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GSA Golf PX optical sensors

All our optical sensor club and ball tracking systems are hand made and tested to perfection

Our manufacturing and assembly time for the PX2 sensor mat exceeds 16 hours per unit

How the PX club tracking circuit board works

The PX2 club tracking circuit board features dual 16 bit club speed and face angle timers, 93 club path sensors and 3 reset sensors.

As the club passes over the over one or more of the 3 reset sensors, it's shadow will generate a fast reset signal that resets the dual 16 bit club speed and face angle timers

so that they start from zero at the first part of the swing and resets all the club path memory latches.

As the club passes over the rear and front rows of sensors, the club path shadow sets the path latches and the timers are stopped.

This leaves us with a trace of the club path and two timer values.

If the club face is exactly square then the two timer values will be the same and club speed can be calculated from either of them

using the known distance from the reset sensors to the front sensors and the known clock speed.

If they vary then this indicates that either the toe of club face or the heel of the face reached one of the timer sensors sooner or later than the other. i.e. the club face was open or closed.

In this case the average of the two timer values is used to calculate a mean club speed and this speed and time is used calculate the distance the toe and heel would have traveled given this speed.

We then use the formula d = v*t to get both the heel and tow distances and using simple trigonometry with the known distance the timer sensors are apart,

calculate the angle between the two distances which equate to the face angle of the club.

Data captured

1. Club head velocity

2. Club head face angle at impact to ball ( degrees club-head open or closed at moment of impact in relation to club head path )

3. Club head path   i.e. Square, in-to-out, out-to-in. 

4. Horizontal ball position at impact on club face

96 sensors for double accuracy

96 sensors, 2 * 16 bit counters, USB Serial I/O

Maximum measurable Club Path : 24° in-to-out 29° out-to-in +/- 0.65°

Advanced mathmatical algorithms in the software calculate (not measure) ball spin and spin axis tilt

from the club-face angle, club path, loft and velocity which determines the ball flight curve

ie. draws, fades, hooks and slices.

PX Ball track

Add-on to the PX2 sensor mat

$ 1,299.00


PX 1 / PX 2 advantages over low cost pad simulators

Our manufacturing and assembly time for the PX2 sensor mat exceeds 8 hours per unit

1. Straight off the bat, the most obvious advantages are the quality of the mat itself and it's enormous upgrade possibilities

Essentially all low cost golf simulator pads are dead end streets as they don't offer anyway to upgrade their systems.

Upgrading means then throwing these pads away and buying a new system from another manufacturer

2. Low cost optical sensor golf pads only use a thin grass top layer that feels very hard.

When hitting into these pads it can hurt and cause sprained wrists.

After using these pads for a while you'll probably find that you are adjusting your swing so as not to hit into the mat.

If you are used to taking a divot with iron shots then you'll only do this once with one of these pads.

In contrast to the marketing hype the manufacturers of these low cost pads that tell you about how it will improve your game,

in fact they can do quite the opposite as many have told us it actually has harmed their play.

Buyer beware, low cost pads can acutually harm your game, not improve it

After using one of these low cost pads for any period of time, you'll be programming your body and swing to not take a divot

and once out on the real course you'll be topping balls all over the place

GSA Golf PX mats - in contrast - use long grass fiber mats that allow the club to get under the ball for a true feel

 

GSA Golf PX mats use FiberBuilt grass panels

 

3. While GSA Golf PX mats function with the best high-end golf simulator software on the market today (i.e. E6 and TGC etc)

these low cost pads use their own software and don't offer anyway to upgrade or use E6, TGC or Perfect Parallel etc

4. Also In contrast to these low cost sensor pads, the PX2 has over 4 times the number of sensors and

- unlike these reflex sensor pads that require reflective tape to be stuck to the underside of the club -

the PX 1 or PX 2 uses shadow based sensors that don't require any reflective tape or markings anywhere on the club.

PX 1 advantages over low cost pad simulators

in addition to the above mentioned items

Essentially, low cost sensor pads use so few sensors (16 or 32) that any realistic club path detection is just not possible

and as ball path has been proven to be 85% of face angle

then club path can be derived from face angle with just as much or even more accuracy.


Reflex sensor pads VS Shadow sensor pads

Reflex sensor pads

Nearly all low cost golf pads on the market are reflex sensor pads

The method here is to place IR LED light emitters next to the optical sensors in the pad so that

when a club passes over the sensors, the IR light hits the underlying surface of the club and reflects back to the optical sensors.

The major problem with this method is that the light being reflected is dependent on the reflectivity of the underlying surface of the club

which can greatly vary depending on the angle of the club and type of underlying surface with all it's varying degrees of reflectivity.

The result is inaccurate club face angle detection.

The solution to this problem is to cover the entire underside of the club with low reflective black tape and then add a high reflective strip along the underlying leading edge of the club.

Other than all the hassle of having to tape up the entire underside of all your woods and drivers, the whole lot starts to peel off if the club hits the hard surface of these pads.

So have fun with that !

