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LabQuest

®

 3 User Manual 

 

 

www.vernier.com/labq3 

33

 

Statistics 

The Statistics tool displays descriptive statistics for selected data. If a region of the graph is 
selected, only that region is used for fitting. If there is no selection, the entire graph is used. 

From the Graph screen, choose Statistics from the 
Analyze menu. Enable the tool by tapping on the 
displayed sensor or column name. 

The results are displayed in a panel to the right of the 
graph. If a region is selected, brackets are drawn to 
indicate the region used for calculations. 

 

Curve Fit 

The Curve Fit tool fits a chosen function to your data. If a region of the graph is selected, only 
that region is used for fitting. If there is no selection, the entire graph is used. 

From the Graph screen, choose Curve Fit from the 
Analyze menu. Enable the tool by tapping on the 
displayed sensor or column name. 

A linear fit is displayed by default. To select a 
different curve fit, tap the fit equation and choose the 
desired equation. 

 

LabQuest displays the fit in the preview graph at the 
left. The fit coefficients and root mean square error 
(RMSE) are displayed. For linear fits, the correlation 
coefficient is also displayed. 

Tap OK to keep this fit and display the curve on the 
Graph screen. To exit the Curve Fit tool without 
applying the curve fit, tap Cancel.

 

 

TIP! 

The RMSE is a measure of how well the fit matches the data. The smaller the RMSE, the 

closer the data points are to the fitted line. The RMSE has the same units as the y-axis data. 

 

 

Содержание LabQuest 3

Страница 1: ...LabQuest 3 User Manual Version 3 0 2 November 2020...

Страница 2: ...0 comes with a Quick Start Guide to get you started with basic data collection and analysis The LabQuest 3 User Manual is an extended guide detailing the hardware and software features of LabQuest 3 T...

Страница 3: ...try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment in...

Страница 4: ...junction with any other antenna or transmitter L metteur r cepteur exempt de licence contenu dans le pr sent appareil est conforme aux CNR d Innovation Sciences et D veloppement conomique Canada appli...

Страница 5: ...V QUICK START TO DATA COLLECTION AND ANALYSIS 10 V USING THE LABQUEST APP 13 Preparing for Data Collection 13 Modifying the Data Collection Settings 14 Configuring Sensors 19 Setting up Graphs 22 Draw...

Страница 6: ...dic Table 53 Power Amplifier 54 Sound Recorder 54 Stopwatch 54 XII CUSTOMIZING THE SETTINGS 55 Connections Wi Fi Data Sharing and Email 55 Advanced Preferences 55 Audio 56 Language 56 Light Power 56 T...

Страница 7: ...LabQuest 3 User Manual www vernier com labq3 1 I GETTING STARTED What s Included LabQuest 3 unit Rechargeable battery in unit AC power adapter Micro USB computer connection cable Quick Start Guide...

Страница 8: ...n the battery by regular full discharge charge cycles and it is safe to leave the battery charging indefinitely For more details about the battery see Battery Maintenance in the appendix Powering on L...

Страница 9: ...e system corruption Only do this if you have no other way to power off the unit Reading the Notification Bar The left side of the Notification bar shows the apps that are currently running in the orde...

Страница 10: ...s Long press Use the long press to activate special functionality on some objects such as holding down the keyboard shift key to enable shift lock or beginning a table selection Two finger pinch zoom...

Страница 11: ...cons appear relates to the order in which the apps are launched Navigating the LabQuest App Screens The LabQuest App Meter Graph Table and Notes screens are accessed by tapping the associated tab icon...

Страница 12: ...ollection early or wait until the collection completes In event based data collection modes e g Events with Entry a Keep button appears to the right of the Stop button In this mode you must tap to rec...

Страница 13: ...o Direct sensor that includes multiple sensor channels you may need to modify the Sensor Channel configuration to use some of the built in sensors See Go Direct Sensor Channel Configuration Manual Sen...

Страница 14: ...sensors and tap OK 3 Some Go Direct sensors have multiple sensor channels These sensors have default configurations that do not typically use all available sensor channels Tap the sensor meter and sel...

Страница 15: ...matically sets the default data collection rate for the sensor GPS The internal Global Positioning Sensor GPS collects latitude longitude and altitude readings and can be used with other sensors You c...

Страница 16: ...to ID the sensor display a meter and automatically set the default collection rate for that sensor 3 Tap Collect LabQuest App switches to the Graph Screen and data collection begins Collected data are...

Страница 17: ...aph To remove the displayed statistics tap Analyze on the Graph screen choose Statistics and then tap the checked box to clear the selection Curve Fit To fit a curve to the selected data choose Curve...

Страница 18: ...hout overwriting your previous collection tap Store Run before starting data collection When you have multiple runs tap to select the run you want to show on the graph You can also choose to display a...

Страница 19: ...settings Additionally you can access tools to modify and customize these settings for your particular experiment Starting a New File Choose New from the File menu to reset all data collection paramete...

