Differential measurement:

Two precisely matched sensors are placed on both sides of the platform on which the two sensors form the opposite ends of the balanced bridge circuit, which provides excellent linearity and thermal stability, so the output is accurately recorded The slightest movement of the line. Such as laser reflector focusing platform positioning.

Low temperature applications:

The 1SR9 sensor has a special low temperature application version, which has an internal telescopic joint that can effectively eliminate stress or temperature caused by mechanical degeneration when installing a Belleville gasket with screws. It has been shown to have the most excellent performance in liquid nitrogen at 70 ° K. Several space projects use this sensor in a 4 ° K liquid helium environment.

Vacuum applications:

Sensors and ZED51 electronic devices have been used in the vacuum application of 10-6 Torr.

Ultra-high precision aerospace applications:

MIL-H-38534 has been manufactured. All electronic devices are in line with MIL-SPEC standards. ZED51 in combat environment more than 55,000 hours, space flight environment more than 238,000 hours.

Small size (only 2 x 2.12 x 0.75 inches), can be applied to small space occasions.

Business differential:

ZED52 differential system is a commercial version of ZED51. This system greatly reduces the cost of the differential system, but also to maintain the performance advantages. These differential systems are preferred if the weight, size and energy consumption are not specifically limited.

Relay lens laser positioning (RME):

RME demonstrated that a laser that was launched from Earth to a 450-kilometer orbit satellites could be accurately reflected to a target ground of 3 meters in diameter.

ZED51 is used to accurately locate the 1500px relay lens, the accuracy of 16 times higher than the test target, line of sight stability is 2.3 times higher.

Ultra-high precision laser focusing in semiconductor wafer fabrication:

Laser micro-injection technology is used to develop "direct write" applications and high-throughput template pattern applications in semiconductor wafer fabrication, and is also incorporated into 0.1 micron process products. ZED51 is applied to this technology, precise control of the laser position, complete ultra-high precision position, key size and alignment control.

Other applications: Night vision systems, Precision telescope positioning, Fast steering mirrors, Image stabilization systems

Differential Measurements

Differential measuring systems are a significant advance in precision measurement technology. They provide exceptional resolution, repeatability, and nulling accuracy for detecting the aligned/centered position of a conductive target relative to a pair of noncontacting sensors. 

In an eddy current differential system, the two coils in the inductive bridge are housed in two separate sensors. Rather than one active coil and one reference coil, both sensors contain active coils as in figure 2. These two sensors are usually placed on opposite sides of a target or opposite sides of a target pivot point, as in figure 1.

As the target moves closer to one sensor, it moves away from the other, increasing the impedance in one leg of the inductive bridge, and decreasing the other. This push-pull effect amplifies the linear output-per-displacement and eliminates the need for summation amplifiers that add noise and drift. As a result, differential systems provide greater resolution and thermal stability than single-ended systems.

Differential measurement:

Two precisely matched sensors are placed on both sides of the platform on which the two sensors form the opposite ends of the balanced bridge circuit, which provides excellent linearity and thermal stability, so the output is accurately recorded The slightest movement of the line. Such as laser reflector focusing platform positioning.

Low temperature applications:

The 1SR9 sensor has a special low temperature application version, which has an internal telescopic joint that can effectively eliminate stress or temperature caused by mechanical degeneration when installing a Belleville gasket with screws. It has been shown to have the most excellent performance in liquid nitrogen at 70 ° K. Several space projects use this sensor in a 4 ° K liquid helium environment.

Vacuum applications:

Sensors and ZED51 electronic devices have been used in the vacuum application of 10-6 Torr.

Ultra-high precision aerospace applications:

MIL-H-38534 has been manufactured. All electronic devices are in line with MIL-SPEC standards. ZED51 in combat environment more than 55,000 hours, space flight environment more than 238,000 hours.

Small size (only 2 x 2.12 x 0.75 inches), can be applied to small space occasions.

Business differential:

ZED52 differential system is a commercial version of ZED51. This system greatly reduces the cost of the differential system, but also to maintain the performance advantages. These differential systems are preferred if the weight, size and energy consumption are not specifically limited.

Relay lens laser positioning (RME):

RME demonstrated that a laser that was launched from Earth to a 450-kilometer orbit satellites could be accurately reflected to a target ground of 3 meters in diameter.

ZED51 is used to accurately locate the 1500px relay lens, the accuracy of 16 times higher than the test target, line of sight stability is 2.3 times higher.

Ultra-high precision laser focusing in semiconductor wafer fabrication:

Laser micro-injection technology is used to develop "direct write" applications and high-throughput template pattern applications in semiconductor wafer fabrication, and is also incorporated into 0.1 micron process products. ZED51 is applied to this technology, precise control of the laser position, complete ultra-high precision position, key size and alignment control.

Other applications: Night vision systems, Precision telescope positioning, Fast steering mirrors, Image stabilization systems

Relay Mirror Experiment

The Relay Mirror Experiment (RME) demonstrated that a laser beam can be accurately relayed from the earth to an orbiting satellite 450 kilometers away and then back to a 3-meter target on the ground. A free-flying spacecraft functions as the orbiting laser beam relay system. The objective was to validate the stabilization, tracking and pointing technologies at military performance levels through a credible demonstration of a space-based relay mirror system.

ZED51 differential sensors were used to precisely position the 60-centimeter relay mirror on the spacecraft payload to reflect the beams back to the target site. The ZED51 was instrumental in achieving relay laser beam pointing accuracy that was 16 times.

better than the experimental goal and line-of-sight stabilization that was 2.3 times better.

Super Precise Laser Focusing

Laser microcolumn technology is being used to develop direct-write applications in semiconductor wafer manufacturing. Microcolumn architecture uses laser devices with column lengths of several millimeters, and offers high resolution, miniaturization, and new source technology possibilities.

The technology is being used to develop both direct write applications and high-throughput mask patterning applications, and is being incorporated into products around the 0.1 micron generation.

ZED51 sensors are used in this technology to precisely position the laser to allow exceptionally fine placement, critical dimensions, and alignment control.