1120 User Guide - Revision history

Mparadis at 14:29, 9 May 2018

2018-05-09T14:29:28Z

← Older revision		Revision as of 14:29, 9 May 2018
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			__NOINDEX__
	[[Category:UserGuide]]		[[Category:UserGuide]]
	{{UserguideTOC\|1120.jpg\|1120}}		{{UserguideTOC\|1120.jpg\|1120}}

Mparadis: /* Formulas */

2012-09-07T16:24:10Z

Formulas

← Older revision		Revision as of 16:24, 7 September 2012
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	==Technical Details==		==Technical Details==
	===Formulas===		===Formulas===
	The FlexiForce Force sensor is a piezoresistor that has a very large resistance when it is not loaded (in the range of MegaOhms). The resistance decreases as more and more force is applied to it. Tekscan offers sensors with standard force ranges, such as 0-1 lb, 0-25 lbs, and 0-100 lbs. The same adapter board can be used for all three ranges. Because the expected part-to-part variance between FlexiForce sensors is as high as 40% it is imperative that you calibrate your sensor and determine the specific formula which applies to ''your'' sensor ~~if you want accurate results~~. For information on how to calibrate your sensor, refer to the [http://www.phidgets.com/documentation/Phidgets/3100_0_FlexiforceUserManual.pdf FlexiForce User Manual] from Tekscan.		The FlexiForce Force sensor is a piezoresistor that has a very large resistance when it is not loaded (in the range of MegaOhms). The resistance decreases as more and more force is applied to it. Tekscan offers sensors with standard force ranges, such as 0-1 lb, 0-25 lbs, and 0-100 lbs. The same adapter board can be used for all three ranges. Because the expected part-to-part variance between FlexiForce sensors is as high as 40%, it is imperative that you calibrate your sensor and determine the specific formula which applies to ''your'' sensor. For information on how to calibrate your sensor, refer to the [http://www.phidgets.com/documentation/Phidgets/3100_0_FlexiforceUserManual.pdf FlexiForce User Manual] from Tekscan.

	===FlexiForce Sensors===		===FlexiForce Sensors===

Mparadis: /* Technical Details */

2012-08-21T15:19:02Z

Technical Details

← Older revision		Revision as of 15:19, 21 August 2012
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	{{UGasens}}		{{UGasens}}

			==API==
			{{SensorAPI}}

	==Product History==		==Product History==
	{{UGhist}}		{{UGhist}}
	{{UGrow\|February 2010 \|0 \|N/A \|Product Release }}		{{UGrow\|February 2010 \|0 \|N/A \|Product Release }}

Burley: /* FlexiForce Sensors */

2012-08-14T19:16:49Z

FlexiForce Sensors

← Older revision		Revision as of 19:16, 14 August 2012
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	===FlexiForce Sensors===		===FlexiForce Sensors===
	The FlexiForce sensors are easy to interface to the adapter board. They can be plugged into the Interface cable that is included. The other end of the cable has been stripped and tinned so that they can be easily inserted into the terminal block. This is useful if a longer cable is needed, as wires can be soldered to the stripped ends. The polarity of the FlexiForce sensors does not matter.		The FlexiForce sensors are easy to interface to the adapter board. They can be plugged into the Interface cable that is included. The other end of the cable has been stripped and tinned so that they can be easily inserted into the terminal block. This is useful if a longer cable is needed, as wires can be soldered to the stripped ends. The polarity of the FlexiForce sensors does not matter.
	If a larger force range is desired, a resistor on the Adapter board can be replaced. This resistor is designated as RGAIN on the board and has a default value of 15 kiloOhms. When the RGAIN resistor value is reduced, the sensor becomes less sensitive and more force can be applied before saturating the output. Conversely, if the RGAIN value is increased, the sensitivity increases and the output saturates at a lower applied force. If RGAIN is changed, calibration with known forces will have to be done to determine the proper formula. Based on limited testing, RGAIN=5 kilo-ohms will give enough range to measure up to 1000 lbs with the 100 lb. Flexiforce sensor. Changing the gain by much larger amounts can cause sensor instability and is not recommended.		If a larger force range is desired, a resistor on the Adapter board can be replaced. This resistor is designated as RGAIN on the board and has a default value of 15 kiloOhms. When the RGAIN resistor value is reduced, the sensor becomes less sensitive and more force can be applied before saturating the output. Conversely, if the RGAIN value is increased, the sensitivity increases and the output saturates at a lower applied force. If RGAIN is changed, calibration with known forces will have to be done to determine the proper formula. Based on limited testing, RGAIN=5 kilo-ohms will give enough range to measure up to 1000 lbs with the 100 lb. Flexiforce sensor. Changing the gain by much larger amounts can cause sensor instability and is not recommended. Also note that adjusting the gain is not a substitute for calibrating and conditioning the sensor. You should look at the manual for the sensor you are using and follow all calibration procedures contained therein before resorting to adjusting the gain value to achieve accurate results.

