H2W Technologies

The DRS stage is a low profile, wider footprint, enclosed positioning stage. It is used in closed loop positioning applications that require high speed and high accelerations of heavier loads.

H2W Technologies Voice Coils are ideal for short stroke (typically less than 2 inches) closed loop servo applications. Their compact size allows them to fit into small spaces. They have very low electrical and mechanical time constants. The low moving mass allows for high accelerations of light payloads. These actuators are wound in such a way that no commutation is required for motion to occur. The result is a much simpler and more reliable system. Coupling the actuators with a bearing system (if not supplied), position feedback device, linear servo amplifier and motion controller yields a system that is capable of intricate position, velocity, and acceleration control. These actuators can also be used for precise force control because of the linear force versus current characteristics.

Limited Angle Torque Motors Simply stated, a current carrying conductor placed in a magnetic field will have a force (or torque) exerted upon it. This force is proportional to the direction and magnitude of the current and the flux density field. Since the permanent magnet flux density field is fixed, the direction of the rotation depends on the polarity of input current and the amount of torque that is produced is directly proportional to the magnitude of the input current.

The SRS stage is a compact, small footprint, open type positioning stage. It is used in closed loop positioning applications that require high speed and high accelerations of lighter loads.

The 3 phase brushless linear motors, also known as a linear servo motors, are direct drive motors that are ideal for long stroke, closed loop servo, linear motion applications. They can be used at speeds up to 240 in sec [6 m sec]. They are capable of very precise position, velocity and acceleration control when coupled with a linear encoder for position feedback.

Should this motor be required to operate in an open loop application, you can control it with a step and direction signal from a standard microstepping drive. The power is supplied to the 2 or 4 phase forcer winding via a flexible cable. The full step is .010” [250 microns] for a 2 phase forcer and it can be microstepped down to .00004” [1 micron]. By integrating an optional linear encoder onto the single-axi