Shadow based sensor pads

In contrast, shadow based optical sensor pads - like our PX series - produce very clear and defined shadow images of the club as it passes over the sensors,

which results in precise and accurate club face angle measurements without the requirement to add blackout tape and reflective strips to the club.

In addition, because shadow based systems don't require IR emitters, they can pack double the number of sensors in the same space for double the accuracy.

Note that most low cost sensor pads on the market use just 16 or 32 sensors

whereas our PX2 club tracking mat features 96 sensors !

To conclude, shadow based sensor pads are far more accurate then reflex sensor systems but do have one major draw back over reflex sensor pads.

Namely, when putting you can't look down over the ball as you would normally do when putting as your head will block the overhead light and so the system won't work then.

Solutions to this issue are:

1. keep your head up or to the side when putting.

2. Use our floor lamp so that the light source is below your head height.

3. Mount the overhead lamp further forward so that the light enters the sensors at an angle

(note that this method requires cutting down the leading edge of the grass fibers down)

4. Use a separate ball tracking system as with the PX3 or our CX2 cameras


 


PX - LX

The PX - LX combines any of the PX sensor tracking mats with the LX Lite or LX Pro camera launch monitor

Add ball vertical launch, speed and spin to the PX1 or PX2 or PX3 sensor tracking mats with the PX-LX

Click above to read more about LX Launch Monitors


Pros and Cons of optical systems compared to camera systems

PX optical system advantages

1. Compared to camera systems, our PX optical sensor systems are a breeze to setup

Other than installing the software and mounting an overhead lamp, PX optical sensor systems are Plug'n,Play

2. PX Optical sensor systems don't require the room or enclosure to be dark

3. PX Optical sensor systems don't require flooring to be non reflective

4. PX Optical sensor systems don't require any tracking dots to be applied the club

5. PX Optical sensor systems detect very precise club speed as well as club face angle and club path

PX optical system disadvantages

1. Optical sensor systems are not quite as accurate as camera systems

2. Optical sensor systems require cameras (LX or CX) to detect ball launch angle

3. Optical sensor systems require that the player always play the ball from the same spot unless using ball tracking cameras

Combining camera and optical sensor systems

Most of the above disadvantages can be overcome by combing both camera and optical sensor systems

The PX5 for example uses optical sensors to capture club data so that there is no requirement to apply any tracking dots to the club

and the cameras capture ball data (ball speed, path and launch angle) and allow the player to hit from other surfaces like fairway, rough, sand and greens for putting.

GSA Golf true feel mats

Warning! Most low cost (under $1000 ) optical sensor golf pads only use a thin grass top layer that feels very hard.

When hitting into these pads it can hurt and cause sprained wrists.

After using these pads for a while you'll probably find that you are adjusting your swing so as not to hit into the mat.

In contrast, GSA Golf use long grass fiber mats that allow the club to get under the ball for a true feel


PX2 vs CTS

Club Tracking Systems

PX2 advantages

1. Detects club path, speed and face angle for all clubs without tracking dots or markings on the club

2. Easy setup compared to cameras - it's essentially plug n play

3. PX Optical sensor systems detect very precise club speed as well as club face angle and club path

PX2 disadvantages

1. No photographic evidence of club face angle accuracy

CTS advantages

1. Detects club path, speed and face angle for all clubs with photographic evidence

2. Most accurate club tracking system available

CTS disadvantages

1. More complex setup

2. If not using tracking dots a visible flash is seen with every shot

3. Tracking dots or stripes may need to be applied to the clubs

Not sure which is best ?

No problem. We offer free exchanges of CTS and PX2 systems with associated price adjustments.

i.e. if you purchase one club tracking system and decide later that the other would be better than we can usually do a straight swap plus price difference as long as the unit is in good condition


BX ball tracking sensors

Use the BX ball path detection sensor array with built in trigger for the Vcam vertical launch camera

to replace the Hcam and SX line scan camera in a CX system

Price: $ 1,295.00

 

 


Camera sensor trigger array

As an alternative to our line scan camera triggers, you can also use optical sensor array triggers to trigger the V and H cam ball tracking cameras

The unit is 5ft in length and features 48 sensors that detect any ball passing over them.

Its advantage over the SX line scan camera trigger is that it doesn't require a non reflective floor surface that usually requires black carpet to be placed under the SX camera

Product features sturdy acrylic glass casing that takes the full weight of anyone standing on the unit.

Price : $ 450.00

 


Optional extra stance mats

If you are not wanting to raise the flooring but still want the hitting mats to be at the same -or very near - the level as the flooring

then you can simple add our 1 1/4 inch high stance mats

Set of all 3 stance mats

2 x 3ft X 4ft left and right stance mats

plus 1 x 5ft X 5ft - front mat

$ 750- free shipping

OR

2 x 4ft X 4ft left and right stance mats

plus 1 x 5ft X 5ft - front mat

$ 836 - free shipping


Warranty and Support

One year full warranty plus life time free e-mail support

Life time free GSA Golf software updates

No maintenance costs. No subscription fees.

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Please read our legal notice via the link below regarding warranty periods, sales terms and return policy

Legal notice 

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