	===Measurement Accuracy===		===Measurement Accuracy===

Burley at 15:34, 10 August 2012

2012-08-10T15:34:11Z

← Older revision		Revision as of 15:34, 10 August 2012
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	[[Category:UserGuide]]		[[Category:UserGuide]]
			{{UserguideTOC\|1120.jpg\|1120}}
	==Getting Started==		==Getting Started==

Mparadis: /* FlexiForce Sensors */

2012-08-08T21:01:13Z

FlexiForce Sensors

← Older revision		Revision as of 21:01, 8 August 2012
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	===FlexiForce Sensors===		===FlexiForce Sensors===
	The FlexiForce sensors are easy to interface to the adapter board. They can be plugged into the Interface cable that is included. The other end of the cable has been stripped and tinned so that they can be easily inserted into the terminal block. This is useful if a longer cable is needed, as wires can be soldered to the stripped ends. The polarity of the FlexiForce sensors does not matter.		The FlexiForce sensors are easy to interface to the adapter board. They can be plugged into the Interface cable that is included. The other end of the cable has been stripped and tinned so that they can be easily inserted into the terminal block. This is useful if a longer cable is needed, as wires can be soldered to the stripped ends. The polarity of the FlexiForce sensors does not matter.
	If a larger force range is desired, a resistor on the Adapter board can be replaced. This resistor is designated as RGAIN on the board and has a default value of 15 kiloOhms. When the RGAIN resistor value is reduced, the sensor becomes less sensitive and more force can be applied before saturating the output. Conversely, if the RGAIN value is increased, the sensitivity increases and the output saturates at a lower applied force. If RGAIN is changed, calibration with known forces will have to be done to determine the proper formula. Based on limited testing, RGAIN=5 kilo-ohms will give enough range to measure up to 1000 lbs with the 100 lb. Flexiforce sensor.		If a larger force range is desired, a resistor on the Adapter board can be replaced. This resistor is designated as RGAIN on the board and has a default value of 15 kiloOhms. When the RGAIN resistor value is reduced, the sensor becomes less sensitive and more force can be applied before saturating the output. Conversely, if the RGAIN value is increased, the sensitivity increases and the output saturates at a lower applied force. If RGAIN is changed, calibration with known forces will have to be done to determine the proper formula. Based on limited testing, RGAIN=5 kilo-ohms will give enough range to measure up to 1000 lbs with the 100 lb. Flexiforce sensor. Changing the gain by much larger amounts can cause sensor instability and is not recommended.

	===Measurement Accuracy===		===Measurement Accuracy===

Mparadis at 16:14, 26 July 2012

2012-07-26T16:14:36Z

← Older revision		Revision as of 16:14, 26 July 2012
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			[[Category:UserGuide]]

	==Getting Started==		==Getting Started==

Mparadis: /* Running Phidgets Sample Program */

2012-07-26T14:44:57Z

Running Phidgets Sample Program

← Older revision		Revision as of 14:44, 26 July 2012
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	{{UGwin2\|'''InterfaceKit-full'''}}		{{UGwin2\|'''InterfaceKit-full'''}}

	{{~~UGbox~~\|		{{UGbox6\|
	#Double Click on Phidget InterfaceKit 8/8/8 in the Phidget Control Panel to bring up InterfaceKit-full and check that the box labelled Attached contains the word True.		Double Click on the [[File:Ph.jpg\|link=]] icon to activate the Phidget Control Panel and make sure that the '''Phidget InterfaceKit 8/8/8''' is properly attached to your PC.
			\|[[File:1018_2_Control_Panel_Screen.jpg\|400px\|link=]]
			\|
			#Double Click on '''Phidget InterfaceKit 8/8/8''' in the Phidget Control Panel to bring up InterfaceKit-full and check that the box labelled Attached contains the word True.
	#Make sure that the Ratiometric box is Ticked.		#Make sure that the Ratiometric box is Ticked.
	#When no force is applied to the sensor, the value in the corresponding Analog-In box is 0. As more force is applied to the sensor, the value will increase. When the value increases to 975 to 1000, the output of the sensor is saturated and additional force will not affect the value in the box.		#When no force is applied to the sensor, the value in the corresponding Analog-In box is 0. As more force is applied to the sensor, the value will increase. When the value increases to 975 to 1000, the output of the sensor is saturated and additional force will not affect the value in the box.
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	#Click on the Sensors button to bring up the Advanced Sensor Form.		#Click on the Sensors button to bring up the Advanced Sensor Form.
	\|		\|
	[[File:~~placeholder~~.jpg\|400px\|link=]]		[[File:Sensor_InterfaceKit_Screen_421.jpg\|400px\|link=]]
	\|		\|
	#In the Sensor 6 box, select the 1120 - FlexiForce Adapter Board from the drop down menu.		#In the Sensor 6 box, select the 1120 - FlexiForce Adapter Board from the drop down menu.

Burley: Created page with "==Getting Started== ===Checking the Contents=== {{UGbox| '''You should have received:''' * A FlexiForce adapter board * A sensor cable * A FlexiForce interface cable * Two ro..."

2012-07-23T19:51:52Z

Created page with "==Getting Started== ===Checking the Contents=== {{UGbox| '''You should have received:''' * A FlexiForce adapter board * A sensor cable * A FlexiForce interface cable * Two ro..."