Страница 20: ...atograph Drop Counting and Data Matrix Mode Time Based Time based data collection is the default data collection mode for most sensors In this mode sensor readings are recorded at regular time interva...

Страница 21: ...ondition is met Advanced The Advanced field has three options that can be independently enabled by selecting the associated check box Oversampling can be used with data collection rates less than ten...

Страница 22: ...Sometimes experiments depend on a quantity other than time For example a Boyle s law experiment investigates pressure as a function of the volume of gas in a closed container TIP In Events with Entry...

Страница 23: ...Direct Photogate is set up to use Gate State channels only LabQuest App defaults to Photogate Timing mode You have two options for ending data collection in this mode with the Stop button or after a...

Страница 24: ...to the right After setting the parameters tap OK to initiate the warm up Mode Drop Counting LabQuest App defaults to this mode when a Vernier Drop Counter or Go Direct Drop Counter are connected When...

Страница 25: ...any other digital sensor in that port To turn off the digital output and enable auto ID of sensors choose New from the File menu Configuring Sensors A digital meter for each connected sensor is shown...

Страница 26: ...The default values are the same as those used with the default graph setup Show digital reading When selected this option displays the digital sensor reading on the analog meter TIP Vernier energy se...

Страница 27: ...existing and subsequent data for that sensor Not all sensors can change units Calibrating the Sensor Most sensors use a custom calibration stored on the sensor However some sensors do require calibrat...

Страница 28: ...t sensors typically only show one graph some sensors such as the motion detector show two graphs by default When using multiple sensors sensors with different units are plotted on separate axes whenev...

Страница 29: ...mark e g a circle or triangle Connect Points Connect contiguous data points data table order with straight line segments The order the points are connected is determined by their order in the data ta...

Страница 30: ...data collection is not recommended unless your Autoscale option is set to Manual This is because a new data point could force the graph to rescale to show that point Double tap the graph to rescale th...

Страница 31: ...e Drawing Predictions The LabQuest App has a free hand sketch tool for drawing on the Graph screen This can be used for a variety of purposes It is most often used to sketch a prediction of how a grap...

Страница 32: ...collection the collected data plot over the target data You can collect data over the target graph an unlimited amount of times TIP When using Motion Match automatic graph scaling is disabled The gra...

Страница 33: ...se LabQuest App to graph and analyze manually entered data When no sensors are connected the table and graph default to display two manual data columns X and Y You can manually enter data from the Tab...

Страница 34: ...d in this way From the Table menu you have access to edit tools Cut Copy and Paste Use these tools to copy data from one column to another TIP You can copy values to and from the table and other appli...

Страница 35: ...deleted from the LabQuest App file Delete Data Columns Choose Delete Data Column from the Table menu and choose the column you want to delete Note that you cannot delete data collected from a sensor h...

Страница 36: ...y axis values and the coordinates are displayed to the right of the graph You can make fine adjustments to the cursor location by using the Left and Right examine buttons Tangent The Tangent mode enha...

Страница 37: ...nually entered data If more than one run is plotted on the graph only the point from the most recent run is tagged Excluding Data from Analysis Strike Through Data While you cannot delete data collect...

Страница 38: ...the horizontal side of the box yields x To redo the selection touch and drag again Tap OK to keep these values and display the box on the graph To exit the Delta tool without displaying the box on th...

Страница 39: ...y that region is used for fitting If there is no selection the entire graph is used From the Graph screen choose Curve Fit from the Analyze menu Enable the tool by tapping on the displayed sensor or c...

Страница 40: ...ion on the Graph screen To exit the Model tool without applying the function tap Cancel TIP If no function appears on the graph when modeling your parameters are likely defining a curve that is outsid...

Страница 41: ...nable the tool by tapping on the displayed sensor or column name Adjust the graph display by touching and dragging across the graph to select a region and then tap Zoom alternatively you can use the t...

Страница 42: ...double tapping the compound cell in the table below the graph Repeat as needed to capture the data for all of your peaks If you need to look at data for a peak you have already added tap that region t...

Страница 43: ...n view the daily data as the location changes or pivot the data and view the location data as the day changes From the Graph screen choose Advanced from the Analyze menu and select Pivot Data to activ...

Страница 44: ...have a qmbl extension and can be saved to the internal storage space on LabQuest or to a USB flash drive LabQuest App files can also be opened and manipulated on a computer using Logger Pro 3 softwar...

Страница 45: ...icon USB LabQuest to select a destination Tap in the File name field to assign a name to the file When a USB flash drive is connected the dialog defaults to showing you files from your flash drive Yo...

Страница 46: ...th the connected devices The data can be streamed live during data collection or transferred in full after data collection is complete Each recipient of the data can perform an individual analysis of...

Страница 47: ...2836 3 Verify LabQuest has successfully connected to the network The network status should change to a numeric IP address When LabQuest has successfully connected to the network tap OK to return to t...

