Alkeria NECTA Series Manuale utente

NECTA

series

USB3 line-scan camera

USER GUIDE

Save the planet: do not print this manual unless you really need to.

Release 2.4 - March, 2022

The information in this document is subject to change without notice. Information, drawings and illus-

trations contained herein are the property of Alkeria SRL. No part of this manual may be reproduced or

distributed by any means, electronic or mechanical, without the express written consent of Alkeria SRL.

WELCOME TO NECTA LINE-SCAN CAMERAS

Before starting using your camera, make sure you follow these basic rules and steps for a safe and effec-

tive use of NECTA .

• Make sure you are using a correct hardware (Section 1.1);

• Check safety and precautions chapter (Section 2.8);

• Access your User Area on www.alkeria.com and download camera manual and install MaestroUSB3

SDK (Section 1.2);

• Install your camera in your setup (Section 1.3).

Warning

Please do not connect I/O interface yet. Use the I/O connectors only after

completing the rst start of the camera and after reading Chapter 4 of this

manual.

• Connect and start the camera for the rst time (Section 1.4);

• Perform a camera calibration (Section 8.2).

Tip

Check the videos in your User Area about camera calibration.

IMPORTANT NOTES

• Make sure you check the information about NECTA Player and its functions in Chapter 9;

• Deeply check our manual and code samples: most of common operations and options available

are described there;

• Remember that you can always reach our support team through your User Area on www.alkeria.com

or emailing support@alkeria.com

Warning

NEVER try to power the camera through the I/O interface. Our cameras are

self powered through USB3.

Summary 3

Summary

1 Getting started 8

1.1 Requirements............................................ 8

1.2 Softwaredownload......................................... 9

1.3 Connections............................................. 12

1.4 FirstStart .............................................. 13

1.4.1 StatusLED ........................................ 13

1.4.2 RunAlkeriaplayer.................................... 13

1.4.3 Howtogetagoodimage................................ 15

2 Introducing NECTA Line Scan Cameras 16

2.1 NECTA................................................ 17

2.2 NECTAfamily............................................ 17

2.2.1 DetailedSpecications................................. 19

2.3 Optionalaccessories........................................ 25

2.4 OrderingInformations....................................... 25

2.5 USB 3.2 Gen 1x1 SuperSpeed interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.5.1 Isochronousendpoint.................................. 26

2.5.2 Bulkendpoint ...................................... 26

2.5.3 USB 3.2 Gen 1x1 controller cards . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.6 Installationrequirements..................................... 27

2.7 MaestroUSB3SDK......................................... 27

2.7.1 SoftwareLicense .................................... 28

2.8 SafetyandPrecautions ...................................... 28

3 Hardware Description 30

3.1 Sensors................................................ 30

3.1.1 Monochrome Quantum Efciency . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3.1.2 Color Quantum Efciency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3.2 Mechanicaldescription ...................................... 31

3.3 Sensorposition........................................... 33

3.4 Adaptersforstandardlens .................................... 33

3.4.1 Choosing the right adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.4.2 C-Mountadapter .................................... 34

3.4.2.1 Maximum lens protrusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Summary 4

3.4.3 F-Mountadapter .................................... 35

3.5 FlangeFocalDistance ....................................... 36

3.6 Handlingprecautions ....................................... 37

3.6.1 Temperature and humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

3.6.2 Warrantylimitations .................................. 38

3.6.3 Mechanicalstress.................................... 38

3.6.4 Heatdissipation ..................................... 38

3.6.5 Monitoring internal temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

3.6.6 Automatic internal temperature safety mechanism . . . . . . . . . . . . . . . . 39

3.6.7 EMI/ESD precautions: noise and electrostatic discharge . . . . . . . . . . . . . 40

3.7 CleaningNECTAcamera ..................................... 41

3.7.1 Beforestarting...................................... 41

3.7.2 Cleaning NECTA camera housing . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3.7.3 Opticalpathcleaning .................................. 41

