Fiber Optic Sensors
ABACUS OPTICAL
MECHANICS, INC
(805) 494 9940
Fiber Optic Sensors

 To to view our Capacative Sensors click here

To view animated video 
of Automotivefiber Optic window 
"anti squeeze sensor" click here
Image of a Fiber optic impact sensor
To contact us please click here
Abacus Logo
Contact Fiber Optic Impact Sensors We design fiber optic sensors. Each sensor consists of single strand of the optical fiber cable connected to an umbilical cable. Any perturbation of the sensor fiber changes the amount of light passing through the fiber optic cable. This change in optical intensity can be set to trigger the optoelectronics to either close or open a relay.
Abacus Optical mechanics is seeking partners to further develop these sensor and commercialize the sensor: 

These sensors can be used in numerous applications including:
Fiber optic impact, pressure MAT sensor (floor sensors) 
Impact (edge sensor)
Pressure/ Compression/ Impact (automotive window "anti squeeze sensor") 
Intrusion (microphone cable system)
Fiber Optic axle counter sensor system (weight in motion ) 

(click on appropriate area to view an example of sensor application)

Image of a fiber optic pressure and impact mat sensor Fiber Optic Impact and pressure Mat sensor (floor sensor) 

Abacus Optical Mechanics fiber optic mat sensor consists of a flexible rubber /vinyl mat in which the sensor fiber is embedded. Any impact or vibration on or of the mat can be detected by the fiber sensor. When a certain threshold of impact is reached the optoelectronics box can trip a relay, which can reverse or stop a motor or sound a buzzer or trigger an electrical device. The sensitive of the device is adjustable down to impact of 1400 ergs. (Equivalent to a dime dropped from one inch.)

Image of Fiber Optic Edge Sensor Fiber Optic Impact Edge Sensor 

 Abacus Optical Mechanics fiber optic "edge sensor" consists of a flexible rubber /vinyl extrusion in which the sensor fiber is embedded. Any impact, pressure, vibration on or of the edge sensor can be detected by the fiber sensor. When a certain threshold of impact is reached the optoelectronics box can trip a relay, which can reverse or stop a motor or sound a buzzer or trigger an electrical device. The sensitive of the device is adjustable down to impact of 1400 ergs. (Equivalent to a dime dropped from one inch.) 

Image of Fiber Optic Auto Door Window Sensor Pressure/ Compression/ Impact (automotive window "anti squeeze sensor")

The fiber optic "anti-squeeze sensor" for car door windows consists of an optoelectronics box and a loop of fiber optic cable. The sensor fiber trunk is imbedded in the window seal and is sensitive to impact. When a certain threshold of  impact is reached (due to body part e.g. finger) trapped in a closing window the electrical window motor is programmed to reverse

Image of a fiber optic Intrusion sensor Intrusion Fiber Optic Sensor The sensor we produce could be used for perimeter security monitoring by either being buried in the ground or attached to a fence. Interruption or perturbation of the fiber sensor will result in a signal change, which in turn can trigger a security response. The sensitivity of the sensor can be adjusted. 
imag of a fiber optic axle counter sensor
Fiber Optic axle counter sensor system 
(vehicle counter and weight in motion sensor) 
This device is used in automotive traffic control counting the number of vehicles passing a point as well as the weigh of each axle of the vehicle

The sensing fiber trunk is embedded in a rubber extrusion that can be manufactured to any length. This extrusion is stretched across a street surface. Any impact on the extrusion caused by a vehicle passing over the extrusion results in a change in the optical signal. The greater the force of impact (which is proportional to speed and weight) the greater the resultant optical signal. Vehicle speed can be calculated timing the impact form the first sensor to the second sensor fiber. Knowing the impact force and the speed of the vehicle will enable the user to calculate the weight of each axle crossing the fiber sensor rubber hose.


Abacus LogoABACUS OPTICAL MECHANICS
1851 Holser Walk, #220
Oxnard, CA 93030 USA
Call Anthony Bledin
(818) 832 3300 or
(805) 494 9940
Email abacus1@earthlink.net

More details concerning the fiber optic sensor can be download by clicking here. This file provides details about the sensor and data for your evaluation. (NOTE: File size is about 380K). This file is in Adobe PDF (portable document format), and can be read by an Adobe viewer. The viewer is available to download free of charge from this Adobe site by clicking here.