Страница 48: ...d change to a numeric IP address and a message noting that LabQuest is hosting a network is shown on the screen Tap OK to return to the Connections app TIP Some Android implementations have trouble vi...

Страница 49: ...lpha and numeric characters are allowed You cannot use spaces or punctuation marks in the LabQuest name Tap Done to save the name 3 Tap the Data Sharing icon to open Data Sharing Settings 4 Verify Dat...

Страница 50: ...nalysis app has the Graphical Analysis Pro features unlocked click or tap Local from the Data Sharing connection dialog to see LabQuest data sharing sources 4 Tap the name of the LabQuest 3 source to...

Страница 51: ...the Settings screen and tap the Network tab 2 Tap Edit Preference and select the desired setting Changes to the Connections main screen do not show if the lockdown mode is changed while the Connection...

Страница 52: ...ok The software detects LabQuest and the attached sensor s displaying a graph ready for data collection LabQuest displays a screen with two arrows indicating it is controlled by another device 4 Click...

Страница 53: ...ile or set up a new file with the applicable data collection settings Choose LabQuest Browser from the Logger Pro 3 File menu then choose Save As and enter a descriptive filename Any data as well as t...

Страница 54: ...dialog box you may need to update the Connections app lockdown settings See Restricting Access to the Connections Setup for more information 4 Enter the email address you want to use with LabQuest Fo...

Страница 55: ...om the File menu and then choose the item that you want to print Graph Table My Notes or Screen TIP Options for printing Table and My Notes are not available when those items have no data to print Use...

Страница 56: ...r or iPad Connect to a projector or interactive white board for class demos or student sharing Monitor student progress on any LabQuest connected to your network Create screenshots of the LabQuest scr...

Страница 57: ...kbox to Allow Screen Control so you can control the LabQuest unit from your computer or iPad 6 Tap OK to exit the LabQuest Viewer settings If Wi Fi is not available you can Enable Viewer over USB to c...

Страница 58: ...t channels is on by default so that both channels start and stop together Tap the link icon to control the channels independently Use the sliders to adjust the frequency A common use of the Audio Func...

Страница 59: ...drive These files can be saved directly to your LabQuest unit as needed In addition to experiment files documentation for the internal sensors and a copy of this user manual are available within this...

Страница 60: ...amplitude and frequency using the controls The frequency can be changed by factors of two using the 2 and 2 buttons Sound Recorder You can use the Sound Recorder app to record and replay short audio...

Страница 61: ...nd set up other network enabled features such as Data Sharing and emailing files Tap the icon to modify the settings Connect to a Wi Fi Network Give your LabQuest a Unique Name Setup Data Sharing Conf...

Страница 62: ...r com til 1808 Light Power Adjust the screen brightness and select different power profiles that can help extend your battery life between charges When using AC power you can select to have the screen...

Страница 63: ...ing New from the File menu Angle Units for Trigonometric Calculations Calculated columns curve fits and modeled functions may use trigonometric calculations choose Degrees or Radians The default unit...

Страница 64: ...or 100 000 samples s 0 02 seconds maximum duration Multiple sensors 10 000 samples s 0 21 seconds maximum duration Minimum sampling rate 0 00125 samples s 800 s sample Maximum samples standalone Singl...

Страница 65: ...e minimum acceptable level and power off suspend the unit whenever the unit is not in use When using LabQuest as a standalone device the screen dims after a few minutes of no use even during data coll...

Страница 66: ...n first 7 Carefully set the battery in place so as not to damage the battery contacts or plastic tabs that hold the battery against the contacts 8 Set the battery door in over the battery just below i...

Страница 67: ...ever Shut down after 2 days never after 2 days never If you are setting up LabQuest for display you may not want the unit to dim at all To do that connect your unit to AC power and choose the option t...

Страница 68: ...and not in a folder Connect the flash drive to your LabQuest The Update app launches automatically when the update file is detected Tap to update your LabQuest Before applying the update your battery...

Страница 69: ...you can check for and apply updates over the internet From the settings screen tap Update to initiate a check for updates If a newer version of the software is available tap to download and install t...

Страница 70: ...source code for the open source software is available on request Contact us at info vernier com or by writing to Source Code Request Vernier Software Technology 13979 SW Millikan Way Beaverton OR 9700...

Страница 71: ...office or your disposal service Battery recycling information is available at www call2recycle org Do not puncture or expose the battery to excessive heat or flame The symbol shown here indicates tha...

Страница 72: ...s prevent accidental drops during field studies www vernier com lq3 lan LabQuest Micro to USB C Computer Cable LabQuest to computer USB C cable The cable has a USB micro plug and USB C plug This cable...

Страница 73: ...om Version 3 0 2 Published November 2020 Logger Pro LabQuest LabQuest Viewer Go Wireless Go Direct Vernier Graphical Analysis Vernier Graphical Analysis Pro and other marks shown are our trademarks or...

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