3.7.4 Impurities......................................... 42

3.7.5 Sensorcleaning ..................................... 42

3.7.6 Usingcompressedair.................................. 42

3.7.7 After cleaning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4 Interfacing to the world 43

4.0.1 DetectingI/Opower .................................. 44

4.1 I/Ocable............................................... 45

4.2 PowerSelection........................................... 46

4.3 I/Omodule.............................................. 46

4.3.1 Inputmodulestructure................................. 46

4.3.1.1 Debouncingmodule................................ 47

4.3.1.2 Inputevents..................................... 48

4.3.1.3 RS-422........................................ 49

4.3.1.4 RS-644........................................ 50

4.3.1.5 LV-TTL / LV-CMOS / 12 V - 24 V . . . . . . . . . . . . . . . . . . . . . . . . . 50

4.3.2 Output module structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

4.3.2.1 RS-422........................................ 53

4.3.2.2 RS-644........................................ 53

4.3.2.3 LV-TTL/LV-CMOS................................. 54

4.3.2.4 5to24VOutput .................................. 55

4.3.3 Bidirectional module structure (port 0) . . . . . . . . . . . . . . . . . . . . . . . 55

4.3.4 I/Oswitchingtime.................................... 55

4.4 Usinginputsignals ......................................... 56

4.4.1 Encodermodule..................................... 56

4.4.1.1 Encoderhysteresis................................. 57

4.4.1.2 Directionreversal ................................. 57

4.4.1.3 Conguring the encoder module . . . . . . . . . . . . . . . . . . . . . . . . . 58

4.4.1.4 Reading and resetting encoder position . . . . . . . . . . . . . . . . . . . . 58

4.4.2 Frequency Multiplier (Phase Locked Loop (PLL)) . . . . . . . . . . . . . . . . . . 59

4.4.3 Triggermanager..................................... 60

Summary 5

4.5 Controllingoutputports...................................... 61

4.5.1 Polarity .......................................... 61

4.5.2 Opencollector...................................... 62

4.5.3 Softwareoutput..................................... 62

4.5.4 TriggerOutput...................................... 62

4.5.4.1 Exposure....................................... 62

4.5.4.2 Strobe ........................................ 63

4.5.4.3 Trigger........................................ 64

4.5.4.4 Triggerready .................................... 64

4.5.5 Customsources ..................................... 64

4.5.6 Input and output ports usage examples . . . . . . . . . . . . . . . . . . . . . . . 65

4.6 SerialInterfaceModule ...................................... 65

5 System Setup 67

5.1 USBSetup.............................................. 67

5.1.1 How to choose a suitable USB cable . . . . . . . . . . . . . . . . . . . . . . . . . 67

5.1.2 Recommended USB interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

5.2 StatusLED.............................................. 69

5.3 When one NECTA is not enough... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

6 Trigger 70

6.1 Triggersources ........................................... 70

6.2 Acquisitionstarttrigger...................................... 71

6.3 Framestarttrigger......................................... 71

6.4 Linestarttrigger .......................................... 71

6.5 End-of-exposuretrigger...................................... 72

6.6 Triggerdelay............................................. 72

6.6.1 Encoderdelay ...................................... 73

6.6.2 Triggeroverrun ..................................... 73

6.7 Trigger conguration example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

6.7.1 External trigger frame acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . 74

6.7.2 Signal-driven exposure time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

6.7.3 Encoder synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

7 The processing chain 77

7.1 LightMeter ............................................. 77

7.2 ChunkData ............................................. 78

7.2.1 Line Number (line related) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

7.2.2 FrameNumber...................................... 80

7.2.3 Timestamp........................................ 80

7.2.4 Encoderposition..................................... 80

7.2.5 InputStatus........................................ 81

7.2.6 Congurationexample ................................. 81

7.3 Flush ................................................. 82

7.3.1 FlushUsageExamples ................................. 82

8 Capturing Images 83

Summary 6

8.1 Videomodes............................................. 83

8.1.1 Mode0(Normal)..................................... 83

8.1.2 Mode1(RAW)...................................... 83

8.1.3 Mode 2 (Subsampling – Color models only) . . . . . . . . . . . . . . . . . . . . . 84

8.1.3.1 Sum.......................................... 84

8.1.3.2 Average ....................................... 84

8.2 Calibration.............................................. 85

8.2.1 BlackLevelOffset.................................... 86

8.2.2 Dark Signal Non-Uniformity (DSNU) and Photo Response Non-Uniformity (PRNU) 86

8.2.3 Restoring NECTA calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

8.3 RegionOfInterest ......................................... 88

8.4 Binning (monochrome models only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

8.4.1 Sum-typebinning .................................... 90

8.4.2 Average-typebinning.................................. 91