New page

==Getting Started==

===Checking the Contents===
{{UGbox|
'''You should have received:'''
* A FlexiForce adapter board
* A sensor cable
* A FlexiForce interface cable
* Two round plastic discs for the FlexiForce sensor sensing pad
|
'''In order to test your new Phidget you will also need:'''
* A PhidgetInterfaceKit 8/8/8 or PhidgetTextLCD
* A USB Cable
* A FlexiForce sensor
||}}

===Connecting the Pieces===
{{UGbox|
#Connect the FlexiForce Adapter Board to an Analog Input on the PhidgetInterfaceKit 8/8/8 board using the sensor cable.
#Attach the FlexiForce sensor into the Flexiforce Interface cable.
#Insert the other end of the Interface cable into the terminal block on the Adapter Board. The polarity of the FlexiForce sensor does not matter.
#Connect the PhidgetInterfaceKit to your PC using the USB cable.
|
[[File:1120_0_Connecting_The_Hardware.jpg|400px|link=]]
||}}

===Testing Using Windows 2000 / XP / Vista / 7===

{{UGwin}}

===Running Phidgets Sample Program===

{{UGwin2|'''InterfaceKit-full'''}}

{{UGbox|
#Double Click on Phidget InterfaceKit 8/8/8 in the Phidget Control Panel to bring up InterfaceKit-full and check that the box labelled Attached contains the word True.
#Make sure that the Ratiometric box is Ticked.
#When no force is applied to the sensor, the value in the corresponding Analog-In box is 0. As more force is applied to the sensor, the value will increase. When the value increases to 975 to 1000, the output of the sensor is saturated and additional force will not affect the value in the box.
#You can adjust the input sensitivity by moving the slider pointer.
#Click on the Sensors button to bring up the Advanced Sensor Form.
|
[[File:placeholder.jpg|400px|link=]]
|
#In the Sensor 6 box, select the 1120 - FlexiForce Adapter Board from the drop down menu.
#The force measured by the sensor is shown here.
#Formula used to convert the analog input SensorValue into force, either in lbs.
#A drop-down menu to select the force range of the FlexiForce sensor being used. In this case, a 25-pound rated sensor is used.
|
[[File:1120 0 Advanced Sensor Form Screen.jpg|link=|400px]]
}}

===Testing Using Mac OS X===

{{UGmac| | }}

===Using Linux===

{{UGlinux}}

===Using Windows Mobile / CE 5.0 / CE 6.0===

{{UGce}}

==Technical Details==
===Formulas===
The FlexiForce Force sensor is a piezoresistor that has a very large resistance when it is not loaded (in the range of MegaOhms). The resistance decreases as more and more force is applied to it. Tekscan offers sensors with standard force ranges, such as 0-1 lb, 0-25 lbs, and 0-100 lbs. The same adapter board can be used for all three ranges. Because the expected part-to-part variance between FlexiForce sensors is as high as 40% it is imperative that you calibrate your sensor and determine the specific formula which applies to ''your'' sensor if you want accurate results. For information on how to calibrate your sensor, refer to the [http://www.phidgets.com/documentation/Phidgets/3100_0_FlexiforceUserManual.pdf FlexiForce User Manual] from Tekscan.

===FlexiForce Sensors===
The FlexiForce sensors are easy to interface to the adapter board. They can be plugged into the Interface cable that is included. The other end of the cable has been stripped and tinned so that they can be easily inserted into the terminal block. This is useful if a longer cable is needed, as wires can be soldered to the stripped ends. The polarity of the FlexiForce sensors does not matter.
If a larger force range is desired, a resistor on the Adapter board can be replaced. This resistor is designated as RGAIN on the board and has a default value of 15 kiloOhms. When the RGAIN resistor value is reduced, the sensor becomes less sensitive and more force can be applied before saturating the output. Conversely, if the RGAIN value is increased, the sensitivity increases and the output saturates at a lower applied force. If RGAIN is changed, calibration with known forces will have to be done to determine the proper formula. Based on limited testing, RGAIN=5 kilo-ohms will give enough range to measure up to 1000 lbs with the 100 lb. Flexiforce sensor.

===Measurement Accuracy===
To obtain the most accurate results, it is recommended that the sensor rests on a smooth surface and the object is only on the sensing pad and centered as much as possible. This can be achieved by using a small disc (included) that is just large enough to cover the sensing pad, and then placing the full force on the disc. Without the disc, the object may rest on the surrounding surface and record the force inaccurately. Care must also be taken to avoid jagged or sharp edges on the sensing pad, as it can affect the measurement as well as potentially puncture the pad. The pad at the end of the strip is the only place where force is sensed. Any force along the rest of the strip is ignored. The longer the object rests on the sensing pad, the more the SensorValue will drift and vary slowly in value. It is very difficult to compensate for the drift since different constant forces will produce different drift rates. For this reason, the average accuracy of this sensor is approximately 5%. The formula above was determined after the object of known force was resting on the sensing pad for 15 seconds.

{{UGotherint}}

{{UGasens}}

==Product History==
{{UGhist}}
{{UGrow|February 2010 |0 |N/A |Product Release }}