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App13: Magnetic Angle Sensor
Use the U4x1 USB interface to read data from a SPI device to measure the angle of a magnetic field.
Interface a Philips KMZ43T magnetic angle sensor and a Philips UZZ9001 signal conditioner combination to a U4x1 USB device. The Philips UZZ9001 has an SPI interface which is compatible with the U4x1.
From Orion Propulsion:
Kudos for your U421 product.
We needed a way to measure changes in the magnetic flux angle in a terfenol-d experiment for NASA. We selected the Philips KMZ43T sensor and UZZ9001 signal conditioner combo to measure the angle and the U421 USB discrete I⁄O device from USBmicro to interface the Philips parts to our PC USB port. The UZZ9001 has an SPI interface which was very easy to connect to the SPI port on the U421 and in no time at all we had the hardware breadboarded. For the basic software we found a similar project (#8) in the ODN which was easily modified to provide the initial code for testing and had this running in less than a day. Having unsuccessfully attempted several USB-based projects before, I was impressed by how easy it was to develop a USB based project using the USBmicro U421.
Orion Propulsion Inc.
|Hardware: U401 USB Interface U421 USB Interface U451 USB Interface|
Programming: USBm DLL Programming Download Files
Application Notes: U4x1 Application Notes Misc Applications and Information FAQ
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