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A primer on binary-arithmetic rounding - 01/21/99 EDN-Design Ideas - (Scroll to find this one) As digital communications and data compression/decompression proliferate, signal-processing functions grow in importance. Whether you’re dealing with hard-wired logic or programmable engines, an understanding of binary-arithmetic rounding is important in getting correct and consistent results. Before we discuss rounding, consider a binary number (Figure 1) Page includes
several designs. Design by Tom Balph, Motorola SPS, Tempe, AZ
An introduction to acoustic thermometry 04/21/11 EDN Technical Article: Use an ultrasonic transducer to measure air temperature in an olive jar. Design by Jim Williams, EDN's most revered contributor, passed away in June 2011 after a stroke. He was 63.
An Ultrasonic Parking Radar Build it and avoid those parking mishaps. __ SiliconChip
AN131An Introduction to Acoustic Thermometry Linear Technology AN131 __ Designed by Jim WilliamsApr 26th, 2011
Bat Detector The Simple Bat Detector is a frequency division type device. Frequency division type detectors allow you to hear ultrasonic sound by digitally scaling the frequency down into the human hearing range. For instance, a western pipistrelle bat emits ultrasonic sound in the range __ Designed by Tony Messina-Las Vegas, NV
Build a Large Ultrasonic Cleaner Most readers would know that you can obtain small ultrasonic cleaners for jewellery and similar small items. So why not a much larger version? It would be great for cleaning automotive and other mechanical parts, fabrics which cannot be machine washed, ornate bric-a-brac and a host of other hard-to-clean items. __ SiliconChip
Build a Simple Circuit Bat Detector The Simple Bat Detector is a frequency division type device. Frequency division type detectors allow you to hear ultrasonic sound by digitally scaling the frequency down into the human hearing range. For instance, a western pipistrelle bat emits ultrasonic sound in the range __ Designed by Tony Messina-Las Vegas, NV
Build an Ultrasonic Proximity Detector Detect objects through ultrasonic sound waves. __ Contact: Jameco Electronics
Charge Integrator-175.0 - Circuit Ideas for Designers App Note __ Advanced Linear Devices, Inc
Charge Integrator-42001.0 - Circuit Ideas for Designers App Note __ Advanced Linear Devices, Inc
Differential Integrator with Frequency Controlled Gain - Circuit Ideas for Designers App Note __ Advanced Linear Devices, Inc
Dog Whistle - It's well known that many animals are particularly sensitive to high-frequency sounds that humans can't hear. Many commercial pest repellers based on this principle are available, most of them operating in the range of 30 to 50 kHz. __ Designed by Tomaz Lazar-Ljubljana, Slovenia
Fast Integer Multipliers Fit In FPGA - 05/12/94 EDN-Design Ideas You can fit a fast and compact digital multiplier into a field-programmable gate array(FPGA]. The technique involves using small look-up tables to find partial products and then adding the partial products. The key factor for making the design compact, fast, and easy to implement is to make the look-up tables for the partial products as small as possible. This multiplier can quickly multiply a number by a constant; changing the constant momentarily takes the multiplier off-line Design by Kenneth David Chapman, Xilinx Ltd, byfleet, Surrey, UK
Guider Camera Signal Processing & Bias Voltages - Each signal processing channel features a well-known dual-slope integrator circuit topology, optimized in this case for fast-settling time
Introduction to acoustic thermometry 04/21/11 EDN Technical Article: Use an ultrasonic transducer to measure air temperature in an olive jar. Design by Jim Williams, EDN's most revered contributor, passed away in June 2011 after a stroke. He was 63.
Introduction to Acoustic Thermometry Linear Technology AN131 __ Designed by Jim WilliamsApr 26th, 2011
IR Detector/Emitter This is a very basic infrared detector/emitter circuit. One major downside of this circuit, is that ambient infrared light will interfere with its detecting obstacles __ Designed by Andy Wilson
Medium Power 40Khz Ultrasound Transducer Driver This crystal controlled circuit drives a 40KHz piezo transducer with a 30v peak to peak signal. . . Circuit by Dave Johnson P.E.-July 9, 2006
PIC16F873 Ultrasonic Range Meter - On these pages, I will introduce the Ultrasonic Range Meter with PIC16F873. As for the range meter which doesn't use PIC, refer to "Ultrasonic Range Meter". I created the PCB pattern for this circuit using EAGLE CAD. With this circuit, the following features of PIC16F873 are used. __ Designed by Seiichi Inoue
Receiver-Ultrasonic Switch - The circuit described generates (transmits) ultrasonic sound of frequency between 40 and 50 kHz. As with any other remote control system this cirucit comprises of a mini transmitter and a receiver circuit. Transmitter generates ultrasonic sound and the receiver senses ultrasonic sound from the transmitter and switches on a relay __ Designed by Andy Wilson
Simple Light & Sound Indicator for Mains Power Supply - While repairing or installing electrical machines in a building, the AC mains power supply is switched off from the mains electrical switchboard installed outside the building. There is a chance that __ Electronics Projects for You |
