1142 User Guide - Revision history

Mparadis at 20:38, 8 May 2018

2018-05-08T20:38:40Z

← Older revision		Revision as of 20:38, 8 May 2018
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			__NOINDEX__
	<metadesc>The Phidget Light Sensor measures light intensities of up to 1000 lux and connects to an Analog Input or VINT Hub port.</metadesc>		<metadesc>The Phidget Light Sensor measures light intensities of up to 1000 lux and connects to an Analog Input or VINT Hub port.</metadesc>
	[[Category:UserGuide]]		[[Category:UserGuide]]

Jdecoux at 19:19, 11 April 2018

2018-04-11T19:19:15Z

← Older revision		Revision as of 19:19, 11 April 2018
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	Next, you will need to connect the pieces:		Next, you will need to connect the pieces:
	[[Image:1142_0_Connecting_The_Hardware.jpg\|400px\|right\|link=]]		[[Image:1142_0_Connecting_The_Hardware.jpg\|400px\|right\|link=]]
	# Connect the 1142 to the ~~1018~~ with the Phidget cable.		# Connect the 1142 to the HUB0000 with the Phidget cable.
	# Connect the ~~1018~~ to your computer with the USB cable.		# Connect the HUB0000 to your computer with the USB cable.

	<br clear="all">		<br clear="all">
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	==Using the 1142==		==Using the 1142==
	{{UGcontrolpanelSensor\|1142\|~~1018~~}}		{{UGcontrolpanelSensor\|1142\|HUB0000}}

	{{UGSensorVoltageInput\|1142\|illuminance (lux)}}		{{UGSensorVoltageInput\|1142\|illuminance (lux)}}

Mparadis at 16:33, 29 November 2017

2017-11-29T16:33:33Z

← Older revision		Revision as of 16:33, 29 November 2017
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			<metadesc>The Phidget Light Sensor measures light intensities of up to 1000 lux and connects to an Analog Input or VINT Hub port.</metadesc>
	[[Category:UserGuide]]		[[Category:UserGuide]]
	==Getting Started==		==Getting Started==

Lmpacent at 22:53, 16 June 2017

2017-06-16T22:53:21Z

← Older revision		Revision as of 22:53, 16 June 2017
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	[[Category:UserGuide]]		[[Category:UserGuide]]
			==Getting Started==
			{{UgSensorIntro\|1142\|Light Sensor 1000 lux\|Voltage Input port}}

	~~===Required Hardware===~~

	* A [{{SERVER}}/products.php?product_id=1142 1142 Light Sensor]		Next, you will need to connect the pieces:
	* An InterfaceKit or Hub to ~~read~~ the ~~sensor~~
	* A Phidget cable
	* A USB cable
	* A computer

	~~===Connecting the Pieces===~~
	[[Image:1142_0_Connecting_The_Hardware.jpg\|400px\|right\|link=]]		[[Image:1142_0_Connecting_The_Hardware.jpg\|400px\|right\|link=]]
	# Connect the ~~light sensor~~ to the ~~InterfaceKit or Hub~~ with the Phidget cable.		# Connect the 1142 to the 1018 with the Phidget cable.
	# Connect the ~~InterfaceKit or Hub~~ to your computer with the USB cable.		# Connect the 1018 to your computer with the USB cable.

	<br clear="all">		<br clear="all">
	~~==Testing Using Windows==~~		{{UGIntroDone\|1142}}

	{{~~UgSensor~~}}		==Using the 1142==
			{{UGcontrolpanelSensor\|1142\|1018}}

			{{UGSensorVoltageInput\|1142\|illuminance (lux)}}

	==Technical Details==		==Technical Details==
	The human eye is less sensitive to changes in light intensity than the 1142, but is able to see a wider range. The Human eye range is from 50 ~~µlux~~ (starlight) to 100 klx (extremely bright sunny day). The 1142, on the other hand, is able to measure from 1 ~~lux~~ (Moonlight) to 1000 ~~lux~~ (TV studio lighting). If you notice noise on the signal that you cannot perceive yourself, it could be due to incandescent light flicker, or other varying light sources.		===General===
			The human eye is less sensitive to changes in light intensity than the 1142, but is able to see a wider range. The Human eye range is from 50 µlx (starlight) to 100 klx (extremely bright sunny day). The 1142, on the other hand, is able to measure from 1 lx (Moonlight) to 1000 lx (TV studio lighting). If you notice noise on the signal that you cannot perceive yourself, it could be due to incandescent light flicker, or other varying light sources.

	The 1142 is ~~Non~~-~~Ratiometric~~ which means that you cannot rely on the sensor saturating at 5 volts. To be conservative, interpret a sensor voltage greater than 4.75V as saturated, with the true light level being unknown.		The 1142 is non-ratiometric which means that you cannot rely on the sensor saturating at 5 volts. To be conservative, interpret a sensor voltage greater than 4.75V as saturated, with the true light level being unknown.

