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Measuring and Test Circuit

Index 8



Crystal Tester, #2

Published:2013/2/27 20:46:00 Author:muriel | Keyword: Crystal Tester, #2

Crystal Tester, #2
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Crystal Tester, #1

Published:2013/2/27 20:46:00 Author:muriel | Keyword: Crystal Tester, #1

Crystal Tester, #1
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Continuity Tester, Smart

Published:2013/2/27 20:43:00 Author:muriel | Keyword: Continuity Tester, Smart

Continuity Tester, Smart
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Continuity Tester, Low-Voltage

Published:2013/2/27 20:42:00 Author:muriel | Keyword: Continuity Tester, Low-Voltage

Continuity Tester, Low-Voltage
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Christmas Lights Tester

Published:2013/2/27 20:39:00 Author:muriel | Keyword: Christmas Lights Tester

Christmas Lights Tester
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Bug Detectors

Published:2013/2/27 20:36:00 Author:muriel | Keyword: Bug Detectors

Bug Detectors
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Battery Tester for 1.5 & 9V

Published:2013/2/27 20:27:00 Author:muriel | Keyword: Battery Tester, 1.5 & 9V

Battery Tester for 1.5 & 9V
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Triac speed measuring circuit

Published:2013/2/26 3:08:00 Author:Ecco | Keyword: Triac speed measuring

Triac speed measuring circuit
Triac speed measuring circuit is shown as figure.   (View)

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Simple Field Strength Meters

Published:2013/2/25 20:25:00 Author:muriel | Keyword: Simple Field Strength Meters

Simple Field Strength Meters
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RF field meter

Published:2013/2/25 20:24:00 Author:muriel | Keyword: RF field meter

RF field meter
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FIELD STRENGTH METER Mk II

Published:2013/2/25 20:23:00 Author:muriel | Keyword: FIELD STRENGTH METER Mk II

FIELD STRENGTH METER Mk II
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Field Strength Meter MkI

Published:2013/2/25 20:22:00 Author:muriel | Keyword: Field Strength Meter MkI

Field Strength Meter MkI
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Field strength meter for the 137 kHz band

Published:2013/2/25 20:21:00 Author:muriel | Keyword: Field strength meter, 137 kHz band

Field strength meter for the 137 kHz band
Field strength meter for the 137 kHz band

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Field Strength Meters

Published:2013/2/25 20:20:00 Author:muriel | Keyword: Field Strength Meters

Field Strength Meters
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Static Detector Negative Ion Detectors

Published:2013/2/24 21:11:00 Author:muriel | Keyword: Static Detector, Negative, Ion Detectors

Static Detector Negative Ion Detectors
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Low Droop Track-and-Hold/Peak Detector Circuit

Published:2013/2/24 20:26:00 Author:muriel | Keyword: Low Droop, Track-and-Hold/Peak , Detector Circuit

Low Droop Track-and-Hold/Peak Detector Circuit
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FET INPUT HIGH SPEED LIGHT DETECTOR

Published:2013/2/24 20:03:00 Author:muriel | Keyword: FET INPUT, HIGH SPEED, LIGHT DETECTOR

FET INPUT HIGH SPEED LIGHT DETECTOR
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Speed measuring circuit with integrated speed sensor KMI15/16

Published:2013/2/19 1:24:00 Author:Ecco | Keyword: Speed measuring , integrated speed sensor

Speed measuring circuit with integrated speed sensor KMI15/16
R2, R3 and C4 form the low pass filter with 1kHz upper limit frequency. Comparator LM393 is powered by UDD. After R4, R5 partial pressure, UDD obtains a reference voltage U1 which is added to the inverting input terminal of LM393, speed signal U2 is connected to the noninverting input.   (View)

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Simple analog phase detector circuit diagram

Published:2013/2/18 0:20:00 Author:Ecco | Keyword: Simple analog phase detector

Simple analog phase detector circuit diagram
It is composed of an operational amplifier TL072 and analog switch MAX4521, it is applicable to PLL circuit or lock-in amplifier. Supply voltage is ± 5V, the input and output signal level is below ± 4V, and the operating frequency is 10Hz ~~ 100kHz. The UiA and UiB are respectively input sine wave and square wave with the same frequency, square wave's duty cycle is 50 %, the output waveform of A1 is shown in Figure (b).   (View)

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Electronic Eavesdropping Devices Detector

Published:2013/2/17 20:25:00 Author:muriel | Keyword: Electronic Eavesdropping Devices, Detector

Electronic Eavesdropping Devices Detector
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