am just looking for a name if it exists.
Thanks,
windo4life
Hi,
The lab I work in routinely uses an Envirotronics Dust Chamber to perform exposure tests on automotive components.
I am curious how dust chambers are calibrated. We have been told by Envirotronics that they will calibrate using a "mining dust collection pump" or an "opacity meter."...
I work in a lab that is performing ping hammer on automotive components in three directions: cross-car, fore-aft, and vertical.
We are looking for modes or natural frequencies in each of these directions.
Is there a specification or procedure detailing how to identify the first mode or...
Is there a specific accuracy or other specification one should strive for?
For instance, if calibrating a DMM how much more accurate must the calibration meter be?
Windo
Feel free to correct my vocabulary here (not sure if spectrum is the right term).
Are there issues with using a load cell in the lower part of its measurement spectrum? For instance, a load cell rated for 0 N to 2500 N, is it less accurate or precise in the 0 N to10 N range than it is in the...
