Miroslav Novák

DataLogger - high speed recorder of eight measured variables on the SD-Card

DataLogger is a tiny autonomous device for measuring high temperatures in ten locations 1000 times per second and storing the data on the SD-Card.

This device is developed for recording temperature variations during experimental plasma coating. DataLogger is placed together with rotating samples in the plasma chamber and cooled by water.

After the measurements, the recorded data are loaded from the SD-Card to the computer by a special software into the CSV file format.

Block schematics of the DataLogger

Parameters of the digital part:

Resolution:	10 bit
Number of inputs:	8
Voltage range:	0-2.54V without amplifiers
Sampling rate:	1000 samples per second for all 8 inputs in parallel
Storage medium:	standard (non HD) SD-Card up to 2GB
Record density:	102 samples per kilobyte
Recording duration:	29 hours per GB
Control:	Start/Stop buttons or signals for external time synchronization
Power source:	3.3V
Dimension of PCB:	a circle of diameter 53mm and height 10mm including components and inserted SD-Card

I am the author of the circuit and firmware of the digital part. The author of the analogue part is Ondřej Kovařík, who also realized the final device.

Photos

Offer

The aim of this web page is to present the DataLogger and also to announce the device or its particular components as presented or customized according to customers needs.

For more information send me a mail.

 

E-mail: novakmiroslavpost.cz