	===Sensitivity Response===		===Sensitivity Response===
			The 1142 uses the APDS-9002 light sensor package. The following graph illustrates the sensor's sensitivity to specific wavelengths of light:

	~~The 1142 uses the APDS-9002 light sensor package. The following graph illustrates the sensor's sensitivity to specific wavelengths of light.~~		[[File:APDS9002.jpg\|link=\|center\|600px]]

	[[File:APDS9002.jpg\|link=\|~~400px~~]]


	===Formulas===		===Formulas===
	The formula to translate voltage into ~~luminosity~~ is:		{{UGSensorFormula\|illuminance (lux)}} The formula to translate voltage into illuminance is:


	:<math>		:<math>
	\text{~~Luminosity~~ (lux)} = m \times (\text{Voltage} \times 200) + b \!		\text{Illuminance (lux)} = m \times (\text{Voltage} \times 200) + b \!
	</math>		</math>

Mparadis at 16:27, 6 June 2017

2017-06-06T16:27:33Z

← Older revision		Revision as of 16:27, 6 June 2017
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	===Required Hardware===		===Required Hardware===

	* A 1142 Light Sensor		* A [{{SERVER}}/products.php?product_id=1142 1142 Light Sensor]
	* An InterfaceKit or Hub to read the sensor		* An InterfaceKit or Hub to read the sensor
	* A Phidget cable		* A Phidget cable

Mparadis: /* Technical Details */

2017-04-18T16:47:17Z

Technical Details

← Older revision		Revision as of 16:47, 18 April 2017
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	The human eye is less sensitive to changes in light intensity than the 1142, but is able to see a wider range. The Human eye range is from 50 µlux (starlight) to 100 klx (extremely bright sunny day). The 1142, on the other hand, is able to measure from 1 lux (Moonlight) to 1000 lux (TV studio lighting). If you notice noise on the signal that you cannot perceive yourself, it could be due to incandescent light flicker, or other varying light sources.		The human eye is less sensitive to changes in light intensity than the 1142, but is able to see a wider range. The Human eye range is from 50 µlux (starlight) to 100 klx (extremely bright sunny day). The 1142, on the other hand, is able to measure from 1 lux (Moonlight) to 1000 lux (TV studio lighting). If you notice noise on the signal that you cannot perceive yourself, it could be due to incandescent light flicker, or other varying light sources.

	The 1142 is Non-Ratiometric which means that you cannot rely on the sensor saturating at ~~1000 SensorValue~~. To be conservative, interpret ~~SensorValue over 950~~ as saturated, with the true light level being unknown.		The 1142 is Non-Ratiometric which means that you cannot rely on the sensor saturating at 5 volts. To be conservative, interpret a sensor voltage greater than 4.75V as saturated, with the true light level being unknown.

	===Sensitivity Response===		===Sensitivity Response===
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	===Formulas===		===Formulas===
	The formula to translate ~~SensorValue~~ into luminosity is:		The formula to translate voltage into luminosity is:


	:<math>		:<math>
	\text{Luminosity (lux)} = m * \text{~~SensorValue~~} + b \!		\text{Luminosity (lux)} = m \times (\text{Voltage} \times 200) + b \!
	</math>		</math>

Mparadis: /* Technical Details */

2016-11-14T15:54:08Z

Technical Details

← Older revision		Revision as of 15:54, 14 November 2016
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	Where 'm' and 'b' are calibration values found on the label on the underside of the 1142. If for some reason you can't use the calibration values that come with the sensor, you can use the generalized values of ''' m = 1.478777''' and '''b = 33.67076''' to get a rough approximation.		Where 'm' and 'b' are calibration values found on the label on the underside of the 1142. If for some reason you can't use the calibration values that come with the sensor, you can use the generalized values of ''' m = 1.478777''' and '''b = 33.67076''' to get a rough approximation.

	~~{{UGotherint}}~~

	{{UGasens}}		{{UGasens}}

	{{UGnext\|}}		{{UGnext\|}}

Mparadis at 11:07, 19 October 2016

2016-10-19T11:07:02Z

← Older revision		Revision as of 11:07, 19 October 2016
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	* A 1142 Light Sensor		* A 1142 Light Sensor
	* An InterfaceKit or Hub to read the sensor		* An InterfaceKit or Hub to read the sensor
	* A ~~sensor~~ cable		* A Phidget cable
	* A USB cable		* A USB cable
	* A computer		* A computer
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	===Connecting the Pieces===		===Connecting the Pieces===
	[[Image:1142_0_Connecting_The_Hardware.jpg\|400px\|right\|link=]]		[[Image:1142_0_Connecting_The_Hardware.jpg\|400px\|right\|link=]]
	# Connect the light sensor to the InterfaceKit or Hub with the ~~sensor~~ cable.		# Connect the light sensor to the InterfaceKit or Hub with the Phidget cable.
	# Connect the InterfaceKit or Hub to your computer with the USB cable.		# Connect the InterfaceKit or Hub to your computer with the USB cable.

Mparadis: /* Product History */

2016-09-16T15:55:04Z

Product History

← Older revision		Revision as of 15:55, 16 September 2016
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	{{UGnext\|}}		{{UGnext\|}}

	~~==Product History==~~
	~~{{UGhist}}~~
	~~{{UGrow\|Oct 2012\|0 \|N/A \|Product Release }}~~

Mparadis at 20:41, 30 August 2016

2016-08-30T20:41:16Z

← Older revision		Revision as of 20:41, 30 August 2016
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	===Connecting the Pieces===		===Connecting the Pieces===
	[[Image:~~1142_Functional~~.~~jpeg~~\|~~300px~~\|right\|link=]]		[[Image:1142_0_Connecting_The_Hardware.jpg\|400px\|right\|link=]]
	# Connect the light sensor to the InterfaceKit or Hub with the sensor cable.		# Connect the light sensor to the InterfaceKit or Hub with the sensor cable.
	# Connect the InterfaceKit or Hub to your computer with the USB cable.		# Connect the InterfaceKit or Hub to your computer with the USB cable.