Middletown-based KVH Industries Inc. has received a new $1-million order for its self-contained navigation system that combines fiber-optic gyro-based inertial measurement technology with global positioning system technology. “This latest order, following on the heels of another $900,000 order a month ago, is evidence of the rapid acceptance” of the company’s system, said Dan Conway, vice president of business development. He did not disclose the source of the orders.