8.5 PixelFormat............................................. 93

8.6 ADCresolution........................................... 94

8.7 Lineperiod.............................................. 95

8.7.1 High resolution Line period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

8.8 Linedelay .............................................. 96

8.8.1 Colorcameras ...................................... 97

8.8.2 Monochromecameras ................................. 98

8.9 Framerateandbandwidth .................................... 99

8.9.1 Reserving bandwidth for isochronous channel . . . . . . . . . . . . . . . . . . . 99

8.9.2 Bandwidth limits for isochronous endpoint . . . . . . . . . . . . . . . . . . . . . 99

8.9.3 Bandwidth limit for bulk endpoint . . . . . . . . . . . . . . . . . . . . . . . . . . 100

8.9.4 Packet size for isochronous endpoint . . . . . . . . . . . . . . . . . . . . . . . . . 101

8.9.4.1 Calculating the required bandwidth . . . . . . . . . . . . . . . . . . . . . . . 102

8.9.5 Packet size for bulk endpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

8.9.6 Connecting multiple devices to the same host . . . . . . . . . . . . . . . . . . . 103

8.9.7 Preserverates ...................................... 103

8.9.8 Maximizingframerate ................................. 104

8.10Controls ............................................... 104

8.10.1 Brightness ........................................ 105

8.10.2 Contrast.......................................... 105

8.10.3 Color correction matrix (color models only) . . . . . . . . . . . . . . . . . . . . . 106

8.10.4 Hue (color models only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

8.10.5 Saturation (color models only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

8.10.6 White Balance (color models only) . . . . . . . . . . . . . . . . . . . . . . . . . . 109

8.10.7 Gamma .......................................... 109

8.10.8 Shutter .......................................... 111

8.10.9 High resolution line period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

8.10.10AnalogGain........................................ 112

8.10.11CDSGain ......................................... 113

8.10.12DigitalGain........................................ 113

8.10.13 User Look-Up Table (LUT)s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Summary 7

8.10.14Luma............................................ 115

8.10.15TimeStamp........................................ 115

8.10.16FlipandRotate...................................... 116

8.11Savingdeviceconguration.................................... 116

8.11.1 ExportandimportXML................................. 117

8.11.2 User conguration (deprecated) . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

8.11.3 Calibration ........................................ 117

8.12CongurationExample ...................................... 118

8.13PatternGenerator ......................................... 118

9 Alkeria player 120

9.1 Device Connection and Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

9.2 Toolbarbuttons........................................... 121

9.3 SettingsPanel............................................ 121

9.3.1 Features.......................................... 121

9.3.2 VideoSettings ...................................... 122

9.3.3 Trigger........................................... 123

9.3.4 Advancedfeatures ................................... 124

9.4 SaveSequencePanel........................................ 125

9.5 DisplayFramesPanel ....................................... 126

9.6 CameraMenu............................................ 126

9.6.1 Saving and Exporting Conguration . . . . . . . . . . . . . . . . . . . . . . . . . 127

9.6.2 I/Opanel ......................................... 127

9.6.3 Calibration ........................................ 127

9.6.4 LUTEditor ........................................ 128

10 Warranty 130

10.1RMA ................................................. 130

11 Firmware Update 131

12 EMC certication and compliance 132

12.1CEconformity............................................ 132

12.2 FCC conformity - Class A (USA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

12.3ICES-003(Canada)......................................... 133

12.4Limitationofliability........................................ 133

12.5RoHSConformity.......................................... 133

12.6InformationforUsers ....................................... 134

List of Acronyms 135

Example Code 136

1. Getting started 8

Getting started

1.1 REQUIREMENTS

For getting started with NECTA you will need the material listed below:

• A NECTA camera equipped with a lens adapter (Figure 1.1);

• A lens compatible with the chosen lens adapter;

• An USB 3.2 Gen 1x1 cable (Figure 1.2);

• A computer with an USB 3.2 Gen 1x1 controller;

Figure 1.1: NECTA camera

1. Getting started 9

(a) (b)

Figure 1.2: Required USB cable is type-A on the PC side (a) and micro-B on the camera side (b).

1.2 SOFTWARE DOWNLOAD

After camera purchasing, our Sales Department will provide you with access to our website’s User Area.

In there you can nd everything you need to set and use the camera: manuals, guides, tutorials, software

and rmware updates. Users Area accounts are personal, and can only be created by Alkeria’s Sales

Dept.

Once your account has been activated, you will receive an email to reset your account password: click

on the link to set your password. Please store your login credentials in a secure place.

To download the software, follow these steps:

Step 1: Go to our website www.alkeria.com (Figure 1.3)

Figure 1.3: Alkeria website

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